Appendix D
Capacity Bottlenecks
Figure D.1 Capacity Bottlenecks on Freeways Used As Intercity Truck Corridors
HPMS Sample Sections Only

Table D.1 Top 25 Capacity Bottlenecks on Freeways 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) |
85 | Mecklenburg, North Carolina | 4 | 94,761 | 18,005 | 19% | 212,021 | 260,786 |
75 | Henry, Georgia | 6 | 133,850 | 34,801 | 26% | 148,845 | 266,134 |
75 | Henry, Georgia | 6 | 137,399 | 35,724 | 26% | 148,056 | 180,036 |
80 | Yolo, California | 6 | 133,207 | 11,989 | 9% | 85,317 | 194,437 |
93 | Rockingham, New Hampshire | 4 | 98,403 | 11,808 | 12% | 67,024 | 67,024 |
580 | Alameda, California | 8 | 158,093 | 30,038 | 19% | 64,881 | 115,684 |
95 | Mercer, New Jersey | 6 | 110,159 | 19,829 | 18% | 60,228 | 63,300 |
77 | Iredell, North Carolina | 4 | 76,834 | 14,598 | 19% | 57,778 | 165,880 |
IS95 | Stafford, Virginia | 6 | 124,787 | 14,974 | 12% | 55,103 | 137,206 |
10 | Pima, Arizona | 4 | 82,344 | 31,291 | 38% | 50,247 | 50,247 |
95 | Harford, Maryland | 8 | 138,995 | 29,189 | 21% | 49,414 | 49,414 |
15 | Weber, Utah | 4 | 92,058 | 23,015 | 25% | 48,088 | 48,088 |
93 | Rockingham, New Hampshire | 4 | 84,369 | 10,124 | 12% | 46,136 | 46,136 |
95 | Mercer, New Jersey | 6 | 109,359 | 19,685 | 18% | 43,941 | 46,182 |
95 | Harford, Maryland | 6 | 106,982 | 22,466 | 21% | 42,756 | 94,704 |
85 | Rowan, North Carolina | 4 | 64,715 | 11,649 | 18% | 39,756 | 68,778 |
78 | Hunterdon, New Jersey | 6 | 108,031 | 19,446 | 18% | 35,923 | 37,755 |
85 | Anderson, South Carolina | 4 | 42,763 | 11,974 | 28% | 29,161 | 78,211 |
95 | Baltimore, Maryland | 8 | 149,757 | 22,464 | 15% | 28,182 | 73,527 |
78 | Hunterdon, New Jersey | 6 | 98,785 | 17,781 | 18% | 25,143 | 25,143 |
93 | Rockingham, New Hampshire | 4 | 94,043 | 11,285 | 12% | 24,545 | 24,545 |
95 | Middlesex, New Jersey | 6 | 115,783 | 20,841 | 18% | 24,303 | 25,542 |
85 | Rowan, North Carolina | 4 | 61,532 | 11,691 | 19% | 24,190 | 41,849 |
87I | Orange, New York | 6 | 94,696 | 17,045 | 18% | 23,466 | 23,466 |
85 | Rowan, North Carolina | 4 | 66,678 | 16,003 | 24% | 23,430 | 121,064 |
Figure D.2 Capacity Bottlenecks on Arterials Used As Intercity Truck Corridors
HPMS Sample Sections Only

Table D.2 Top 25 Capacity 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) |
99 | San Joaquin, California | 4 | 109,083 | 21,817 | 20% | 617,667 | 975,913 |
99 | San Joaquin, California | 4 | 113,123 | 28,281 | 25% | 123,662 | 226,301 |
101 | Sonoma, California | 4 | 108,493 | 7,595 | 7% | 77,816 | 199,132 |
37 | Solano, California | 2 | 32,822 | 5,580 | 17% | 71,618 | 124,258 |
57 | Los Angeles, California | 10 | 216,303 | 25,956 | 12% | 65,984 | 65,984 |
61 | DeSoto, Mississippi | 2 | 34,977 | 6,646 | 19% | 58,088 | 142,780 |
71 | Riverside, California | 2 | 46,680 | 5,135 | 11% | 41,448 | 83,476 |
U.S. 59 | Montgomery, Texas | 4 | 92,945 | 10,224 | 11% | 40,193 | 40,193 |
99 | San Joaquin, California | 4 | 82,824 | 15,737 | 19% | 37,224 | 68,120 |
101 | Marin, California | 4 | 95,481 | 4,774 | 5% | 33,241 | 85,065 |
95 | Clark, Nevada | 6 | 207,515 | 6,225 | 3% | 27,668 | 27,668 |
12 | Napa, California | 2 | 33,518 | 2,681 | 8% | 16,952 | 57,399 |
24 | Harnett, North Carolina | 2 | 19,665 | 2,753 | 14% | 16,608 | 46,071 |
74 | Orange, California | 2 | 16,665 | 1,667 | 10% | 15,374 | 77,424 |
101 | San Benito, California | 4 | 61,854 | 9,278 | 15% | 15,064 | 16,857 |
28 | Hampshire, West Virginia | 2 | 6,067 | 849 | 14% | 14,524 | 96,335 |
37 | Sonoma, California | 2 | 32,557 | 2,930 | 9% | 13,453 | 23,341 |
99 | Fresno, California | 6 | 87,602 | 21,024 | 24% | 12,448 | 31,854 |
101 | Monterey, California | 4 | 77,451 | 12,392 | 16% | 11,364 | 20,795 |
19E | Yancey, North Carolina | 2 | 13,792 | 1,931 | 14% | 10,789 | 29,648 |
395 | Douglas, Nevada | 2 | 8,202 | 1,312 | 16% | 10,750 | 23,199 |
421 | Wilkes, North Carolina | 2 | 28,309 | 3,963 | 14% | 10,612 | 35,318 |
NJTPK | Gloucester, New Jersey | 4 | 54,341 | 8,151 | 15% | 10,306 | 10,306 |
23 | Washtenaw, Mississippi | 4 | 66,980 | 6,698 | 10% | 10,277 | 10,277 |
101 | San Luis Obispo, California | 4 | 68,686 | 6,182 | 9% | 10,098 | 11,300 |
Figure D.3 Capacity Bottlenecks on Arterials Used As Urban Truck Corridors
HPMS Sample Sections Only

Table D.3 Top 25 Capacity 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) |
NJ 17 | Bergen, New Jersey | 6 | 129,291 | 15,515 | 12% | 115,448 | 639,235 |
SH 183 | Tarrant, Texas | 6 | 154,770 | 10,834 | 7% | 50,368 | 126,928 |
SL 8 | Harris, Texas | 6 | 163,410 | 3,268 | 2% | 45,480 | 146,173 |
SH 183 | Tarrant, Texas | 6 | 144,450 | 10,112 | 7% | 35,104 | 88,462 |
SH 183 | Tarrant, Texas | 6 | 147,461 | 10,322 | 7% | 27,426 | 69,113 |
237 | Santa Clara, California | 6 | 126,247 | 8,837 | 7% | 24,614 | 24,614 |
SH 183 | Tarrant, Texas | 6 | 147,462 | 10,322 | 7% | 20,305 | 51,167 |
85 | Santa Clara, California | 6 | 144,783 | 2,896 | 2% | 17,341 | 17,341 |
U.S. 202 | Montgomery, Pennsylvania | 4 | 123,415 | 8,639 | 7% | 7,743 | 28,532 |
SH 183 | Tarrant, Texas | 6 | 159,885 | 9,593 | 6% | 6,968 | 17,559 |
SH 183 | Tarrant, Texas | 6 | 159,886 | 9,593 | 6% | 6,913 | 17,420 |
NJ 4 | Bergen, New Jersey | 6 | 100,247 | 12,030 | 12% | 6,848 | 109,700 |
U.S. 30 | Camden, New Jersey | 4 | 82,920 | 8,292 | 10% | 5,956 | 29,422 |
NJ 4 | Bergen, New Jersey | 6 | 114,035 | 13,684 | 12% | 4,964 | 27,486 |
NJ 4 | Bergen, New Jersey | 5 | 100,247 | 12,030 | 12% | 3,836 | 61,449 |
SR 60 | Hillsborough, Florida | 8 | 180,798 | 12,656 | 7% | 3,833 | 8,106 |
31 | Hamilton, Indiana | 4 | 73,229 | 13,181 | 18% | 3,791 | 3,791 |
U.S. 1 | 12086 | 6 | 92,612 | 6,483 | 7% | 3,722 | 15,952 |
SH 114 | Tarrant, Texas | 6 | 121,989 | 7,319 | 6% | 3,386 | 8,534 |
22 | Los Angeles, California | 4 | 97,972 | 2,939 | 3% | 3,177 | 3,177 |
U.S. 22 | Union, New Jersey | 5 | 95,560 | 11,467 | 12% | 2,903 | 46,497 |
DEL141 | New Castle, Delaware | 4 | 78,532 | 6,283 | 8% | 2,328 | 2,328 |
1 | Wake, North Carolina | 4 | 46,843 | 3,747 | 8% | 2,284 | 4,609 |
165 | Ouachita, Louisiana | 4 | 67,187 | 16,797 | 25% | 2,140 | 2,140 |
SR 60 | Hillsborough, Florida | 8 | 146,482 | 8,789 | 6% | 2,108 | 4,458 |
Figure D.4 Capacity Bottlenecks on Arterials Used As Intermodal Connectors (Code 1-2-3)
HPMS Sample Sections Only
Table D.4 Capacity 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) |
36 | Marion, Indiana | 4 | 68,833 | 5,507 | 8% | 402 | 1,440 |
| Shelby, Tennessee | 4 | 69,316 | 2,773 | 4% | 331 | 639 |
2 | Chittenden, Vermont | 4 | 61,963 | 3,718 | 6% | 281 | 281 |
2 | Chittenden, Vermont | 4 | 49,694 | 2,982 | 6% | 144 | 144 |
- | Shelby, Tennessee | 4 | 67,108 | 2,684 | 4% | 60 | 117 |
Figure D.5 Capacity Bottlenecks on Arterials Used As Truck Access Routes
HPMS Sample Sections Only
Table D.5 Top Capacity 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) |
- | Montgomery, Maryland | 4 | 75,398 | 4,524 | 6% | 5,937 | 29,139 |
- | Santa Clara, California | 4 | 72,025 | 5,762 | 8% | 1,517 | 1,517 |
- | Oakland, Mississippi | 4 | 85,248 | 1,705 | 2% | 1,074 | 3,257 |
- | Oakland, Mississippi | 4 | 71,196 | 3,560 | 5% | 1,046 | 3,849 |
- | Oklahoma City, Oklahoma | 4 | 61,212 | 1,836 | 3% | 493 | 993 |
- | Washtenaw, Mississippi | 4 | 55,019 | 4,402 | 8% | 457 | 457 |
- | Tulsa, Oklahoma | 4 | 62,560 | 626 | 1% | 384 | 384 |
- | Tulsa, Oklahoma | 4 | 62,560 | 626 | 1% | 304 | 304 |
- | Champaign, Illinois | 4 | 49,077 | 2,945 | 6% | 202 | 202 |
- | Washtenaw, Mississippi | 4 | 43,324 | 3,466 | 8% | 150 | 224 |
- | Pulaski, Arkansas | 4 | 44,558 | 1,337 | 3% | 95 | 254 |