Skip navigation to main content
United States Department of Transportation - Federal Highway Administration FHWA HomeFeedback


Appendix C

Signalized Intersection Bottlenecks

Figure C.1 Signalized Intersection Bottlenecks on Arterials Used As Intercity Truck Corridors
HPMS Sample Sections Only

Map of the continental United States showing locations of signalized bottlenecks on arterials used as intercity truck corridors. Dense clusters are shown in western Pennsylvania, New Jersey, Connecticut, and Rhode Island; in Maryland and Washington, D.C.; in North and South Carolina; in Kentucky; in Louisiana; in Wisconsin and Minnesota; in southern California, southern Nevada, central California and central Nevada; and in Washington state.

Table C.1 Top 25 Signalized Intersection Bottlenecks on Arterials Used As Intercity Truck Corridors
HPMS Sample Sections Only
Route Number Bottleneck Location No. of Lanes All Vehicles-2004 All Trucks-2004
AADT AADTT Percent of All Vehicles Annual Hours of Delay All Trucks Annual Hours of Delay All Trucks (Expanded)
158Dare, North Carolina441,2994,13010%118,559426,458
501Horry, South Carolina449,4655,93612%97,115176,555
U.S. 202Hunterdon, New Jersey438,8252,3306%87,978499,893
17Horry, South Carolina665,6207,87412%66,95074,046
Del1Sussex, Delaware558,9157,07012%65,427110,965
169King, Washington227,1342,71310%55,36772,253
9Snohomish, Washington221,3382,56112%52,24368,177
50Dearborn, Indiana437,3966,73118%49,035148,820
37Sonoma, California445,8174,1249%47,58495,835
74Union, North Carolina456,4654,5178%46,80660,146
430Washoe, Nevada440,4016,86817%45,08585,301
U.S. 41Lee, Florida448,2712,8966%43,316329,635
NJ 31Hunterdon, New Jersey221,6931,5197%40,711256,562
70Pima, Arizona430,1666,03320%39,30793,945
301Prince Georges, Maryland469,8836,98810%39,04981,379
1Moore, North Carolina435,2264,93214%37,243171,617
U.S. 29Fauquier, Virginia445,8533,2107%37,141233,802
59Baldwin, Alabama425,8652,0698%36,60594,697
NJ 31Hunterdon, New Jersey425,8082,0658%36,407229,435
231Warren, Kentucky439,0351,9525%35,19562,894
50Dearborn, Indiana432,2545,80618%35,144106,662
U.S. 9Sussex, Delaware544,3635,32412%34,67062,475
U.S. 29Prince William, Virginia453,9553,7777%34,18135,891
158Dare, North Carolina441,2994,13010%34,143122,812
65Taney, Missouri215,8572,53716%33,290208,359

Figure C.2 Signalized Intersection Bottlenecks on Arterials Used As Intermodal Connectors
HPMS Sample Sections Only

Map of the continental United States showing locations of signalized bottlenecks on arterials used as intermodal connectors. Three clusters are shown in southern Michigan, in gulf coast Florida, and in Washington state.

Table C.2 Top 25 Signalized Intersection Bottlenecks on Arterials Used As Intermodal Connectors
HPMS Sample Sections Only
Route Number Bottleneck Location No. of Lanes All Vehicles-2004 All Trucks-2004
AADT AADTT Percent of All Vehicles Annual Hours of Delay All Trucks Annual Hours of Delay All Trucks (Expanded)
165Ouachita, Louisiana466,44811,29617%335,812335,812
110Suffolk, New York474,2895,2007%193,803383,537
1Caddo, Louisiana429,5539,16131%165,532271,637
90Orleans, Louisiana643,7204,80911%161,489694,566
165Ouachita, Louisiana437,6259,40625%126,208182,623
90Orleans, Louisiana645,9294,59310%125,005293,011
29Greenville, South Carolina635,1773,86911%112,798465,970
17Horry, South Carolina645,9935,05911%104,662150,400
90Lafayette, Louisiana447,76310,98523%95,410109,721
S12San Diego, California653,4954,2808%94,645383,406
U.S. 59Webb, Texas428,3696,24122%83,354150,704
47St. Bernard, Louisiana430,8205,85619%75,717182,024
264Pitt, North Carolina433,5392,6838%70,92596,529
5011002672,04815,85122%65,70584,431
71Rapides, Louisiana434,8263,83111%64,55084,754
25Rankin, Mississippi457,4748,62115%63,68263,682
U.S. 1Mercer, New Jersey675,3478,28811%60,98365,374
41Lake, Illinois471,0438,52512%59,7372,011,173
200Wake, North Carolina437,0262,9628%58,371189,530
 Hinds, Mississippi439,5845,93815%57,649112,127
U.S. 30Camden, New Jersey433,0543,63611%55,555535,382
90Orleans, Louisiana431,0613,10610%54,618131,303
SH 289Collin, Texas653,3593,2026%53,141172,442
90Dutchess, New York652,1112,6065%51,65360,950
NJ 73Burlington, New Jersey464,3557,07911%49,604458,590

Figure C.3 Signalized Intersection Bottlenecks on Arterials Used As Urban Truck Corridors
HPMS Sample Sections Only

Map of the continental United States showing locations of signalized bottlenecks on arterials used as urban corridors. Dense clusters are shown in western Pennsylvania, New Jersey, Connecticut, and Rhode Island; in Washington, D.C.; in North and South Carolina; in Louisiana; in Wisconsin, northern Illinois, and northern Indiana; and in Washington state.

Table C.3 Signalized Intersection Bottlenecks on Arterials Used As Urban Truck Corridors
HPMS Sample Sections Only
Route Number Bottleneck Location No. of Lanes All Vehicles-2004 All Trucks-2004
AADT AADTT Percent of All Vehicles Annual Hours of Delay All Trucks Annual Hours of Delay All Trucks (Expanded)
 Collier, Florida654,1062,1644%41,10698,162
SR 686Pinellas, Florida690,3976,3287%38,91443,661
SR 686Pinellas, Florida490,3976,3287%30,59834,330
-Wayne, Mississippi443,5952,6166%17,826254,471
-King, Washington455,4163,3256%9,92737,227

Figure C.4 Signalized Intersection Bottlenecks on Arterials Used As Truck Access Routes
HPMS Sample Sections Only

Map of the continental United States showing locations of signalized bottlenecks on arterials used as truck access routes.  Dense clusters are shown in Massachusetts; in southeastern Pennsylvania; in Maryland; in southern Michigan; in northern Illinois; in central and north Texas; in southern and central California; and in Washington state.

Table C.4 Top 25 Signalized Intersection Bottlenecks on Arterials Used As Truck Access Routes
HPMS Sample Sections Only
Route Number Bottleneck Location No. of Lanes All Vehicles-2004 All Trucks-2004
AADT AADTT Percent of All Vehicles Annual Hours of Delay All Trucks Annual Hours of Delay All Trucks (Expanded)
-Sacramento, California686,18518,09921%320,265320,265
-San Diego, California6100,1948,0168%215,711215,711
-San Diego, California455,8148,37215%161,312180,669
-Oakland, Mississippi656,51317,51931%106,834392,937
-King, Washington445,5713,6468%93,466294,979
-Oakland, Mississippi438,8251,9415%59,550850,070
-San Bernardino, California437,9425,69115%58,74992,177
-Santa Clara, California680,7907,2719%53,66253,662
-Oakland, Mississippi458,6012,9305%53,592197,111
-Santa Clara, California684,1032,5233%46,75446,754
-Oakland, Mississippi474,8763,7445%40,058121,455
-Dallas, Texas654,6171,6393%37,581121,952
-Sacramento, California453,5084,8169%35,15056,345
-Santa Clara, California655,5263,8877%34,893148,332
-Oakland, Mississippi474,8768,23611%34,572104,821
-Spokane, Washington425,5492,55510%30,681100,603
-San Diego, California434,0641,7035%30,138306,077
-Pierce, Washington445,0743,1557%28,16388,884
-11002777,7723,1114%26,81834,461
-Dallas, Texas664,5241,9363%24,597228,211
-Cook, Illinois893,7023,7484%19,831172,172
-Hillsborough, New Hampshire429,7052,0797%19,26136,981
-Dallas, Texas640,4921,2153%18,99888,854
-Dallas, Texas649,3221,4803%17,28056,075
-Maricopa, Arizona428,1393,65813%16,650155,811

< Appendix B | Table of Contents | Appendix D >



FHWA Home | Feedback
FHWA