TABLE 1.
Percentage Change in Fatalities and Injuries in Fatal Crashes on US Roads After Repeal of the National Maximum Speed Law, by Road Type: 1990–2005
| Road Type | % Change | P |
| Fatalities | ||
| All road types | +3.23 | <.001 |
| Rural interstate | +9.10 | <.001 |
| Rural noninterstate | +1.60 | .025 |
| Urban interstate | +3.98 | .030 |
| Urban noninterstate | −1.78 | .063 |
| Injuries | ||
| All road types | +3.93 | <.001 |
| Rural interstate | +11.88 | <.001 |
| Rural noninterstate | +4.60 | <.001 |
| Urban interstate | +5.62 | <.001 |
| Urban noninterstate | +5.71 | <.001 |
Note. All Poisson mixed-regression models included a random intercept for the state effect and the following fixed effects: time trend, intervention effect, vehicle density, and rural interstate speed limit. Models included data for fatalities and injuries for 1990 to 2005. Massachusetts, Hawaii, and Washington, DC, were excluded.