Actual Speeds on the Roads Compared to the Posted Limits

摘要

The Arizona Department of Transportation (AzDOT) is aware that a large number of motorists exceed the posted speed limits on Arizona highways. The extent of the speeding problem is not clearly understood. The purpose of this project is to explore the issue of actual speeds on Arizona highways exceeding posted limits. In addition to examining the current state of affairs, this report looks at how other states are handling speed limits and speed enforcement and explores options to help reduce the problem. This was done by means of a written survey sent to each of the fifty states. A review of the literature also was conducted to identify recent research, current trends, and best practices in the industry. The information that was gathered is summarized in this report. It is intended this report will be used by AzDOT to inform decision-makers regarding whether to increase speed enforcement efforts or raise speed limits to accommodate driver behavior on Arizona highways.