US Highway Capacity Index by
Urbanized Areas above
500,000 Population (1996)

4 Tables


Average Highway Capacity Index and
Roadway Capacity Index by Quintile
Quintile Highway Capacity Index
(Composite):
Variation from Average
Roadway Congestion Index
1st +35.4% 1.006
2nd +11.2% 1.030
3rd -3.8% 1.069
4th -12.1% 1.117
5th -31.1% 1.143

Highway Capacity Index (Composite)

Rank

Urbanized Area Equivalent Freeway (Composite) Lane Miles per 1,000 Population (Note) Compared to Average TTI Roadway Congestion Index
1 Nashville TN 1.778 76.9% 1.00
2 Kansas City MO-KS 1.577 56.9% 0.81
3 Hartford-Middletown CT 1.418 41.1% 0.93
4 Jacksonville FL 1.408 40.1% 0.99
5 San Bernardino-Riverside CA 1.342 33.5% 1.22
6 Austin TX 1.321 31.4% 1.03
7 Indianapolis IN 1.292 28.6% 1.00
8 St. Louis MO-IL 1.286 28.0% 1.05
9 Fort Worth TX 1.237 23.1% 1.01
10 San Antonio TX 1.231 22.5% 0.99
11 Atlanta GA 1.225 21.9% 1.24
12 El Paso TX-NM 1.213 20.7% 0.80
13 Orlando FL 1.166 16.0% 0.91
14 Dallas TX 1.152 14.6% 1.11
15 San Jose CA 1.147 14.1% 1.11
16 Louisville KY-IN 1.136 13.0% 1.04
17 Albuquerque NM 1.136 13.0% 1.01
18 Charlotte NC 1.129 12.3% 0.98
19 Oklahoma City OK 1.119 11.3% 0.91
20 Columbus OH 1.107 10.1% 1.01
21 Houston TX 1.084 7.8% 1.11
22 Sacramento CA 1.077 7.2% 1.07
23 Cincinnati OH-KY 1.045 4.0% 1.07
24 Providence-Pawtucket RI-MA 1.039 3.4% 0.96
25 Denver CO 1.010 0.5% 1.12
26 Baltimore MD 0.994 -1.1% 1.09
27 Pittsburgh PA 0.991 -1.4% 0.85
28 Seattle-Everett WA 0.977 -2.9% 1.27
29 San Diego CA 0.967 -3.8% 1.23
30 Detroit MI 0.951 -5.4% 1.24
31 Buffalo-Niagara Falls NY 0.948 -5.7% 0.78
32 Phoenix AZ 0.925 -7.9% 1.14
33 Norfolk VA 0.920 -8.5% 0.96
34 Minneapolis-St. Paul MN 0.919 -8.5% 1.12
35 Omaha NE-IA 0.918 -8.7% 1.00
36 Cleveland OH 0.907 -9.8% 1.02
37 Boston MA 0.899 -10.6% 1.09
38 Rochester NY 0.894 -11.1% 0.87
39 Tampa FL 0.891 -11.4% 1.06
40 Tacoma WA 0.890 -11.5% 1.18
41 Milwaukee WI 0.885 -12.0% 1.03
42 San Francisco-Oakland CA 0.875 -13.0% 1.33
43 Ft. Lauderdale-Hollywood-Pompano Bch FL 0.858 -14.7% 1.03
44 Los Angeles CA 0.854 -15.1% 1.57
45 Memphis TN-AR-MS 0.849 -15.5% 1.11
46 Salt Lake City UT 0.836 -16.8% 1.00
47 Washington DC-MD-VA 0.798 -20.6% 1.43
48 Miami-Hialeah FL 0.787 -21.7% 1.34
49 Fresno CA 0.783 -22.1% 0.78
50 Portland-Vancouver OR-WA 0.755 -24.9% 1.16
51 Honolulu HI 0.742 -26.2% 1.10
52 Tucson AZ 0.701 -30.3% 1.02
53 New Orleans LA 0.647 -35.7% 1.09
54 Chicago IL-Northwestern IN 0.602 -40.1% 1.34
55 Philadelphia PA-NJ 0.576 -42.7% 1.07
56 New York NY-Northeastern NJ 0.552 -45.1% 1.18
57 Las Vegas NV 0.531 -47.2% 1.20
Average 1.005 1.07
Composite index calculated using weighting of freeway lane capacity (13,000 vehicles daily) and arterial lane capacity (5,000 vehicles daily).


Freeway Capacity Index

Rank

Urbanized Area Freeway Lane Miles per 1,000 Population (Note) Compared to Average TTI Roadway Congestion Index
1 Kansas City MO-KS 1.250 93.9% 0.81
2 Nashville TN 1.144 77.5% 1.00
3 Hartford-Middletown CT 1.000 55.1% 0.93
4 Fort Worth TX 0.910 41.1% 1.01
5 St. Louis MO-IL 0.891 38.2% 1.05
6 Austin TX 0.887 37.6% 1.03
7 Atlanta GA 0.883 36.9% 1.24
8 Indianapolis IN 0.875 35.7% 1.00
9 San Antonio TX 0.853 32.3% 0.99
10 Columbus OH 0.851 32.1% 1.01
11 Louisville KY-IN 0.832 29.1% 1.04
12 Dallas TX 0.814 26.3% 1.11
13 Houston TX 0.789 22.4% 1.11
14 Cincinnati OH-KY 0.787 22.0% 1.07
15 Rochester NY 0.782 21.4% 0.87
16 San Jose CA 0.781 21.1% 1.11
17 Oklahoma City OK 0.765 18.7% 0.91
18 Jacksonville FL 0.756 17.3% 0.99
19 San Bernardino-Riverside CA 0.730 13.2% 1.22
20 Charlotte NC 0.711 10.2% 0.98
21 Minneapolis-St. Paul MN 0.702 8.9% 1.12
22 San Diego CA 0.696 8.0% 1.23
23 Providence-Pawtucket RI-MA 0.689 6.9% 0.96
24 Orlando FL 0.678 5.1% 0.91
25 Baltimore MD 0.676 4.9% 1.09
26 Seattle-Everett WA 0.672 4.2% 1.27
27 Sacramento CA 0.671 4.1% 1.07
28 Cleveland OH 0.659 2.2% 1.02
29 San Francisco-Oakland CA 0.640 -0.7% 1.33
30 El Paso TX-NM 0.628 -2.6% 0.80
31 Salt Lake City UT 0.615 -4.7% 1.00
32 Pittsburgh PA 0.614 -4.7% 0.85
33 Norfolk VA 0.604 -6.3% 0.96
34 Honolulu HI 0.603 -6.5% 1.10
35 Denver CO 0.588 -8.8% 1.12
36 Buffalo-Niagara Falls NY 0.572 -11.2% 0.78
37 Washington DC-MD-VA 0.530 -17.7% 1.43
38 Omaha NE-IA 0.523 -18.9% 1.00
39 Ft. Lauderdale-Hollywood-Pompano Bch FL 0.519 -19.6% 1.03
40 Albuquerque NM 0.518 -19.7% 1.01
41 Boston MA 0.515 -20.1% 1.09
42 Portland-Vancouver OR-WA 0.514 -20.3% 1.16
43 Tacoma WA 0.508 -21.1% 1.18
44 Milwaukee WI 0.500 -22.4% 1.03
45 Detroit MI 0.494 -23.4% 1.24
46 Tampa FL 0.476 -26.2% 1.06
47 Los Angeles CA 0.454 -29.5% 1.57
48 Fresno CA 0.453 -29.7% 0.78
49 Memphis TN-AR-MS 0.417 -35.4% 1.11
50 New Orleans LA 0.381 -40.9% 1.09
51 New York NY-Northeastern NJ 0.377 -41.6% 1.18
52 Phoenix AZ 0.374 -42.0% 1.14
53 Las Vegas NV 0.340 -47.3% 1.20
54 Miami-Hialeah FL 0.337 -47.8% 1.34
55 Chicago IL-Northwestern IN 0.336 -47.9% 1.34
56 Philadelphia PA-NJ 0.331 -48.6% 1.07
57 Tucson AZ 0.250 -61.2% 1.02
Average 0.645   1.07
Calculated using Texas Transportation Institute data.


Arterial Capacity Index

Rank

Urbanized Area Arterial Lane Miles per 100,000 Population (Note) Compared to Average TTI Roadway Congestion Index
1 Jacksonville FL 1.695 80.8% 0.99
2 Nashville TN 1.648 75.8% 1.00
3 Albuquerque NM 1.607 71.4% 1.01
4 San Bernardino-Riverside CA 1.593 69.8% 1.22
5 El Paso TX-NM 1.521 62.2% 0.80
6 Phoenix AZ 1.434 52.9% 1.14
7 Orlando FL 1.270 35.5% 0.91
8 Detroit MI 1.189 26.8% 1.24
9 Tucson AZ 1.172 25.0% 1.02
10 Miami-Hialeah FL 1.171 24.9% 1.34
11 Austin TX 1.129 20.4% 1.03
12 Memphis TN-AR-MS 1.125 20.0% 1.11
13 Denver CO 1.099 17.2% 1.12
14 Charlotte NC 1.088 16.0% 0.98
15 Hartford-Middletown CT 1.087 15.9% 0.93
16 Indianapolis IN 1.085 15.7% 1.00
17 Tampa FL 1.079 15.1% 1.06
18 Sacramento CA 1.057 12.7% 1.07
19 Los Angeles CA 1.039 10.8% 1.57
20 St. Louis MO-IL 1.027 9.6% 1.05
21 Omaha NE-IA 1.027 9.5% 1.00
22 Milwaukee WI 1.000 6.6% 1.03
23 Boston MA 0.998 6.5% 1.09
24 Tacoma WA 0.992 5.7% 1.18
25 San Antonio TX 0.984 4.9% 0.99
26 Pittsburgh PA 0.979 4.4% 0.85
27 Buffalo-Niagara Falls NY 0.977 4.2% 0.78
28 San Jose CA 0.953 1.6% 1.11
29 Oklahoma City OK 0.918 -2.1% 0.91
30 Providence-Pawtucket RI-MA 0.911 -2.8% 0.96
31 Atlanta GA 0.891 -5.0% 1.24
32 Ft. Lauderdale-Hollywood-Pompano Bch FL 0.882 -5.9% 1.03
33 Dallas TX 0.878 -6.4% 1.11
34 Fresno CA 0.858 -8.4% 0.78
35 Fort Worth TX 0.851 -9.2% 1.01
36 Kansas City MO-KS 0.851 -9.3% 0.81
37 Baltimore MD 0.828 -11.7% 1.09
38 Norfolk VA 0.822 -12.4% 0.96
39 Seattle-Everett WA 0.792 -15.5% 1.27
40 Louisville KY-IN 0.790 -15.7% 1.04
41 Houston TX 0.766 -18.3% 1.11
42 San Diego CA 0.706 -24.7% 1.23
43 Washington DC-MD-VA 0.697 -25.7% 1.43
44 Chicago IL-Northwestern IN 0.692 -26.2% 1.34
45 New Orleans LA 0.691 -26.4% 1.09
46 Cincinnati OH-KY 0.672 -28.3% 1.07
47 Columbus OH 0.663 -29.3% 1.01
48 Cleveland OH 0.645 -31.2% 1.02
49 Philadelphia PA-NJ 0.636 -32.1% 1.07
50 Portland-Vancouver OR-WA 0.627 -33.1% 1.16
51 San Francisco-Oakland CA 0.611 -34.9% 1.33
52 Salt Lake City UT 0.575 -38.6% 1.00
53 Minneapolis-St. Paul MN 0.564 -39.8% 1.12
54 Las Vegas NV 0.498 -46.9% 1.20
55 New York NY-Northeastern NJ 0.455 -51.4% 1.18
56 Honolulu HI 0.362 -61.4% 1.10
57 Rochester NY 0.290 -69.0% 0.87
Average 0.938   1.07
Calculated using Texas Transportation Institute data.



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