The Impact of Speed Limit Increases on Fatal Interstate Crashes
"We can see the significance of the speed limit increases graphically with the following code:
Code
0
No Change
1
Not Significant at 0.1 Level
2
Significant at 0.1 level
We can summarize the findings as follows:
- 19 of 40 states experienced a significant increase in fatal crashes along with the FIRST speed limit increase on rural interstates (Figure 4).
- 10 of 36 states experienced a significant increase in fatal crashes along with SECOND speed limit increase on rural interstates (Figure 5).
- 6 of 31 states experienced a significant increase in fatal crashes along with the speed limit increase on urban interstates (Figure 6)."
Please don't infer this to mean that I advocate going 0 mph because that is the safest speed. People need to get places in a "reasonable" amount of time.