Application of DGPS for Collision Avoidance in Intelligent Transportation Systems In a Wireless Environment

808574DOCResearch PaperCollision avoidance systemsGlobal Positioning SystemWireless communication systemsTest vehiclesOloufa, Amr A.Aty, Mohamed A.University of Central Florida. Dept. of Civil and Environmental EngineeringFlorida. Dept. of TransportationNTL-INTELLIGENT TRANSPORTATION SYSTEMS-INTELLIGENT TRANSPORTATION SYSTEMSUS Transportation CollectionThe Global Positioning System (GPS) is a satellite based radio-navigation system. A relatively large number of vehicles are already equipped with GPS devices. This project evaluated the application of Global Positing System (GPS) technology in collision avoidance. The system implemented in this research consists of a GPS device on a vehicle that is capable of receiving differential processing signals. Using wireless communications, the vehicle radio sends the vehicle's position to a central traffic server, which evaluates potential collision scenarios with another simulated vehicle. If a collision is imminent, the server radios back a cautionary message to the roving vehicle. This project proves the viability of using GPS technology for collision detection avoidance. As the majority of the components used for this research are expected to be standard items in vehicles, the main cost and challenge will be the computational infrastructure needed to detect collisions and warn vehicles in an extremely short period of time. For this reason, more research is needed to evaluate whether collision avoidance calculations should be implemented on a central traffic server or within each vehicle, where vehicle computers only evaluate traffic in each vehicle's vicinity. This document downloads as a self-opening Word document