Author : Yacoub M. Najjar
Publisher :
Page : 68 pages
File Size : 16,79 MB
Release : 2000
Category : Speed limits
ISBN :
Book Description
On November 28, 1995, the National Highway System (NHS) Designation Act abolished the federal mandate for the National Maximum Speed Limit (NMSL) and returned the authority of establishing speed limits to the states. By the end of 1996, 32 states had passed laws to raise speed limits on various highways. Accordingly, Kansas' law increased speed limits on most of its highways in March 1996. The detailed research study reported herein concentrated on analyzing the before and after Kansas speed and accident databases. In regard to speed analysis, the t-test was applied to investigate whether significant increases in 85th percentile speeds were noted during the after period on both interstate and 2-lane rural highways.