Book Description

The manager of a freeway system has several objectives: provide a transportation system adequate to serve the needs of the area; operate the system in an effective and safe manner; and provide a system that is cost effective to install, operate, and maintain. The modifications discussed in this survey address all of these objectives. Because the modifications are usually declared temporary measures, their applications should be clearly defined in scope and intention. The types of problems addressed by these modifications include the following: overloading of the right lane; bypassing mainline queues; freeway bottlenecks; merge conflicts; preferential high occupancy vehicle operation; and maintenance and construction sites.