Q22. In your opinion, how much of a challenge, if any, is each of the following factors in meeting the travel demand modeling needs of your area for transportation planning? |
h. Air quality conformity constraints |
| Very great challenge |
Great challenge |
Moderate challenge |
Some or little challenge |
No challenge |
No basis to judge |
Number of respondents | |
|---|---|---|---|---|---|---|---|
| < 200,000 people | 4.2 | 3.5 | 9.9 | 7.0 | 37.3 | 38.0 | 142 |
| 200,000 to < 1,000,000 people | 7.1 | 12.4 | 19.5 | 16.8 | 25.7 | 18.6 | 113 |
| 1,000,000 or more people | 4.9 | 14.6 | 22.0 | 31.7 | 19.5 | 7.3 | 41 |
| Total | 5.4 | 8.4 | 15.2 | 14.2 | 30.4 | 26.4 | 296 |