This book addresses and explains the concepts, mechanisms, design, and performance of different routing protocols on the Motorway Surveillance System which based on the infrastructureless networks (Ad Hoc) as a one of the most important applications used today to improve physical safety on highways. This book also covers performance evaluations, comparisons, and analysis for three routing protocols (AODV, DSR, and OLSR) on a Motorway Surveillance System and a new algorithm to modify the Ad Hoc On-Demand Distance Vector (AODV) routing protocol in order to improve the routing performance in motorway surveillance systems.