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Appendix D

Capacity Bottlenecks

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

Map of the continental United States showing locations of capacity bottlenecks on freeways used as intercity truck corridors. Dense clusters are shown in Massachusetts; in New York and New Jersey; in Maryland and Virginia; in North Carolina; in Georgia; in southern Illinois; in Missouri; in north Texas and Oklahoma; in northern Utah; in central California; and in northern Oregon.

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)
85Mecklenburg, North Carolina494,76118,00519%212,021260,786
75Henry, Georgia6133,85034,80126%148,845266,134
75Henry, Georgia6137,39935,72426%148,056180,036
80Yolo, California6133,20711,9899%85,317194,437
93Rockingham, New Hampshire498,40311,80812%67,02467,024
580Alameda, California8158,09330,03819%64,881115,684
95Mercer, New Jersey6110,15919,82918%60,22863,300
77Iredell, North Carolina476,83414,59819%57,778165,880
IS95Stafford, Virginia6124,78714,97412%55,103137,206
10Pima, Arizona482,34431,29138%50,24750,247
95Harford, Maryland8138,99529,18921%49,41449,414
15Weber, Utah492,05823,01525%48,08848,088
93Rockingham, New Hampshire484,36910,12412%46,13646,136
95Mercer, New Jersey6109,35919,68518%43,94146,182
95Harford, Maryland6106,98222,46621%42,75694,704
85Rowan, North Carolina464,71511,64918%39,75668,778
78Hunterdon, New Jersey6108,03119,44618%35,92337,755
85Anderson, South Carolina442,76311,97428%29,16178,211
95Baltimore, Maryland8149,75722,46415%28,18273,527
78Hunterdon, New Jersey698,78517,78118%25,14325,143
93Rockingham, New Hampshire494,04311,28512%24,54524,545
95Middlesex, New Jersey6115,78320,84118%24,30325,542
85Rowan, North Carolina461,53211,69119%24,19041,849
87IOrange, New York694,69617,04518%23,46623,466
85Rowan, North Carolina466,67816,00324%23,430121,064

Figure D.2 Capacity Bottlenecks on Arterials Used As Intercity Truck Corridors
HPMS Sample Sections Only

Map of the continental United States showing locations of capacity bottlenecks on arterials used as intercity truck corridors. Dense clusters are shown in North Carolina; in west Tennessee; in southern and central California; and in southern Nevada.

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)
99San Joaquin, California4109,08321,81720%617,667975,913
99San Joaquin, California4113,12328,28125%123,662226,301
101Sonoma, California4108,4937,5957%77,816199,132
37Solano, California232,8225,58017%71,618124,258
57Los Angeles, California10216,30325,95612%65,98465,984
61DeSoto, Mississippi234,9776,64619%58,088142,780
71Riverside, California246,6805,13511%41,44883,476
U.S. 59Montgomery, Texas492,94510,22411%40,19340,193
99San Joaquin, California482,82415,73719%37,22468,120
101Marin, California495,4814,7745%33,24185,065
95Clark, Nevada6207,5156,2253%27,66827,668
12Napa, California233,5182,6818%16,95257,399
24Harnett, North Carolina219,6652,75314%16,60846,071
74Orange, California216,6651,66710%15,37477,424
101San Benito, California461,8549,27815%15,06416,857
28Hampshire, West Virginia26,06784914%14,52496,335
37Sonoma, California232,5572,9309%13,45323,341
99Fresno, California687,60221,02424%12,44831,854
101Monterey, California477,45112,39216%11,36420,795
19EYancey, North Carolina213,7921,93114%10,78929,648
395Douglas, Nevada28,2021,31216%10,75023,199
421Wilkes, North Carolina228,3093,96314%10,61235,318
NJTPKGloucester, New Jersey454,3418,15115%10,30610,306
23Washtenaw, Mississippi466,9806,69810%10,27710,277
101San Luis Obispo, California468,6866,1829%10,09811,300

Figure D.3 Capacity Bottlenecks on Arterials Used As Urban Truck Corridors
HPMS Sample Sections Only

Map of the continental United States showing locations of capacity bottlenecks on arterials used as urban truck corridors. Dense clusters are shown in New Jersey; in south Wisconsin and northern Illinois; and in central California.

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 17Bergen, New Jersey6129,29115,51512%115,448639,235
SH 183Tarrant, Texas6154,77010,8347%50,368126,928
SL 8Harris, Texas6163,4103,2682%45,480146,173
SH 183Tarrant, Texas6144,45010,1127%35,10488,462
SH 183Tarrant, Texas6147,46110,3227%27,42669,113
237Santa Clara, California6126,2478,8377%24,61424,614
SH 183Tarrant, Texas6147,46210,3227%20,30551,167
85Santa Clara, California6144,7832,8962%17,34117,341
U.S. 202Montgomery, Pennsylvania4123,4158,6397%7,74328,532
SH 183Tarrant, Texas6159,8859,5936%6,96817,559
SH 183Tarrant, Texas6159,8869,5936%6,91317,420
NJ 4Bergen, New Jersey6100,24712,03012%6,848109,700
U.S. 30Camden, New Jersey482,9208,29210%5,95629,422
NJ 4Bergen, New Jersey6114,03513,68412%4,96427,486
NJ 4Bergen, New Jersey5100,24712,03012%3,83661,449
SR 60Hillsborough, Florida8180,79812,6567%3,8338,106
31Hamilton, Indiana473,22913,18118%3,7913,791
U.S. 112086692,6126,4837%3,72215,952
SH 114Tarrant, Texas6121,9897,3196%3,3868,534
22Los Angeles, California497,9722,9393%3,1773,177
U.S. 22Union, New Jersey595,56011,46712%2,90346,497
DEL141New Castle, Delaware478,5326,2838%2,3282,328
1Wake, North Carolina446,8433,7478%2,2844,609
165Ouachita, Louisiana467,18716,79725%2,1402,140
SR 60Hillsborough, Florida8146,4828,7896%2,1084,458

Figure D.4 Capacity Bottlenecks on Arterials Used As Intermodal Connectors (Code 1-2-3)
HPMS Sample Sections Only

Map of the continental United States showing locations of capacity bottlenecks on arterials used as intermodal connectors. Clusters are shown in Vermont; in central Indiana; and in southwestern Tennessee.

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)
36Marion, Indiana468,8335,5078%4021,440
 Shelby, Tennessee469,3162,7734%331639
2Chittenden, Vermont461,9633,7186%281281
2Chittenden, Vermont449,6942,9826%144144
-Shelby, Tennessee467,1082,6844%60117

Figure D.5 Capacity Bottlenecks on Arterials Used As Truck Access Routes
HPMS Sample Sections Only

Map of the continental United States showing locations of capacity bottlenecks on arterials used as truck access routes. Clusters are shown in Maryland; in southern Michigan; in east Oklahoma; and in central California.

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, Maryland475,3984,5246%5,93729,139
-Santa Clara, California472,0255,7628%1,5171,517
-Oakland, Mississippi485,2481,7052%1,0743,257
-Oakland, Mississippi471,1963,5605%1,0463,849
-Oklahoma City, Oklahoma461,2121,8363%493993
-Washtenaw, Mississippi455,0194,4028%457457
-Tulsa, Oklahoma462,5606261%384384
-Tulsa, Oklahoma462,5606261%304304
-Champaign, Illinois449,0772,9456%202202
-Washtenaw, Mississippi443,3243,4668%150224
-Pulaski, Arkansas444,5581,3373%95254

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