A Vehicle Guidance System Using GPS-GIS Integration in Highway Transportation and Administration

摘要

A vehicle guidance system has been designed for Egnatia Motorway. Egnatia Motorway spans southern Balkan Peninsula and involves approximately 2.000 km of non-urban road network, with 300 interchanges and intersections. The vehicle guidance system is based on GPS technology adapted on a fleet of vehicles. This, in conjunction with a GIS background of the road network, a telecommunication subsystem and other suitable equipment permits the efficient navigation of a fleet of patrol vehicles. A similar system is currently in use in Athens external ring road named Attiki Odos. The logical part of the system consists of algorithms that could evaluate and select an optimum route in a road network. A compass and the vehicle odometer can be used to correct extrapolated data where/when GPS signal is temporarily lost, especially when specific cargos are monitored.