![]() ![]() If one or more of these thresholds are exceeded, then the project is considered significant and a full transportation Work zone volume/capacity ratio is greater than 0.80. ![]() Work zone level of service (LOS) is lower than or equal to LOS D, or it drops to LOS C if the current operation is LOS A,.Work zone delay greater than 10 minutes,.MDOT came up with three threshold criteria to determine if a project is significant: This became the basis for MDOT's significant projects definition. MDOT was regularly bringing high impact projects to management attention, so the Regions involved with writing the policy were asked how they had been deciding which projects to bring to management's attention. In writing the policy, the group determined that MDOT was already following most of the Rule requirements and would primarily need to document what they were already doing. This group met several times over a three to four month period to draft the policy. To develop the policy, MDOT convened a group comprised of one representative from each of the seven MDOT Regions and representatives from the MDOT Traffic and Safety Division, MDOT Bureau of Transportation Planning, MDOT Design Division, MDOT Construction Division, a communications specialist from the Detroit Metro Region, and two representatives from the Federal Highway Administration Michigan Division Office. In late 2006, Michigan Department of Transportation (MDOT) executive management tasked the MDOT Operations Engineer in the Division of Operations with developing a work zone safety and mobility policy, in response to the updated Rule on Work Zone Safety and Mobility (23 CFR 630 Subpart J). Regulation & Policy > Final Rule > Examples Policy Development ![]()
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