350 differs report from 230 in the following ways: The department has developed an approved list of those devices that comply with nchrp 350 test level 3 and our specifications, and will maintain it on vdot’s web site. Presents a synthesis of current information and operating practices related to roadside safety and focuses on safety treatments that can minimize the likelihood of serious injuries when a motorist leaves the roadway.
In addition, a federal register notice was also issued regarding this action. In 1993, nchrp report 350, “recommended procedures for the safety performance evaluation of highway features” was published Nchrp 350 was published in 1993 by the transportation research board
