Why not simply post a lower speed limit and have the police enforce it?
Posting speed limits lower than the 85th percentile speed does not result in voluntary motorist compliance with the posted speed limit unless there is strict, continuous and visible enforcement. Increased enforcement is effective only at the immediate time and in the area where the police officer is present. The availability of police officers is limited and their services must be shared with other police responsibilities. If unusually low speed limits are not vigorously enforced, they will be consistently violated and will breed disregard for speed limits in general.

If you have any questions, please email the Department of Engineering.

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1. What factors are considered when setting an appropriate speed limit?
2. Why not simply post a lower speed limit and have the police enforce it?
3. Most drivers drive 5 to 10 mph over the speed limit: why not establish the speed limit with this in mind?
4. How can speed enforcement be effective when it is limited to such a small portion of the drivers?
5. Isn't a lower speed limit always safer?
6. Why not install 25 mph signs or Children Playing signs to make residential areas safer?
7. Why not install stop signs, traffic signals or some other device to reduce speeds?
8. Why wait until someone is seriously injured or killed before anything is done about speeding?
9. What can I do to reduce the speeding problem in my community?