Several multi-state transportation corridors have been the subject of collaborative transportation planning activities over the past several years. These efforts have focused on such topics as the fostering of international freight movements (LATTS), integrating ITS technologies (Crescent Study), examining high speed rail service, and promoting efficient truck movement across the country (I-95 ADVANTAGE). It seems likely that additional multi-state planning efforts will be occurring over the next several years as the mobility and congestion problems facing the nation's transportation system increasingly require a broader planning scope.

The purpose of this task is to examine recent multi-state corridor planning efforts and to identify institutional and technical aspects of such efforts that promoted success, and those factors that created challenges. For the multi-state planning efforts that have occurred over the past 10 years, what were the major factors of success? What were the specific factors that created barriers to successful multi-state planning? How were these studies organized? What was the role of the federal government, if any? How were the studies funded? And how did the funding scheme influence the organization of the study? The study will recommend specific strategies that should be considered in future multi-state studies.

The contractor's final report was sent to AASHTO and is posted at
https://www.transportation.org/sites/planning/docs/NCHRP%208-36%2845%29%20Multistate_Corridor_Planning.pdf