Roads/Highways

The Freeway Service Patrol (FSP) is an incident management program implemented by Caltrans, the California Highway Patrol and local partner agencies to quickly detect and assist disabled vehicles and reduce non-recurring congestion along the freeway during peak commute hours. The first FSP program was piloted in Los Angeles, and was later expanded to other regions by state legislation in 1991. As of June 2004, there were ten participating FSP Programs operating in California, deploying over 315 tow trucks and covering over 1,500 (center-line) miles of congested California freeways.The...

The Freeway Service Patrol (FSP) is an incident management program implemented by Caltrans, the California Highway Patrol and local partner agencies to quickly detect and assist disabled vehicles and reduce non-recurring congestion along the freeway during peak commute hours. The first FSP program was piloted in Los Angeles, and was later expanded to other regions by state legislation in 1991. As of June 2013, there were fourteen participating FSP Programs operating in California, deploying over 360 tow trucks and covering over 1,800 (center-line) miles of congested California freeways....

Pricing transportation infrastructure, either to achieve a desired outcome or to raise revenue, is a concept dating back to early-and mid-20thcentury economics and transportation scholarship. Different approaches to pricing (e.g., area-wide pricing, vehicle miles traveled, express lanes, etc.) have been adopted in parts of Europe and Asia; some strategies cover all road users, some only passenger vehicles, and others only commercial and goods movement vehicles. Pricing, as a revenue source, has recently gained momentum in the U.S., driven by federal legislation (MAP-21; FAST Act) and state...

Although we lack a complete theory of the motion of individual cars, there are many simple facts that even the most inexperienced driver knows and there are others which we could determine through experiment if we thought these facts were worth the effort required to find them. The lack of such a theory however, should not deter us from constructing a framework of possible theories consistent with what is known and seeing if such an incomplete theory can give any useful information about the gross aspects of traffic.