Intelligent Transportation Systems (ITS) improve transportation safety and mobility and enhances productivity through the use of advanced communications technologies.  ITS encompass a broad range of wireless and wire line communications-based information and electronics technologies.  When integrated into the transportation system's infrastructure, and in vehicles themselves, these technologies relieve congestion, improve safety and enhance American productivity.  New applications and technologies are being developed every day. Examples of ITS technologies include On-board navigation systems, Roadbed sensors, Traffic video/control technologies, Variable message signs and Fleet tracking and weigh in-motion technologies.