An Initial Assessment of Freight Bottlenecks on Highways - Appendix A

Appendix A

Highway Interchange Bottlenecks

A.1 Location of Highway Interchange Bottlenecks for Trucks

Figure A.1 shows the location of highway interchange bottlenecks for trucks. The bottleneck locations are indicated by a solid dot. Most are located on urban Interstate interchanges. The size of the open circles accompanying each dot indicate the relative annual truck hours of delay associated with the bottleneck.

Figure A.1 Interchange Capacity Bottlenecks on Freeways Used as Urban Truck Corridors

Map of the continental United States showing the interstate highway system as a network. Highway interchange bottlenecks are indicated by a solid dot, with open circles sized to indicate the truck hours of delay on an annual basis. Population centers along the East coast, in the Midwest, and on the West coast states account for the majority of bottlenecks for trucks.

Source: Cambridge Systematics, Inc.

A.2 Listing of Highway Interchange Bottlenecks for Trucks

This section presents six tables. Tables A.1, A.2, and A.3 list the top 25 highway interchange bottlenecks, ranking them in descending order of annual truck hours of delay for "all trucks" (Table A.1); for "large trucks making longer-distance trips" (i.e., "FAF Trucks") (Table A.2); and for "large trucks making longer-distance trips ("FAF trucks") greater than 500 miles" (Table A.3).

Table A.4 combines the top 25 highway interchange bottlenecks from each of the preceding tables and ranks them in descending order of annual truck hours of delay for "large trucks making longer distance trips (i.e., "FAF trucks") greater than 500 miles."

Table A.5 lists all the highway interchange bottlenecks for trucks identified in the scan, ranking them in descending order of annual truck hours of delay for "all trucks."

Finally, for comparison, Table A.6 lists the top 25 most congested highway interchanges as identified in the American Highway Users Alliance study. These bottlenecks are ranked in descending order of annual hours of delay for all vehicles, including trucks.

The bottleneck ranking in Tables A.1 to A.5 are summarized below.

Table Number	Bottlenecks	Ranked in Descending Order of Annual Truck Hours of Delay for …
Table A.1	Top 25	All Trucks
Table A.2	Top 25	Large Trucks Making Longer Distance Trips ("FAF Trucks")
Table A.3	Top 25	Large Trucks Making Longer Distance Trips ("FAF Trucks") Greater Than 500 Miles
Table A.4	All top-ranked bottlenecks as identified in Tables 6.1, 6.2, and 6.3, eliminating duplicate listings	Large Trucks Making Longer Distance Trips ("FAF Trucks") Greater Than 500 Miles
Table A.5	All	All Trucks

The data in the tables and their sources, by column heading, are as follows.

Bottleneck

Location. The names of the interchange routes and local nickname of the interchange as identified by the state departments of transportation, Cambridge Systematics, and Battelle.
Urban Area. The name of the urban area in which the interchange is located as identified in the FHWA 2002 HPMS database.
Critically Congested Route Number. The route number of the critically congested highway section in the interchange as identified by Cambridge Systematics and Battelle from HPMS database and state department of transportation maps. The scan identified only the critically congested roadway and the corresponding two-way truck traffic volumes on that roadway. The delay estimation methodology calculates delay resulting from queuing on the critically congested roadway and adjacent highway sections; however, it does not calculate delay on the other roadway at the interchange. This means that hours of delay are calculated on only one of the two intersecting highways or two of the four legs on a interchange, potentially underreporting total delay at the interchange.
Number of Lanes. The number of traffic lanes as reported in the 2002 HPMS database.

All Vehicles

AADT. The number of vehicles, including automobiles and trucks of all sizes, traveling the critically congested roadway each day. Annual Average Daily Traffic as reported in the 2002 HPMS database and extrapolated to 2004.
Daily Minutes of Delay per Vehicle. The number of minutes each vehicle is delayed each day by congestion at the bottleneck. Daily Minutes of Delay per Vehicle for All Vehicles as estimated by Cambridge Systematics.

All Trucks

AADTT. The number of trucks of all sizes traveling the critically congested roadway each day. Annual Average Daily Truck Traffic (i.e., number of trucks per day on the critically congested roadway) as provided by Battelle from the FHWA Freight Analysis Framework database, based on HPMS data and state department of transportation vehicle counts. Extrapolated to 2004.
Percent of All Vehicles. The number of trucks as a percentage of all vehicles. All Trucks as a percentage of All Vehicles (AADTT divided by AADT).
Annual Hours of Delay for All Trucks. The number of hours of delay accruing annually to all trucks delayed by congestion at the bottleneck. Daily Minutes of Delay per Vehicle multiplied by 2004 AADTT for All Trucks.

Large Trucks Making Longer Distance Trips (i.e., "FAF Trucks")

AADTT (Large Trucks…). The estimated number of large freight trucks—assumed to be primarily five-axle tractor-semitrailers—traveling the critically congested roadway each day. Annual Average Daily Truck Traffic of Large Trucks Making Longer Distance Trips (i.e., "FAF Trucks") calculated by multiplying AADTT for All Trucks by the estimated percentage of Large Trucks Making Longer Distance Trips (i.e., "FAF Trucks").
Percent of All Trucks. The number of large freight trucks as a percentage of all trucks. Large Trucks Making Longer Distance Trips (i.e., "FAF Trucks") as a percent of All Trucks as estimated by Cambridge Systematics based on FHWA Freight Analysis Framework data developed by Battelle. Percentages are for the urbanized area and may over- or underestimate the actual number of Large Trucks Making Longer Distance Trips (i.e., "FAF Trucks") for a specific roadway.
Annual Hours of Delay… Large Trucks…. The number of hours of delay accruing annually to large freight trucks delayed by congestion at the bottleneck. Daily Minutes of Delay per Vehicle multiplied by AADTT for Large Trucks Making Longer Distance Trips (i.e., "FAF Trucks").
Annual Commodity Tons… Large Trucks…. The approximate tonnage of the cargo carried by large freight trucks delayed by congestion at the bottleneck. AADTT (Large Trucks…) multiplied by approximate commodity tons per truck provided by Battelle from the FHWA Freight Analysis Framework database.
Annual Commodity Value… Large Trucks…. The approximate value of the cargo carried by large freight trucks delayed by congestion at the bottleneck. AADTT (Large Trucks…) multiplied by approximate commodity value per truck provided by Battelle from the FHWA Freight Analysis Framework database.
Percent Trips… Greater Than 500 Miles. The number of large freight trucks traveling more than 500 miles as a percentage of all large freight trucks; a proxy for long-haul "transcontinental" truck trips. Large Trucks Making Longer Distance Trips (i.e., "FAF Trucks") Greater Than 500 Miles as a percent of AADTT (Large Trucks…) as estimated by Cambridge Systematics based on FHWA Freight Analysis Framework data developed by Battelle. Percentages are for the urbanized area and may over- or underestimate the actual number of Large Trucks Making Longer Distance Trips (i.e., "FAF Trucks") Greater Than 500 Miles for a specific roadway.
Annual Hours of Delay… Greater Than 500 Miles. The number of hours of delay accruing annually to large freight trucks traveling more than 500 miles delayed by congestion at the bottleneck. Daily Minutes of Delay per Vehicle multiplied by AADTT (Large Trucks…) multiplied by Percent Trips Greater Than 500 Miles.

Table A.1 Top 25 Highway Interchange Bottlenecks for Trucks
*Ranked By Annual Hours of Delay for All Trucks*
Bottleneck				All Vehicles-2004		All Trucks-2004			"Large Trucks Making Longer Distance Trips"-2004
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	All Trips					Trips Greater Than 500 Miles
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	AADTT	Percent of All Trucks	Annual Hours of Delay	Annual Commodity Tons	Annual Commodity Value	Percent of Large Truck Trips	Annual Hours of Delay
I-90 @ I-290	Buffalo-Niagara Falls	90	4	136,500	8.3	33,100	24%	1,661,900	7,300	22%	367,000	2,632,500	$2,968,000	58%	212,900
I-285 @ I-85 Interchange ("Spaghetti Junction")	Atlanta	285	8	265,300	10.0	27,100	10%	1,641,200	7,800	29%	472,600	2,943,700	$3,262,000	52%	245,800
I-17 (Black Canyon Fwy): I-10 Interchange (the "Stack") to Cactus	Phoenix	17	6	217,300	9.2	28,900	13%	1,608,500	9,000	31%	501,600	3,326,700	$3,792,000	48%	240,800
I-90/94 @ I-290 Interchange ("Circle Interchange")	Chicago-Northwestern IN	90	8	305,800	9.7	26,300	9%	1,544,900	9,200	35%	540,400	3,718,000	$4,218,000	53%	286,400
San Bernardino Fwy	Los Angeles	10	8	268,700	7.2	34,900	13%	1,522,800	11,200	32%	488,700	4,094,500	$4,780,000	31%	151,500
I-94 (Dan Ryan Expwy) @ I-90 Skyway Split (Southside)	Chicago-Northwestern IN	94	8	271,700	7.9	31,600	12%	1,512,900	11,100	35%	531,500	4,485,900	$5,089,000	53%	281,700
I-285 @ I-75 Interchange	Atlanta	285	6	226,300	9.6	25,700	11%	1,497,300	7,400	29%	431,500	2,792,800	$3,095,000	52%	224,400
SR 134 @ SR 2 Interchange	Los Angeles	134	8	247,900	8.3	29,600	12%	1,489,400	9,500	32%	477,500	3,473,000	$4,054,000	31%	148,000
I-77 @ Tryon Rd	Charlotte	77	6	170,500	8.3	29,600	17%	1,487,100	7,300	25%	367,000	2,700,200	$2,983,000	45%	165,200
Long Beach Fwy	Los Angeles	710	8	246,100	8.3	27,500	11%	1,380,300	8,800	32%	442,400	3,217,100	$3,756,000	31%	137,100
I-20 @ I-285 Interchange	Atlanta	20	6	187,200	8.3	27,000	14%	1,359,400	7,800	29%	392,100	2,943,700	$3,262,000	52%	203,900
I-80/I-94 split (Southside)	Chicago-Northwestern IN	80	4	139,600	8.6	25,600	18%	1,343,600	9,000	35%	472,400	3,637,200	$4,127,000	53%	250,400
SR 60 @ I-605 Interchange	Los Angeles	60	8	233,000	8.3	26,100	11%	1,314,200	8,400	32%	422,300	3,070,900	$3,585,000	31%	130,900
Pulaski Rd @ I-55	Chicago-Northwestern IN	55	6	197,200	7.5	28,700	15%	1,300,400	10,000	35%	453,700	4,041,300	$4,585,000	53%	240,500
I-75 @ I-85 Interchange	Atlanta	75	10	339,600	9.1	23,400	7%	1,288,800	6,800	29%	374,900	2,566,300	$2,844,000	52%	194,900
I-93 @ I-95 Interchange	Boston	93	6	188,400	8.3	25,500	14%	1,280,100	2,800	11%	140,800	1,020,000	$1,220,000	36%	50,700
I-290 @ I-355	Chicago-Northwestern IN	290	6	223,100	8.3	24,800	11%	1,246,200	8,700	35%	437,300	3,515,900	$3,989,000	53%	231,800
I-405 (San Diego Fwy) @ I-605 Interchange	Los Angeles	405	10	331,700	9.8	20,900	6%	1,245,500	6,700	32%	398,600	2,449,400	$2,859,000	31%	123,600
I-80 @ Central St.	San Francisco-Oakland	80	8	270,200	8.3	23,800	9%	1,196,700	7,800	33%	392,100	2,851,500	$3,329,000	29%	113,700
San Gabriel River Fwy	Los Angeles	91	10	295,700	8.1	24,100	8%	1,194,300	7,700	32%	381,100	2,815,000	$3,286,000	31%	118,100
I-20 @ Fulton St.	Atlanta	20	6	207,300	8.1	23,700	11%	1,172,700	6,800	29%	336,500	2,566,300	$2,844,000	52%	175,000

Table A.2 Top 25 Highway Interchange Bottlenecks for Trucks
*Ranked By Annual Hours of Delay for Large Trucks Making Longer-Distance Trips*
Bottleneck				All Vehicles-2004		All Trucks-2004			"Large Trucks Making Longer Distance Trips"-2004
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	All Trips					Trips Greater Than 500 Miles
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	AADTT	Percent of All Trucks	Annual Hours of Delay	Annual Commodity Tons	Annual Commodity Value	Percent of Large Truck Trips	Annual Hours of Delay
I-35 @ Martin Luther King Jr	Austin	35	6	229,500	8.3	12,600	5%	635,000	11,200	89%	563,000	4,123,900	$4,768,000	39%	219,600
I-90/94 @ I-290 Interchange ("Circle Interchange")	Chicago-Northwestern IN	90	8	305,800	9.7	26,300	9%	1,544,900	9,200	35%	540,400	3,718,000	$4,218,000	53%	286,400
I-94 (Dan Ryan Expwy) @ I-90 Skyway Split (Southside)	Chicago-Northwestern IN	94	8	271,700	7.9	31,600	12%	1,512,900	11,100	35%	531,500	4,485,900	$5,089,000	53%	281,700
I-17 (Black Canyon Fwy): I-10 Interchange (the "Stack") to Cactus	Phoenix	17	6	217,300	9.2	28,900	13%	1,608,500	9,000	31%	501,600	3,326,700	$3,792,000	48%	240,800
San Bernardino Fwy	Los Angeles	10	8	268,700	7.2	34,900	13%	1,522,800	11,200	32%	488,700	4,094,500	$4,780,000	31%	151,500
SR 134 @ SR 2 Interchange	Los Angeles	134	8	247,900	8.3	29,600	12%	1,489,400	9,500	32%	477,500	3,473,000	$4,054,000	31%	148,000
I-285 @ I-85 Interchange ("Spaghetti Junction")	Atlanta	285	8	265,300	10.0	27,100	10%	1,641,200	7,800	29%	472,600	2,943,700	$3,262,000	52%	245,800
I-80/I-94 split (Southside)	Chicago-Northwestern IN	80	4	139,600	8.6	25,600	18%	1,343,600	9,000	35%	472,400	3,637,200	$4,127,000	53%	250,400
I-24 @ I-440N Interchange	Chattanooga (TN-GA)	24	4	118,200	8.3	18,500	16%	927,500	9,200	50%	462,500	3,330,000	$3,750,000	85%	393,100
Pulaski Rd @ I-55	Chicago-Northwestern IN	55	6	197,200	7.5	28,700	15%	1,300,400	10,000	35%	453,700	4,041,300	$4,585,000	53%	240,500
Long Beach Fwy	Los Angeles	710	8	246,100	8.3	27,500	11%	1,380,300	8,800	32%	442,400	3,217,100	$3,756,000	31%	137,100
I-290 @ I-355	Chicago-Northwestern IN	290	6	223,100	8.3	24,800	11%	1,246,200	8,700	35%	437,300	3,515,900	$3,989,000	53%	231,800
I-285 @ I-75 Interchange	Atlanta	285	6	226,300	9.6	25,700	11%	1,497,300	7,400	29%	431,500	2,792,800	$3,095,000	52%	224,400
SR 60 @ I-605 Interchange	Los Angeles	60	8	233,000	8.3	26,100	11%	1,314,200	8,400	32%	422,300	3,070,900	$3,585,000	31%	130,900
I-75 @ I-74 Interchange	Cincinnati (OH-KY)	75	6	193,100	9.7	19,200	10%	1,128,900	6,900	36%	405,300	2,735,200	$3,044,000	63%	255,300
I-405 (San Diego Fwy) @ I-605 Interchange	Los Angeles	405	10	331,700	9.8	20,900	6%	1,245,500	6,700	32%	398,600	2,449,400	$2,859,000	31%	123,600
I-75 @ U.S. 35 Interchange	Dayton	75	4	127,400	8.3	18,400	14%	923,100	7,900	43%	397,100	3,131,600	$3,485,000	54%	214,400
I-20 @ I-285 Interchange	Atlanta	20	6	187,200	8.3	27,000	14%	1,359,400	7,800	29%	392,100	2,943,700	$3,262,000	52%	203,900
I-80 @ Central St.	San Francisco-Oakland	80	8	270,200	8.3	23,800	9%	1,196,700	7,800	33%	392,100	2,851,500	$3,329,000	29%	113,700
San Gabriel River Fwy	Los Angeles	91	10	295,700	8.1	24,100	8%	1,194,300	7,700	32%	381,100	2,815,000	$3,286,000	31%	118,100
I-10 @ I-110 Interchange	Baton Rouge	10	6	150,400	7.2	15,200	10%	665,000	8,600	57%	375,200	3,163,900	$3,591,000	68%	255,100
I-75 @ I-85 Interchange	Atlanta	75	10	339,600	9.1	23,400	7%	1,288,800	6,800	29%	374,900	2,566,300	$2,844,000	52%	194,900
I-90 @ I-290	Buffalo-Niagara Falls	90	4	136,500	8.3	33,100	24%	1,661,900	7,300	22%	367,000	2,632,500	$2,968,000	58%	212,900
I-77 @ Tryon Rd	Charlotte	77	6	170,500	8.3	29,600	17%	1,487,100	7,300	25%	367,000	2,700,200	$2,983,000	45%	165,200
I-880 @ I-238	San Franciso-Oakland	880	8	282,700	8.3	22,000	8%	1,106,700	7,200	33%	361,900	2,632,200	$3,073,000	29%	105,000

Table A.3 Top 25 Highway Interchange Bottlenecks for Trucks
*Ranked By Annual Hours of Delay for Large Trucks Making Longer Trips Greater Than 500 Miles*
Bottleneck				All Vehicles-2004		All Trucks-2004			"Large Trucks Making Longer Distance Trips"-2004
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	All Trips					Trips Greater Than 500 Miles
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	AADTT	Percent of All Trucks	Annual Hours of Delay	Annual Commodity Tons	Annual Commodity Value	Percent of Large Truck Trips	Annual Hours of Delay
I-24 @ I-440N Interchange	Chattanooga (TN-GA)	24	4	118,200	8.3	18,500	16%	927,500	9,200	50%	462,500	3,330,000	$3,750,000	85%	393,100
U.S. 95 @ I-15 Interchange ("Spaghetti Bowl")	Las Vegas	95	6	199,900	9.8	11,300	6%	670,400	5,600	50%	333,100	1,992,500	$2,286,000	90%	299,800
I-90/94 @ I-290 Interchange ("Circle Interchange")	Chicago-Northwestern IN	90	8	305,800	9.7	26,300	9%	1,544,900	9,200	35%	540,400	3,718,000	$4,218,000	53%	286,400
I-94 (Dan Ryan Expwy) @ I-90 Skyway Split (Southside)	Chicago-Northwestern IN	94	8	271,700	7.9	31,600	12%	1,512,900	11,100	35%	531,500	4,485,900	$5,089,000	53%	281,700
I-75 @ I-74 Interchange	Cincinnati (OH-KY)	75	6	193,100	9.7	19,200	10%	1,128,900	6,900	36%	405,300	2,735,200	$3,044,000	63%	255,300
I-10 @ I-110 Interchange	Baton Rouge	10	6	150,400	7.2	15,200	10%	665,000	8,600	57%	375,200	3,163,900	$3,591,000	68%	255,100
I-80/I-94 split (Southside)	Chicago-Northwestern IN	80	4	139,600	8.6	25,600	18%	1,343,600	9,000	35%	472,400	3,637,200	$4,127,000	53%	250,400
I-285 @ I-85 Interchange ("Spaghetti Junction")	Atlanta	285	8	265,300	10.0	27,100	10%	1,641,200	7,800	29%	472,600	2,943,700	$3,262,000	52%	245,800
I-17 (Black Canyon Fwy): I-10 Interchange (the "Stack") to Cactus	Phoenix	17	6	217,300	9.2	28,900	13%	1,608,500	9,000	31%	501,600	3,326,700	$3,792,000	48%	240,800
Pulaski Rd @ I-55	Chicago-Northwestern IN	55	6	197,200	7.5	28,700	15%	1,300,400	10,000	35%	453,700	4,041,300	$4,585,000	53%	240,500
I-290 @ I-355	Chicago-Northwestern IN	290	6	223,100	8.3	24,800	11%	1,246,200	8,700	35%	437,300	3,515,900	$3,989,000	53%	231,800
I-40 @ I-24 Interchange	Nashville	40	4	147,600	8.3	14,600	10%	735,200	5,800	40%	291,600	2,099,300	$2,364,000	77%	224,500
I-285 @ I-75 Interchange	Atlanta	285	6	226,300	9.6	25,700	11%	1,497,300	7,400	29%	431,500	2,792,800	$3,095,000	52%	224,400
I-35 @ Martin Luther King Jr	Austin	35	6	229,500	8.3	12,600	5%	635,000	11,200	89%	563,000	4,123,900	$4,768,000	39%	219,600
I-15 between Tropicana and Flamingo	Las Vegas	15	6	165,900	6.4	12,400	7%	486,700	6,200	50%	242,800	2,206,000	$2,530,000	90%	218,500
I-12 @ Amite River, Baton Rouge	Baton Rouge	12	4	105,000	6.4	14,400	14%	561,900	8,100	57%	317,200	2,980,000	$3,383,000	68%	215,700
I-75 @ U.S. 35 Interchange	Dayton	75	4	127,400	8.3	18,400	14%	923,100	7,900	43%	397,100	3,131,600	$3,485,000	54%	214,400
I-90 @ I-290	Buffalo-Niagara Falls	90	4	136,500	8.3	33,100	24%	1,661,900	7,300	22%	367,000	2,632,500	$2,968,000	58%	212,900
I-20 @ I-285 Interchange	Atlanta	20	6	187,200	8.3	27,000	14%	1,359,400	7,800	29%	392,100	2,943,700	$3,262,000	52%	203,900
I-75 @ I-85 Interchange	Atlanta	75	10	339,600	9.1	23,400	7%	1,288,800	6,800	29%	374,900	2,566,300	$2,844,000	52%	194,900
I-264 @ I-64 Interchange	Louisville (KY-IN)	264	6	181,100	8.3	16,400	9%	825,500	5,400	33%	271,400	1,990,200	$2,218,000	69%	187,300
I-55 (Stevenson Expwy) @ I-294 Interchange	Chicago-Northwestern IN	55	6	172,600	9.6	17,200	10%	1,001,600	6,000	35%	349,900	2,424,800	$2,751,000	53%	185,400
I-80 @ I-480 Interchange	Omaha (NE-IA)	80	5	173,600	7.9	13,800	8%	658,500	4,500	32%	215,500	1,638,000	$1,856,000	86%	185,300
I-76 @ SR 77 Interchange+J179	Akron	76	4	122,600	8.3	14,000	11%	705,200	7,000	50%	351,900	2,774,800	$3,088,000	52%	183,000
I-15 @ I-215 Interchange (the "Fishbowl")	Las Vegas	15	6	165,600	6.6	10,100	6%	403,200	5,000	50%	200,300	1,779,100	$2,041,000	90%	180,300

Table A.4 Highway Interchange Bottlenecks for Trucks
*All High-Ranked Bottlenecks Ranked By Annual Hours of Delay for Large Trucks Making Longer Trips Greater Than 500 Miles*
Bottleneck				All Vehicles-2004		All Trucks-2004			"Large Trucks Making Longer Distance Trips"-2004
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	All Trips					Trips Greater Than 500 Miles
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	AADTT	Percent of All Trucks	Annual Hours of Delay	Annual Commodity Tons	Annual Commodity Value	Percent of Large Truck Trips	Annual Hours of Delay
I-24 @ I-440N Interchange	Chattanooga (TN-GA)	24	4	118,200	8.3	18,500	16%	927,500	9,200	50%	462,500	3,330,000	$3,750,000	85%	393,100
U.S. 95 @ I-15 Interchange ("Spaghetti Bowl")	Las Vegas	95	6	199,900	9.8	11,300	6%	670,400	5,600	50%	333,100	1,992,500	$2,286,000	90%	299,800
I-90/94 @ I-290 Interchange ("Circle Interchange")	Chicago-Northwestern IN	90	8	305,800	9.7	26,300	9%	1,544,900	9,200	35%	540,400	3,718,000	$4,218,000	53%	286,400
I-94 (Dan Ryan Expwy) @ I-90 Skyway Split (Southside)	Chicago-Northwestern IN	94	8	271,700	7.9	31,600	12%	1,512,900	11,100	35%	531,500	4,485,900	$5,089,000	53%	281,700
I-75 @ I-74 Interchange	Cincinnati (OH-KY)	75	6	193,100	9.7	19,200	10%	1,128,900	6,900	36%	405,300	2,735,200	$3,044,000	63%	255,300
I-10 @ I-110 Interchange	Baton Rouge	10	6	150,400	7.2	15,200	10%	665,000	8,600	57%	375,200	3,163,900	$3,591,000	68%	255,100
I-80/I-94 split (Southside)	Chicago-Northwestern IN	80	4	139,600	8.6	25,600	18%	1,343,600	9,000	35%	472,400	3,637,200	$4,127,000	53%	250,400
I-285 @ I-85 Interchange ("Spaghetti Junction")	Atlanta	285	8	265,300	10.0	27,100	10%	1,641,200	7,800	29%	472,600	2,943,700	$3,262,000	52%	245,800
I-17 (Black Canyon Fwy): I-10 Interchange (the "Stack") to Cactus	Phoenix	17	6	217,300	9.2	28,900	13%	1,608,500	9,000	31%	501,600	3,326,700	$3,792,000	48%	240,800
Pulaski Rd @ I-55	Chicago-Northwestern IN	55	6	197,200	7.5	28,700	15%	1,300,400	10,000	35%	453,700	4,041,300	$4,585,000	53%	240,500
I-290 @ I-355	Chicago-Northwestern IN	290	6	223,100	8.3	24,800	11%	1,246,200	8,700	35%	437,300	3,515,900	$3,989,000	53%	231,800
I-40 @ I-24 Interchange	Nashville	40	4	147,600	8.3	14,600	10%	735,200	5,800	40%	291,600	2,099,300	$2,364,000	77%	224,500
I-285 @ I-75 Interchange	Atlanta	285	6	226,300	9.6	25,700	11%	1,497,300	7,400	29%	431,500	2,792,800	$3,095,000	52%	224,400
I-35 @ Martin Luther King Jr	Austin	35	6	229,500	8.3	12,600	5%	635,000	11,200	89%	563,000	4,123,900	$4,768,000	39%	219,600
I-15 between Tropicana and Flamingo	Las Vegas	15	6	165,900	6.4	12,400	7%	486,700	6,200	50%	242,800	2,206,000	$2,530,000	90%	218,500
I-12 @ Amite River, Baton Rouge	Baton Rouge	12	4	105,000	6.4	14,400	14%	561,900	8,100	57%	317,200	2,980,000	$3,383,000	68%	215,700
I-75 @ U.S. 35 Interchange	Dayton	75	4	127,400	8.3	18,400	14%	923,100	7,900	43%	397,100	3,131,600	$3,485,000	54%	214,400
I-90 @ I-290	Buffalo-Niagara Falls	90	4	136,500	8.3	33,100	24%	1,661,900	7,300	22%	367,000	2,632,500	$2,968,000	58%	212,900
I-20 @ I-285 Interchange	Atlanta	20	6	187,200	8.3	27,000	14%	1,359,400	7,800	29%	392,100	2,943,700	$3,262,000	52%	203,900
I-75 @ I-85 Interchange	Atlanta	75	10	339,600	9.1	23,400	7%	1,288,800	6,800	29%	374,900	2,566,300	$2,844,000	52%	194,900
I-264 @ I-64 Interchange	Louisville (KY-IN)	264	6	181,100	8.3	16,400	9%	825,500	5,400	33%	271,400	1,990,200	$2,218,000	69%	187,300
I-55 (Stevenson Expwy) @ I-294 Interchange	Chicago-Northwestern IN	55	6	172,600	9.6	17,200	10%	1,001,600	6,000	35%	349,900	2,424,800	$2,751,000	53%	185,400
I-80 @ I-480 Interchange	Omaha (NE-IA)	80	5	173,600	7.9	13,800	8%	658,500	4,500	32%	215,500	1,638,000	$1,856,000	86%	185,300
I-76 @ SR 77 Interchange+J179	Akron	76	4	122,600	8.3	14,000	11%	705,200	7,000	50%	351,900	2,774,800	$3,088,000	52%	183,000
I-15 @ I-215 Interchange (the "Fishbowl")	Las Vegas	15	6	165,600	6.6	10,100	6%	403,200	5,000	50%	200,300	1,779,100	$2,041,000	90%	180,300
I-20 @ Fulton St.	Atlanta	20	6	207,300	8.1	23,700	11%	1,172,700	6,800	29%	336,500	2,566,300	$2,844,000	52%	175,000
I-77 @ Tryon Rd	Charlotte	77	6	170,500	8.3	29,600	17%	1,487,100	7,300	25%	367,000	2,700,200	$2,983,000	45%	165,200
San Bernardino Fwy	Los Angeles	10	8	268,700	7.2	34,900	13%	1,522,800	11,200	32%	488,700	4,094,500	$4,780,000	31%	151,500
SR-134 @ SR 2 Interchange	Los Angeles	134	8	247,900	8.3	29,600	12%	1,489,400	9,500	32%	477,500	3,473,000	$4,054,000	31%	148,000
Long Beach Fwy	Los Angeles	710	8	246,100	8.3	27,500	11%	1,380,300	8,800	32%	442,400	3,217,100	$3,756,000	31%	137,100
SR 60 @ I-605 Interchange	Los Angeles	60	8	233,000	8.3	26,100	11%	1,314,200	8,400	32%	422,300	3,070,900	$3,585,000	31%	130,900
I-405 (San Diego Fwy) @ I-605 Interchange	Los Angeles	405	10	331,700	9.8	20,900	6%	1,245,500	6,700	32%	398,600	2,449,400	$2,859,000	31%	123,600
San Gabriel River Fwy	Los Angeles	91	10	295,700	8.1	24,100	8%	1,194,300	7,700	32%	381,100	2,815,000	$3,286,000	31%	118,100
I-80 @ Central St.	San Francisco-Oakland	80	8	270,200	8.3	23,800	9%	1,196,700	7,800	33%	392,100	2,851,500	$3,329,000	29%	113,700
I-880 @ I-238	San Francisco-Oakland	880	8	282,700	8.3	22,000	8%	1,106,700	7,200	33%	361,900	2,632,200	$3,073,000	29%	105,000
I-93 @ I-95 Interchange	Boston	93	6	188,400	8.3	25,500	14%	1,280,100	2,800	11%	140,800	1,020,000	$1,220,000	36%	50,700

Table A.5 All Highway Interchange Bottlenecks for Trucks
*Ranked By Annual Hours of Delay for All Trucks*
Bottleneck				All Vehicles-2004		All Trucks-2004			"Large Trucks Making Longer Distance Trips"-2004
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	All Trips					Trips Greater Than 500 Miles
Location	Urban Area	Critically Congested Route No.	No. of Lanes	AADT	Daily Minutes of Delay per Vehicle	AADTT	Percent of All Vehicles	Annual Hours of Delay All Trucks	AADTT	Percent of All Trucks	Annual Hours of Delay	Annual Commodity Tons	Annual Commodity Value	Percent of Large Truck Trips	Annual Hours of Delay
I-90 @ I-290	Buffalo-Niagara Falls	90	4	136,500	8.3	33,100	24%	1,661,900	7,300	22%	367,000	2,632,500	$2,968,000	58%	212,900
I-285 @ I-85 Interchange ("Spaghetti Junction")	Atlanta	285	8	265,300	10.0	27,100	10%	1,641,200	7,800	29%	472,600	2,943,700	$3,262,000	52%	245,800
I-17 (Black Canyon Fwy): I-10 Interchange (the "Stack") to Cactus	Phoenix	17	6	217,300	9.2	28,900	13%	1,608,500	9,000	31%	501,600	3,326,700	$3,792,000	48%	240,800
I-90/94 @ I-290 Interchange ("Circle Interchange")	Chicago-Northwestern IN	90	8	305,800	9.7	26,300	9%	1,544,900	9,200	35%	540,400	3,718,000	$4,218,000	53%	286,400
San Bernardino Fwy	Los Angeles	10	8	268,700	7.2	34,900	13%	1,522,800	11,200	32%	488,700	4,094,500	$4,780,000	31%	151,500
I-94 (Dan Ryan Expwy) @ I-90 Skyway Split (Southside)	Chicago-Northwestern IN	94	8	271,700	7.9	31,600	12%	1,512,900	11,100	35%	531,500	4,485,900	$5,089,000	53%	281,700
I-285 @ I-75 Interchange	Atlanta	285	6	226,300	9.6	25,700	11%	1,497,300	7,400	29%	431,500	2,792,800	$3,095,000	52%	224,400
SR 134 @ SR 2 Interchange	Los Angeles	134	8	247,900	8.3	29,600	12%	1,489,400	9,500	32%	477,500	3,473,000	$4,054,000	31%	148,000
I-77 @ Tryon Rd	Charlotte	77	6	170,500	8.3	29,600	17%	1,487,100	7,300	25%	367,000	2,700,200	$2,983,000	45%	165,200
Long Beach Fwy	Los Angeles	710	8	246,100	8.3	27,500	11%	1,380,300	8,800	32%	442,400	3,217,100	$3,756,000	31%	137,100
I-20 @ I-285 Interchange	Atlanta	20	6	187,200	8.3	27,000	14%	1,359,400	7,800	29%	392,100	2,943,700	$3,262,000	52%	203,900
I-80/I-94 split (Southside)	Chicago-Northwestern IN	80	4	139,600	8.6	25,600	18%	1,343,600	9,000	35%	472,400	3,637,200	$4,127,000	53%	250,400
SR 60 @ I-605 Interchange	Los Angeles	60	8	233,000	8.3	26,100	11%	1,314,200	8,400	32%	422,300	3,070,900	$3,585,000	31%	130,900
Pulaski Rd @ I-55	Chicago-Northwestern IN	55	6	197,200	7.5	28,700	15%	1,300,400	10,000	35%	453,700	4,041,300	$4,585,000	53%	240,500
I-75 @ I-85 Interchange	Atlanta	75	10	339,600	9.1	23,400	7%	1,288,800	6,800	29%	374,900	2,566,300	$2,844,000	52%	194,900
I-93 @ I-95 Interchange	Boston	93	6	188,400	8.3	25,500	14%	1,280,100	2,800	11%	140,800	1,020,000	$1,220,000	36%	50,700
I-290 @ I-355	Chicago-Northwestern IN	290	6	223,100	8.3	24,800	11%	1,246,200	8,700	35%	437,300	3,515,900	$3,989,000	53%	231,800
I-405 (San Diego Fwy) @ I-605 Interchange	Los Angeles	405	10	331,700	9.8	20,900	6%	1,245,500	6,700	32%	398,600	2,449,400	$2,859,000	31%	123,600
I-80 @ Central St.	San Francisco-Oakland	80	8	270,200	8.3	23,800	9%	1,196,700	7,800	33%	392,100	2,851,500	$3,329,000	29%	113,700
San Gabriel River Fwy	Los Angeles	91	10	295,700	8.1	24,100	8%	1,194,300	7,700	32%	381,100	2,815,000	$3,286,000	31%	118,100
I-20 @ Fulton St.	Atlanta	20	6	207,300	8.1	23,700	11%	1,172,700	6,800	29%	336,500	2,566,300	$2,844,000	52%	175,000
I-75 @ I-74 Interchange	Cincinnati (OH-KY)	75	6	193,100	9.7	19,200	10%	1,128,900	6,900	36%	405,300	2,735,200	$3,044,000	63%	255,300
I-880 @ I-238	San Francisco-Oakland	880	8	282,700	8.3	22,000	8%	1,106,700	7,200	33%	361,900	2,632,200	$3,073,000	29%	105,000
SR 315 @ I-70 Interchange	Columbus	315	2	64,000	8.3	21,800	34%	1,097,600	5,500	25%	276,500	2,180,200	$2,426,000	14%	38,700
Columbia Rd @ I-93	Boston	93	6	189,300	6.4	27,600	15%	1,081,800	3,000	11%	117,500	1,092,900	$1,307,000	36%	42,300
I-270 @ I-70 Interchange (West)	Columbus	270	4	122,600	9.5	18,600	15%	1,077,800	4,700	25%	271,900	1,863,100	$2,073,000	14%	38,100
SR 91 @ I-215 Interchange	Riverside-San Bernardino	91	10	276,500	6.7	26,100	9%	1,067,600	8,000	31%	327,700	2,924,600	$3,414,000	34%	111,400
I-710 @ Whittier Blvd	Los Angeles	60	8	257,500	5.5	31,500	12%	1,059,700	10,100	32%	340,200	3,692,300	$4,310,000	31%	105,500
Loop-202: Dobson to I-10	Phoenix	202	8	228,000	7.5	23,300	10%	1,055,700	7,200	31%	326,700	2,661,300	$3,033,000	48%	156,800
Worcester Rd @ I-95	Boston	95	6	173,600	8.1	21,000	12%	1,041,800	2,300	11%	113,800	837,900	$1,002,000	36%	41,000
I-10 @ SR 51/SR 202 Interchange ("Mini-Stack")	Phoenix	10	8	293,000	7.9	21,700	7%	1,038,000	6,700	31%	320,800	2,476,500	$2,823,000	48%	154,000
Orange Fwy	Los Angeles	91	7	244,200	8.0	21,100	9%	1,029,700	6,800	32%	331,100	2,485,900	$2,902,000	31%	102,600
I-495 @ I-95 Interchange (MD)	Washington (DC-MD-VA)	95	5	193,100	9.7	17,300	9%	1,020,100	2,400	14%	141,900	880,600	$978,000	53%	75,200
I-95 @ I-595 Interchange	Miami-Hialeah	95	9	308,500	8.3	20,100	7%	1,011,400	3,900	20%	196,000	1,467,900	$1,657,000	50%	98,000
I-55 (Stevenson Expwy) @ I-294 Interchange	Chicago-Northwestern IN	55	6	172,600	9.6	17,200	10%	1,001,600	6,000	35%	349,900	2,424,800	$2,751,000	53%	185,400
I-10 @ I-17 Interchange West (the "Stack")	Phoenix	10	8	238,800	8.4	19,300	8%	982,600	6,000	31%	306,200	2,217,800	$2,528,000	48%	147,000
I-76 @ Girard Ave	Philadelphia (PA-NJ)	76	6	200,400	7.3	22,100	11%	982,200	5,600	26%	249,200	2,133,600	$2,397,000	26%	64,800
I-71 @ I-70 Interchange	Columbus	71	3	112,500	8.3	19,300	17%	968,800	4,900	25%	246,300	1,942,400	$2,162,000	14%	34,500
SR 91 @ I-215 Interchange	Riverside-San Bernardino	91	10	275,500	6.7	23,600	9%	966,900	7,300	31%	299,000	2,668,700	$3,115,000	34%	101,700
Darby Paoli Rd @ U.S. 202	Philadelphia (PA-NJ)	202	4	114,200	8.3	18,900	17%	950,600	4,800	26%	241,300	1,828,800	$2,055,000	26%	62,700
U.S. 57 @ U.S. 91	Los Angeles	57	10	291,000	7.9	19,800	7%	946,900	6,300	32%	301,700	2,303,100	$2,689,000	31%	93,500
I-24 @ I-440N Interchange	Chattanooga (TN-GA)	24	4	118,200	8.3	18,500	16%	927,500	9,200	50%	462,500	3,330,000	$3,750,000	85%	393,100
I-75 @ U.S. 35 Interchange	Dayton	75	4	127,400	8.3	18,400	14%	923,100	7,900	43%	397,100	3,131,600	$3,485,000	54%	214,400
I-110 @ Saulson Ave	Los Angeles	110	10	333,500	8.3	18,100	5%	910,000	5,800	32%	291,600	2,120,400	$2,475,000	31%	90,400
I-5 (San Diego Fwy) @ I-405 Interchange ("El Toro")	Los Angeles	5	11	371,500	7.0	20,800	6%	887,600	6,700	32%	286,400	2,449,400	$2,859,000	31%	88,800
I-495 @ I-270 Interchange	Washington (DC-MD-VA)	495	7	253,700	8.6	16,800	7%	884,100	2,400	14%	126,000	880,600	$978,000	53%	66,800
I-70 @ I-25 Interchange ("Mousetrap")	Denver	70	4	157,300	8.3	17,100	11%	859,200	2,900	17%	145,800	1,099,000	$1,243,000	67%	97,700
U.S. 101 (Ventura Fwy) @ I-405 Interchange	Los Angeles	101	10	331,300	9.8	14,400	4%	855,600	4,600	32%	273,700	1,681,700	$1,963,000	31%	84,800
I-70 @ U.S. 23 Interchange	Columbus	70	5	163,900	8.3	16,700	10%	839,100	4,200	25%	211,100	1,664,900	$1,853,000	14%	29,600
I-264 @ I-64 Interchange	Louisville (KY-IN)	264	6	181,100	8.3	16,400	9%	825,500	5,400	33%	271,400	1,990,200	$2,218,000	69%	187,300
I-35W @ SR 62 Interchange	Minneapolis-St. Paul	35	6	183,300	10.0	13,500	7%	815,600	4,400	33%	266,600	1,634,500	$1,866,000	58%	154,600
I-610 @ I-10 Interchange (West)	Houston	610	8	307,700	9.3	14,200	5%	808,500	5,600	40%	318,400	2,062,000	$2,384,000	44%	140,100
I-405 (San Diego Fwy) @ I-10 Interchange	Los Angeles	405	10	308,500	10.0	12,900	4%	784,300	4,100	32%	248,400	1,498,900	$1,750,000	31%	77,000
I-40 @ I-24 Interchange	Nashville	40	4	147,600	8.3	14,600	10%	735,200	5,800	40%	291,600	2,099,300	$2,364,000	77%	224,500
I-57 @ 12th St.	Chicago-Northwestern IN	57	6	174,200	3.8	31,600	18%	733,800	11,100	35%	257,600	4,485,900	$5,089,000	53%	136,500
I-5 (Santa Ana Fwy) @ SR 22/SR 57 Interchange ("Orange Crush")	Los Angeles	5	10	321,300	6.0	19,900	6%	726,400	6,400	32%	233,100	2,339,700	$2,731,000	31%	72,300
I-70 @ U.S. 67 Interchange	St. Louis (MO-IL)	70	6	177,100	8.3	14,400	8%	721,500	3,100	21%	155,800	1,148,000	$1,303,000	75%	116,900
I-76 @ SR 77 Interchange+J179	Akron	76	4	122,600	8.3	14,000	11%	705,200	7,000	50%	351,900	2,774,800	$3,088,000	52%	183,000
I-105 @ U.S. 107 Interchange	Los Angeles	105	8	240,200	8.1	14,200	6%	702,100	4,500	32%	222,700	1,645,100	$1,920,000	31%	69,000
Southern State Parkway @ Exit 25A	New York-Northeastern NJ	908	6	204,500	5.4	21,400	10%	699,800	6,200	29%	203,200	2,235,800	$2,521,000	27%	54,900
U.S. 101 @ I-280 Interchange	San Francisco-Oakland	101	8	261,600	8.3	13,400	5%	673,400	4,400	33%	221,200	1,608,500	$1,878,000	29%	64,100
U.S. 95 @ I-15 Interchange ("Spaghetti Bowl")	Las Vegas	95	6	199,900	9.8	11,300	6%	670,400	5,600	50%	333,100	1,992,500	$2,286,000	90%	299,800
U.S. 101 @ I-880 Interchange	San Jose	101	8	254,500	9.3	11,900	5%	669,000	2,700	23%	152,000	987,100	$1,152,000	16%	24,300
I-10 @ I-110 Interchange	Baton Rouge	10	6	150,400	7.2	15,200	10%	665,000	8,600	57%	375,200	3,163,900	$3,591,000	68%	255,100
U.S. 101 @ SR 92 Interchange	San Francisco-Oakland	101	8	263,600	8.3	13,200	5%	663,800	4,300	33%	216,200	1,572,000	$1,835,000	29%	62,700
I-75 @ I-275 Interchange	Cincinnati (OH-KY)	75	6	174,800	4.7	23,400	13%	662,900	8,400	36%	237,800	3,095,900	$3,451,000	63%	149,800
Between I-25 and Paseo Del Norte	Albuquerque	40	4	157,100	8.3	13,200	8%	662,600	2,500	19%	125,700	974,500	$1,100,000	91%	114,400
I-80 @ I-480 Interchange	Omaha (NE-IA)	80	5	173,600	7.9	13,800	8%	658,500	4,500	32%	215,500	1,638,000	$1,856,000	86%	185,300
I-278 @ Exit 36	New York-Northeastern NJ	278	6	210,000	7.7	13,900	7%	654,600	4,000	29%	188,200	1,442,500	$1,626,000	27%	50,800
Pomona Fwy: SR 91 Interchange	Riverside-San Bernardino	215	6	175,300	7.7	13,900	8%	653,800	4,300	31%	202,400	1,572,000	$1,835,000	34%	68,800
I-5: Interstate Bridge and bridge influence area	Portland-Vancouver (OR-WA)	5	4	109,900	8.7	12,100	11%	644,200	4,100	34%	218,100	1,484,600	$1,716,000	33%	72,000
U.S. 1 @ I-95 Interchange	Philadelphia (PA-NJ)	95	8	207,800	5.7	18,600	9%	643,900	4,700	26%	162,600	1,742,100	$1,938,000	26%	42,300
I-94 @ I-75 Interchange	Detroit	94	6	167,200	6.9	15,400	9%	643,700	4,400	29%	184,200	1,597,400	$1,795,000	32%	58,900
SR 167 SB @ 15th St. in Auburn	Seattle	167	5	121,800	9.4	11,100	9%	638,900	2,700	24%	154,900	990,000	$1,119,000	15%	23,200
I-5 @ SR 56 Interchange	San Diego	5	8	234,200	7.7	13,500	6%	635,100	3,600	27%	169,400	1,316,100	$1,536,000	16%	27,100
I-35 @ Martin Luther King Jr	Austin	35	6	229,500	8.3	12,600	5%	635,000	11,200	89%	563,000	4,123,900	$4,768,000	39%	219,600
I-695: Between I-70 and I-95	Baltimore	695	6	180,800	8.4	12,100	7%	616,800	2,700	22%	137,800	990,600	$1,101,000	49%	67,500
U.S. 87 @ U.S. 36	Denver	25	7	247,700	8.0	12,600	5%	614,100	2,100	17%	102,300	795,800	$900,000	67%	68,500
I-90 @ I-94 Interchange ("Edens Interchange")	Chicago-Northwestern IN	90	6	189,700	8.3	11,900	6%	596,300	4,200	35%	211,100	1,697,300	$1,926,000	53%	111,900
I-10 @ U.S. 17A Interchange	Jacksonville	10	4	141,500	8.3	11,800	8%	595,200	1,800	15%	90,500	677,500	$765,000	29%	26,200
I-278 (Staten Island Expwy) before Verrazano Br	New York-Northeastern NJ	278	6	204,400	7.3	13,300	7%	593,400	3,900	29%	173,600	1,406,400	$1,586,000	27%	46,900
I-66 @ I-495 (Capitol Beltway) Interchange	Washington (DC-MD-VA)	66	6	188,500	8.3	11,700	6%	588,500	1,600	14%	80,400	580,700	$645,000	53%	42,600
I-15 @ SR 78 Interchange (Escondido)	San Diego	15	8	211,900	6.0	15,500	7%	566,200	4,100	27%	149,300	1,498,900	$1,750,000	16%	23,900
I-64 @ I-264 Interchange	Norfolk (036)-Virginia Beach-Newport	64	5	150,000	8.4	11,000	7%	563,700	2,400	22%	122,500	871,100	$967,000	22%	27,000
Centreville Rd @ I-66	Washington (DC-MD-VA)	66	6	196,000	8.3	11,200	6%	563,500	1,600	14%	80,400	580,700	$645,000	53%	42,600
I-12 @ Amite River, Baton Rouge	Baton Rouge	12	4	105,000	6.4	14,400	14%	561,900	8,100	57%	317,200	2,980,000	$3,383,000	68%	215,700
I-95 @ Chestnut St.	Philadelphia (PA-NJ)	95	6	177,000	4.7	19,600	11%	553,900	5,000	26%	141,500	1,905,000	$2,141,000	26%	36,800
I-91 @ U.S. 1 Interchange	New Haven (064)-Meriden (212)	91	3	97,400	7.0	12,900	13%	550,100	4,200	33%	179,600	1,550,900	$1,741,000	35%	62,900
I-275 @ I-4 Interchange ("Malfunction Junction")	Tampa (059)-St. Petersburg(057)-Clearwater	275	6	210,100	7.7	11,500	5%	540,500	2,500	22%	117,600	941,000	$1,062,000	38%	44,700
I-15 @ I-215 Interchange	Salt Lake City	15	6	187,400	8.3	10,600	6%	535,100	4,800	45%	241,300	1,744,700	$1,985,000	59%	142,400
I-96 @ Jct I-275	Detroit	96	8	202,000	9.9	8,700	4%	527,200	2,500	29%	150,900	907,600	$1,020,000	32%	48,300
I-678 @ SR 27 Interchange (JFK)	New York-Northeastern NJ	678	4	140,900	8.3	10,500	7%	526,300	3,100	29%	155,800	1,117,900	$1,260,000	27%	42,100
I-95 Between I-895 and SR 43	Baltimore	95	8	194,200	4.4	19,800	10%	525,100	4,400	22%	116,900	1,614,400	$1,794,000	49%	57,300
I-355 @ I-55	Chicago-Northwestern IN	355	3	91,100	4.5	19,100	21%	523,100	6,700	35%	183,800	2,707,700	$3,072,000	53%	97,400
SR 400 @ I-285 Interchange	Atlanta	400	6	223,600	3.3	25,700	11%	514,800	7,400	29%	148,300	2,792,800	$3,095,000	52%	77,100
U.S. 75 @ Lemmon Ave.	Dallas-Fort Worth	75	6	194,400	8.3	10,200	5%	511,600	2,700	26%	135,700	994,200	$1,149,000	54%	73,300
Garden State Parkway @ I-78	New York-Northeastern NJ	GSPW	6	201,500	7.9	10,600	5%	509,800	3,100	29%	148,400	1,132,300	$1,266,000	27%	40,100
I-494 @ I-35W Interchange	Minneapolis-St. Paul	494	6	160,800	6.0	14,000	9%	508,800	4,600	33%	167,500	1,708,800	$1,951,000	58%	97,200
I-95 @ Golden Glades Interchange	Miami-Hialeah	95	6	187,100	3.6	23,600	13%	508,800	4,600	20%	99,400	1,731,400	$1,954,000	50%	49,700
I-10 @ I-610 Interchange	New Orleans	10	5	159,500	6.1	13,600	9%	508,700	2,800	21%	104,500	1,030,100	$1,169,000	39%	40,800
I-95 @ U.S. 7 Interchange	Bridgeport-Milford	95	6	151,900	5.2	15,900	10%	506,000	5,100	32%	162,500	1,883,200	$2,114,000	30%	48,800
I-275 Between I-74 and SR 126	Cincinnati (OH-KY)	275	4	117,700	8.0	10,400	9%	504,700	3,700	36%	180,200	1,466,700	$1,632,000	63%	113,500
I-84 @ U.S. 30 Interchange	Portland-Vancouver (OR-WA)	84	6	184,300	8.3	10,000	5%	503,500	3,400	34%	170,900	1,231,200	$1,423,000	33%	56,400
I-83 @ I-695 Interchange	Baltimore	SL1	5	159,300	5.7	14,300	9%	496,400	3,100	22%	107,200	1,137,400	$1,264,000	49%	52,500
I-205 @ Powell Blvd	Portland-Vancouver (OR-WA)	205	6	175,700	7.7	10,500	6%	496,200	3,500	34%	164,700	1,267,400	$1,465,000	33%	54,400
I-495 (Long Island Expwy) @ Exit 33	New York-Northeastern NJ	495	6	211,500	7.7	10,400	5%	491,600	3,000	29%	141,200	1,081,800	$1,220,000	27%	38,100
Mission Valley Fwy	San Diego	8	9	258,600	8.3	9,700	4%	489,800	2,600	27%	130,700	950,500	$1,110,000	16%	20,900
I-15 between Tropicana and Flamingo	Las Vegas	15	6	165,900	6.4	12,400	7%	486,700	6,200	50%	242,800	2,206,000	$2,530,000	90%	218,500
I-695 @ I-70 Interchange	Baltimore	695	7	228,700	6.3	12,400	5%	473,100	2,700	22%	103,300	990,600	$1,101,000	49%	50,600
7 Mile Rd @ I-75	Detroit	75	6	179,400	4.9	15,500	9%	467,200	4,400	29%	132,300	1,597,400	$1,795,000	32%	42,300
I-440S @ U.S. 431	Nashville	440	4	115,800	7.7	9,900	9%	465,500	3,900	40%	183,500	1,411,600	$1,590,000	77%	141,300
I-805 @ I-15 Interchange	San Diego	805	8	248,200	8.6	8,900	4%	464,500	2,400	27%	126,000	877,400	$1,024,000	16%	20,200
I-95 @ I--87 Interchange	New York-Northeastern NJ	95	6	181,600	8.3	9,200	5%	461,800	2,700	29%	135,700	973,700	$1,098,000	27%	36,600
I-280 @ U.S. 1 Interchange	San Francisco-Oakland	280	8	230,800	3.6	21,300	9%	460,500	7,000	33%	151,200	2,559,000	$2,987,000	29%	43,800
I-5 NB @ SR 526 in Everett	Seattle	5	6	153,500	6.0	12,600	8%	457,200	3,000	24%	109,300	1,100,000	$1,243,000	15%	16,400
I-95 @ I-195 Interchange	Providence-Pawtucket (RI-MA)	95	8	267,200	6.7	11,100	4%	455,300	600	5%	24,600	224,300	$255,000	28%	6,900
I-45 @ I-610 Interchange	Houston	45	8	277,700	7.5	10,000	4%	452,300	4,000	40%	181,500	1,472,800	$1,703,000	44%	79,900
I-10 @ I-17 Interchange West (the "Stack")	Phoenix	10	8	239,000	4.7	15,800	7%	448,000	4,900	31%	138,700	1,811,200	$2,064,000	48%	66,600
I-10 (Santa Monica Fwy) @ I-5 Interchange	Los Angeles	10	10	323,000	5.8	12,500	4%	445,500	4,000	32%	142,000	1,462,300	$1,707,000	31%	44,000
I-95 @ SR 9A (Westside Hwy)	New York-Northeastern NJ	95	9	310,300	7.2	10,200	3%	445,200	3,000	29%	130,900	1,081,800	$1,220,000	27%	35,300
U.S. 60 (Superstition Fwy): Loop-101 to I-10	Phoenix	60	6	174,100	2.9	24,600	14%	439,000	7,700	31%	137,200	2,846,200	$3,244,000	48%	65,900
I-77 @ SR 8 Interchange	Akron	77	4	130,900	8.3	8,700	7%	438,000	4,400	50%	221,200	1,744,200	$1,941,000	52%	115,000
I-95 @ I-476 Interchange	Philadelphia (PA-NJ)	95	5	153,400	5.1	14,100	9%	437,200	3,600	26%	111,500	1,371,600	$1,541,000	26%	29,000
I-70 @ I-435 Interchange	Kansas City (MO-KS)	70	4	116,700	8.3	8,600	7%	433,300	4,600	54%	231,200	1,703,500	$1,933,000	64%	148,000
I-84 @ SR 2 Interchange ("Mixmaster East")	Hartford-Middletown	84	5	123,800	6.7	10,600	9%	433,000	2,500	24%	102,400	923,200	$1,036,000	66%	67,600
Harding Pl @ I-24	Nashville	24	4	138,300	7.6	9,300	7%	431,200	3,700	40%	171,000	1,339,200	$1,508,000	77%	131,700
Florida Turnpike @ I-595	Miami-Hialeah	595	6	187,400	8.3	8,500	5%	426,100	1,700	20%	85,500	639,900	$722,000	50%	42,800
I-278 (BQE) @ I-495 Interchange	New York-Northeastern NJ	278	6	209,800	7.6	9,100	4%	422,500	2,600	29%	120,200	937,600	$1,057,000	27%	32,500
I-696 @ Jct I-75	Detroit	696	8	222,800	6.6	10,500	5%	418,900	3,000	29%	120,200	1,089,100	$1,224,000	32%	38,500
I-10 @ I-410 Loop North Interchange	San Antonio	10	5	166,400	6.7	10,200	6%	418,300	1,800	18%	73,700	662,800	$766,000	41%	30,200
I-55 from Naperville to Weber	Chicago-Northwestern IN	55	4	108,600	7.0	9,500	9%	405,900	3,300	35%	141,100	1,333,600	$1,513,000	53%	74,800
I-15 @I-215 Interchange (the "Fishbowl")	Las Vegas	15	6	165,600	6.6	10,100	6%	403,200	5,000	50%	200,300	1,779,100	$2,041,000	90%	180,300
I-580 MP 17-19	San Francisco-Oakland	580	8	197,300	4.4	15,000	8%	398,300	4,900	33%	130,200	1,791,300	$2,091,000	29%	37,800
I-495 (Long Island Expwy) @ Grand Ave.	New York-Northeastern NJ	495	7	232,600	6.3	10,200	4%	390,600	3,000	29%	114,700	1,081,800	$1,220,000	27%	31,000
I-5 @ I-90 Interchange	Seattle	5	10	313,800	5.2	12,200	4%	387,300	2,900	24%	92,400	1,063,300	$1,201,000	15%	13,900
I-45 (Gulf Fwy) @ U.S. 59 Interchange	Houston	45	8	260,800	6.0	10,600	4%	386,900	4,200	40%	153,000	1,546,500	$1,788,000	44%	67,300
I-75 @ I-280 Interchange	Toledo (OH-MI)	75	3	90,700	4.0	16,000	18%	384,200	6,000	38%	144,200	2,378,400	$2,647,000	40%	57,700
I-80 @ I-294 Interchange	Chicago-Northwestern IN	80	6	137,600	3.8	16,400	12%	380,700	5,700	35%	132,300	2,303,500	$2,614,000	53%	70,100
I-64 @ I-65/I-71 Interchange ("Spaghetti Junction")	Louisville (KY-IN)	64	4	123,500	8.3	7,500	6%	375,900	2,500	33%	125,700	921,400	$1,027,000	69%	86,700
I-475 - 9.63-14.66	Toledo (OH-MI)	475	4	102,900	5.5	11,000	11%	371,800	4,100	38%	138,100	1,625,300	$1,809,000	40%	55,200
I-287 @ SR 24	New York-Northeastern NJ	287	3	102,800	7.2	8,500	8%	370,100	2,500	29%	109,100	913,100	$1,021,000	27%	29,500
I-95 - Woodrow Wilson Bridge	Washington (DC-MD-VA)	95	7	205,400	4.8	12,500	6%	364,100	1,800	14%	52,500	653,300	$725,000	53%	27,800
I-238 @ I-550	San Francisco-Oakland	238	4	121,000	5.1	11,700	10%	363,600	3,800	33%	117,700	1,389,200	$1,622,000	29%	34,100
I-75 @ Jct M-8	Detroit	75	8	193,500	3.8	15,500	8%	360,500	4,400	29%	102,100	1,597,400	$1,795,000	32%	32,700
I-590 @ I-490/SR 590 Interchange "Can of Worms")	Rochester	590	4	114,300	8.3	7,000	6%	352,800	1,700	24%	85,500	613,000	$691,000	20%	17,100
U.S. 45 @ I-94/I-894 Interchange (the "Zoo")	Milwaukee	45	4	149,000	4.5	12,700	9%	347,300	4,900	39%	134,400	1,792,200	$2,007,000	33%	44,400
I-85 @ SR 7	Gastonia	85	4	115,700	7.7	7,400	6%	346,500	3,700	51%	174,100	1,368,600	$1,512,000	43%	74,900
I-35 @ Loop 410 Interchange	San Antonio	35	6	170,200	3.8	14,600	9%	338,600	2,600	18%	60,300	957,300	$1,107,000	41%	24,700
SR 99 @ Stockton Blvd	Sacramento	99	6	179,600	2.8	19,500	11%	333,900	8,600	44%	147,100	3,144,000	$3,670,000	63%	92,700
I-494 @ I-394 Interchange	Minneapolis-St. Paul	494	4	100,500	6.6	8,200	8%	329,500	2,700	33%	108,200	1,003,000	$1,145,000	58%	62,800
Loop-101 Agua Fria: 67th Ave to I-17	Phoenix	101	4	113,400	4.1	13,200	12%	329,000	4,100	31%	102,000	1,515,500	$1,727,000	48%	49,000
Loop-101 Agua Fria: 67th Ave to I-17	Phoenix	101	4	113,400	4.1	13,200	12%	329,000	4,100	31%	102,000	1,515,500	$1,727,000	48%	49,000
U.S. 59 @ SR 6 Interchange	Houston	59	4	154,000	4.7	11,600	8%	328,600	4,600	40%	130,200	1,693,800	$1,958,000	44%	57,300
I-405 in Downtown Bellevue	Seattle	405	8	209,200	8.9	6,000	3%	324,700	1,400	24%	75,400	513,300	$580,000	15%	11,300
SR 288 @ U.S. 59	Houston	288	5	163,800	6.3	8,100	5%	309,200	3,200	40%	122,400	1,178,300	$1,362,000	44%	53,900
FDR Drive south of Triborough Bridge	New York-Northeastern NJ	907	6	170,000	3.7	13,700	8%	307,400	4,000	29%	89,600	1,442,500	$1,626,000	27%	24,200
U.S. 202 @ U.S. 422	Philadelphia (PA-NJ)	202	4	123,400	5.2	9,500	8%	301,300	2,400	26%	76,500	914,400	$1,027,000	26%	19,900
I-75 @ I-696 Interchange	Detroit	75	6	184,500	3.2	15,600	8%	300,600	4,500	29%	86,800	1,633,700	$1,836,000	32%	27,800
I-80 @ Garden State Pkwy	New York-Northeastern NJ	80	4	125,700	5.5	8,700	7%	293,600	2,500	29%	84,200	913,100	$1,021,000	27%	22,700
I-95 @ Route 4 Interchange	Providence-Pawtucket RI-MA)	95	8	181,100	2.9	16,400	9%	292,300	900	5%	16,000	336,500	$383,000	28%	4,500
Northern State Parkway @ Exit 36A	New York-Northeastern NJ	908	4	116,500	4.4	10,900	9%	288,900	3,200	29%	85,000	1,154,000	$1,301,000	27%	23,000
I-271 @ I-480 Interchange	Cleveland	271	5	144,600	7.5	6,300	4%	286,900	3,100	49%	140,600	1,228,900	$1,368,000	49%	68,900
I-15 @ I-80 Interchange	Salt Lake City	15	6	203,400	7.7	6,000	3%	283,100	2,700	45%	127,100	981,400	$1,116,000	59%	75,000
I-480 Between SR 10 and SR 17	Cleveland	480	4	105,700	5.5	8,300	8%	279,800	4,100	49%	138,100	1,625,300	$1,809,000	49%	67,700
I-76 @ Walnut La	Philadelphia (PA-NJ)	76	4	129,800	2.7	17,000	13%	278,500	4,300	26%	70,500	1,638,300	$1,841,000	26%	18,300
I-64 @ I-264 Interchange	Washington (DC-MD-VA)	64	5	145,200	4.1	11,000	8%	274,700	1,500	14%	37,300	544,400	$604,000	53%	19,800
I-90 @ I-87 Interchange	Albany-Schenectady-Troy	90	4	118,200	7.9	5,600	5%	269,300	3,000	53%	143,700	1,081,800	$1,220,000	23%	33,100
SR 183 @ SR 360	Dallas-Fort Worth	360	4	151,000	8.3	5,300	4%	268,900	1,400	26%	70,400	515,500	$596,000	54%	38,000
I-35W @ SH 121 Interchange	Dallas-Fort Worth	35	4	106,300	5.8	7,500	7%	267,100	2,000	26%	71,000	736,400	$851,000	54%	38,300
M 39 @ M 5 Interchange	Detroit	39	6	184,500	8.3	5,300	3%	264,800	1,500	29%	75,400	544,600	$612,000	32%	24,100
I-4 @ SR 408 Interchange (East/West toll)	Orlando	4	6	190,600	9.0	4,900	3%	264,500	1,700	34%	92,700	639,900	$722,000	20%	18,500
I-880 @ SR 237 Interchange	San Jose	880	6	192,000	3.7	11,700	6%	262,700	2,600	23%	58,200	950,500	$1,110,000	16%	9,300
I-64 @ I-95 Interchange	Richmond	64	3	101,500	7.0	5,900	6%	254,000	2,900	48%	124,000	1,052,600	$1,168,000	40%	49,600
SR 562 @ I-75 Interchange	Cincinnati (OH-KY)	562	2	71,900	8.3	4,900	7%	244,900	1,800	36%	90,500	713,500	$794,000	63%	57,000
I-10 @ I-110/U.S. 54 Interchange	El Paso (TX-NM)	10	7	209,600	4.4	9,100	4%	241,800	2,100	23%	55,800	773,200	$894,000	97%	54,100
SR 4 @ Willow Pass Rd	Antioch-Pittsburgh	4	4	129,400	6.3	6,300	5%	241,200	2,200	35%	84,100	804,300	$939,000	39%	32,800
I-95 @ SR 3	New York-Northeastern NJ	95	10	305,400	2.3	17,100	6%	235,800	5,000	29%	68,900	1,826,200	$2,042,000	27%	18,600
I-35 @ Loop 410 Interchange	San Antonio	35	6	167,800	3.0	12,700	8%	235,300	2,200	18%	40,800	810,100	$937,000	41%	16,700
M 39 @ Jct M-5	Detroit	39	6	184,300	8.4	4,500	2%	230,900	1,300	29%	66,300	472,000	$530,000	32%	21,200
I-94 @ I-35E Interchange ("Spaghetti Bowl")	Minneapolis-St. Paul	94	6	166,300	3.3	11,500	7%	230,300	3,700	33%	74,200	1,374,500	$1,569,000	58%	43,000
I-71 @ I-75 Interchange	Cincinnati (OH-KY)	71	4	139,000	3.6	10,600	8%	229,900	3,800	36%	82,100	1,506,300	$1,676,000	63%	51,700
Sunset Highway @ Murray Blvd	Portland-Vancouver (OR-WA)	26	4	125,400	3.4	11,000	9%	229,600	3,700	34%	77,000	1,339,800	$1,549,000	33%	25,400
Roosevelt Rd @ I-355	Chicago-Northwestern IN	355	4	130,500	8.3	4,600	4%	229,100	1,600	35%	80,400	646,600	$734,000	53%	42,600
SR 80 @ U.S. 101 Interchange	San Francisco-Oakland	80	8	227,400	2.7	13,900	6%	228,800	4,600	33%	75,500	1,681,700	$1,963,000	29%	21,900
SR 1 @ SR 17 Interchange	Santa Cruz	1	4	114,700	7.2	5,100	4%	221,000	1,100	23%	48,000	402,100	$469,000	16%	7,700
I-94 @ I-35W Interchange	Minneapolis-St. Paul	94	6	165,400	3.2	11,300	7%	217,700	3,700	33%	71,400	1,374,500	$1,569,000	58%	41,400
I-35E @ I-30 Interchange ("Mixmaster")	Dallas-Fort Worth	35	6	190,000	5.4	6,600	3%	217,100	1,700	26%	55,700	626,000	$724,000	54%	30,100
Balt/Wash Pkwy: I-495/I-95 to Powder Mill Rd	Washington (DC-MD-VA)	295	4	110,400	8.3	4,200	4%	211,000	600	14%	30,200	220,100	$245,000	53%	16,000
I-664 @ U.S. 13 Interchange	Norfolk Virginia Beach-Newport News	664	4	130,800	6.0	5,400	4%	196,900	1,200	22%	43,700	435,600	$483,000	22%	9,600
I-225 @ U.S. 87 Interchange	Denver	225	4	117,000	3.3	9,700	8%	193,700	1,600	17%	32,100	606,300	$686,000	67%	21,500
I-376 @ Centreville Rd	Pittsburgh	376	4	116,100	3.3	9,500	8%	189,800	3,300	35%	66,100	1,257,300	$1,413,000	39%	25,800
I-55 @ I-294 Interchange	Chicago-Northwestern IN	55	6	173,400	8.3	3,600	2%	180,100	1,300	35%	65,300	525,400	$596,000	53%	34,600
Balt/Wash Pkwy @ I-495/I-95 Interchange	Washington (DC-MD-VA)	295	4	111,700	7.2	4,100	4%	178,900	600	14%	26,200	220,100	$245,000	53%	13,900
U.S. 50 @ I-75 Interchange	Cincinnati (OH-KY)	50	3	93,800	3.7	7,900	8%	177,300	2,800	36%	62,700	1,109,900	$1,235,000	63%	39,500
U.S. 169 @ I-394 Interchange	Minneapolis-St. Paul	169	4	106,200	5.5	5,300	5%	177,100	1,700	33%	57,300	631,500	$721,000	58%	33,200
SR 121 @ I-820	Dallas-Fort Worth	820	5	160,300	5.5	5,200	3%	174,500	1,400	26%	47,200	515,500	$596,000	54%	25,500
I-680 @ U.S. 13	San Francisco-Oakland	680	6	177,300	2.5	10,600	6%	159,500	3,500	33%	52,700	1,279,500	$1,494,000	29%	15,300
I-264 @ Downtown Tunnel	Norfolk (036)-Virginia Beach-Newport	264	4	118,800	7.9	3,200	3%	152,100	700	22%	33,500	254,100	$282,000	22%	7,400
I-35E @ TH 36 Interchange	Minneapolis-St. Paul	35	6	144,000	3.6	6,800	5%	146,500	2,200	33%	47,500	817,200	$933,000	58%	27,600
I-95 @ U.S. 90 Interchange	Jacksonville	10	5	173,300	7.2	3,300	2%	144,600	500	15%	21,800	188,200	$212,000	29%	6,300
SR 176 between Snow Rd and Broadview Rd	Cleveland	176	2	65,400	6.3	3,500	5%	133,700	1,700	49%	65,000	673,900	$750,000	49%	31,900
MOPAC Expy-Capital of Texas	Austin	SL1	4	129,900	8.3	2,300	2%	115,800	2,000	89%	100,500	736,400	$851,000	39%	39,200
SR 16 @ Sprague Ave	Seattle	16	4	121,600	4.5	3,500	3%	95,500	800	24%	21,900	293,300	$331,000	15%	3,300
I-94 W of Marquette Interchange	Milwaukee	94	6	161,900	5.5	2,700	2%	92,200	1,100	39%	37,100	402,300	$451,000	33%	12,200
I-80 @I-294 Interchange	Chicago-Northwestern IN	80	6	136,900	1.2	12,100	9%	91,700	4,200	35%	31,700	1,697,300	$1,926,000	53%	16,800
SR 400 @ I-285 Interchange	Atlanta	400	4	112,400	2.6	5,800	5%	91,700	1,700	29%	26,700	641,600	$711,000	52%	13,900
U.S. 192 @ I-4	Orlando	192	4	114,200	1.4	10,300	9%	86,800	3,500	34%	29,500	1,317,400	$1,487,000	20%	5,900
I-277 @ I-77 Interchange	Akron	277	2	60,200	4.5	3,000	5%	82,300	1,500	50%	41,100	594,600	$662,000	52%	21,400
I-475 @ Monroe St.	Toledo (OH-MI)	475	3	116,600	1.2	10,200	9%	76,900	3,800	38%	28,700	1,506,300	$1,676,000	40%	11,500
SR 520 Floating Bridge	Seattle	520	4	104,500	6.9	1,800	2%	76,200	400	24%	16,700	146,700	$166,000	15%	2,500
I-195 @ SR 76 Interchange	Richmond	195	3	92,400	3.0	3,900	4%	72,400	1,900	48%	35,200	689,600	$765,000	40%	14,100
I-75, from Ohio River Bridge to I-71 Interchange	Cincinnati (OH-KY)	75	4	141,600	0.8	14,900	11%	70,900	5,300	36%	25,300	2,100,900	$2,338,000	63%	15,900
U.S. 1 @ Chippenham Pkwy	Richmond	150	2	56,000	3.3	3,500	6%	69,700	1,700	48%	34,100	617,000	$685,000	40%	13,600
I-394 @ TH 100 Interchange	Minneapolis-St. Paul	394	6	152,900	2.0	5,300	3%	64,000	1,700	33%	20,400	631,500	$721,000	58%	11,800
Loop 410 @U.S. 281 Interchange	San Antonio	410	6	174,700	3.7	2,800	2%	62,400	500	18%	11,200	184,100	$213,000	41%	4,600
I-290 (Eisenhower Expwy) Between Exits 17b and 23a	Chicago-Northwestern IN	290	6	202,500	6.4	1,500	0.7%	59,400	500	35%	19,600	202,100	$229,000	53%	10,400
SR 100 @ I-394 Interchange	Minneapolis-St. Paul	100	4	104,500	1.2	6,800	7%	48,900	2,200	33%	15,700	817,200	$933,000	58%	9,100
I-43 N. of Marquette Interchange	Milwaukee	43	6	146,100	1.5	4,800	3%	42,400	1,900	39%	16,900	694,900	$778,000	33%	5,600
I-96 @ I-275 Interchange	Detroit	96	8	201,600	8.3	700	0.3%	35,100	200	29%	10,100	72,600	$82,000	32%	3,200
I-66 @ U.S. 29 Interchange (E. Falls Church)	Washington (DC-MD-VA)	66	4	118,400	7.5	800	0.7%	34,500	100	14%	4,500	36,300	$40,000	53%	2,400
U.S. 10 @ U.S. 441 Interchange	Appleton-Neenah	10	2	62,100	4.8	900	1.4%	26,000	200	23%	5,800	73,200	$82,000	66%	3,800
I-64 (Hampton Roads Tunnel )	Norfolk (036)-Virginia Beach-Newport	64	4	98,500	0.5	7,500	8%	22,200	1,600	22%	4,700	580,700	$645,000	22%	1,000
U.S. 75 to SR 190 F	Dallas-Fort Worth	75	8	249,100	4.8	700	0%	21,100	200	26%	5,800	73,600	$85,000	54%	3,100
SR 16 @ SR 3	Bremerton	16	2	65,900	1.0	3,500	5%	21,000	800	24%	4,800	293,300	$331,000	15%	700
SR 146 @ La Porte Fwy	Houston	146	2	68,400	6.7	500	0.7%	19,400	200	40%	8,200	73,600	$85,000	44%	3,600
Woodland Ave @ I-77	Cleveland	77	2	75,100	0.2	13,500	18%	17,500	6,600	49%	8,600	2,616,300	$2,911,000	49%	4,200
I-635 @ N. Dallas Tollway	Dallas-Fort Worth	635	8	272,400	6.6	100	0.04%	4,300	30	26%	1,200	11,000	$13,000	54%	600

Table A.6 The Worst Physical Bottlenecks in the United States, *2002*
*American Highway Users Alliance Study*
Rank	City	Freeway	Location	Annual Hours of Delay (Hours in Thousands)
1	Los Angeles	U.S. 101	U.S. 101 (Ventura Freeway) at I-405 Interchange	27,144
2	Houston	I-610	I-610 at I-10 Interchange (West)	25,181
3	Chicago	I-90	I-90/94 at I-290 Interchange ("Circle Interchange")	25,068
4	Phoenix	I-10	I-10 at SR 51/SR 202 Interchange ("Mini-Stack")	22,805
5	Los Angeles	I-405	I-405 (San Diego Freeway) at I-10 Interchange	22,792
6	Atlanta	I-75	I-75 south of the I-85 Interchange	21,045
7	Washington (DC-Maryland-Virginia)	I-495	I-495 at I-270 Interchange	19,429
8	Los Angeles	I-10	I-10 (Santa Monica Freeway) at I-5 Interchange	18,606
9	Los Angeles	I-405	I-405 (San Diego Freeway) at I-605 Interchange	18,606
10	Atlanta	I-285	I-285 at I-85 Interchange ("Spaghetti Junction")	17,072
11	Chicago	I-94	I-94 (Dan Ryan Expressway) at I-90 Skyway Split (Southside)	16,713
12	Phoenix	I-17	I-17 (Black Canyon Freeway) at I-10 Interchange (the "Stack") to Cactus Road	16,310
13	Los Angeles	I-5	I-5 (Santa Ana Freeway) at SR 22/SR 57 Interchange ("Orange Crush")	16,304
14	Providence	I-95	I-95 at I-195 Interchange	15,340
15	Washington (DC-Maryland-Virginia)	I-495	I-495 at I-95 Interchange	15,035
16	Tampa	I-275	I-275 at I-4 Interchange ("Malfunction Junction")	14,371
17	Atlanta	I-285	I-285 at I-75 Interchange	14,333
18	Seattle	I-5	I-5 at I-90 Interchange	14,306
19	Chicago	I-290	I-290 (Eisenhower Expressway) Between Exits 17b and 23a	14,009
20	Houston	I-45	I-45 (Gulf Freeway) at U.S. 59 Interchange	13,944
21	San Jose	U.S. 101	U.S. 101 at I-880 Interchange	12,249
22	Las Vegas	U.S. 95	U.S. 95 west of the I-15 Interchange ("Spaghetti Bowl")	11,152
23	San Diego	I-805	I-805 at I-15 Interchange	10,992
24	Cincinnati	I-75	I-75, from Ohio River Bridge to I-71 Interchange	10,088

Source: Unclogging America's Arteries: Effective Relief for Highway Bottlenecks, American Highway Users Alliance, February 2004. Delay is the extra time it would take to travel through the bottlenecks compared to completely uncongested conditions. The report did not consider many severe bottlenecks from the New York City area. As most travelers know, congestion in and around the boroughs of New York can be significant. However, a very large amount of delay in the New York area is related to bridge and tunnel crossings into Manhattan, most of which are toll facilities. Also, while the New York metropolitan area is laced with Interstates, parkways, and expressways, they seldom reach the proportions seen in other major areas, except where multiple highways converge on bridge of tunnel crossings. (A typical lane configuration for a New York area freeway is six lanes, three in each direction. But there are many of these.) Toll facilities were excluded from the study because toll facilities are fundamentally different from other physical bottlenecks (such as freeway-to-freeway interchanges) that are prevalent around the country. Delay comparisons between toll facilities and other types of bottlenecks might not be consistent since different modeling techniques would be used. If objective field measurements of delay could be made at all locations around the country, several river crossings into Manhattan would no doubt be included in a list of the nation's worst bottlenecks.

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