Dynamic travel time provision for road networks

The application domain of intelligent transportation is plagued by a shortage of data sources that adequately assess traffic situations. Typically, to provide routing and navigation solutions map attributes in the form of static weights as derived from road categories and speed limits used for road networks. With the advent of Floating Car Data (FCD) and specifically the GPSbased tracking data component, a means was found to derive accurate and up-to-date travel times, i.e., qualitative traffic information. FCD is a by-product in fleet management applications and given a minimum number and uniform distribution of vehicles, this data can be used for accurate traffic assessment and also prediction. This work showcases a system that facilitates the collection of FCD, produces dynamic travel time information, and provides value-added services based on the dynamic travel times. The essential components that will be discussed are a Web-services-based data collection approach, sophisticated ...

• Type: Conference
• Year: 2008
• Where: GIS
• Authors: Dieter Pfoser, Sotiris Brakatsoulas, Petra Brosch, Martina Umlauft, Nectaria Tryfona, Giorgos Tsironis
• Keywords: Car Data, Data Collection Approach, Data Management Architecture, Database, GIS 2008