Analysis and Visualization of Traffic Conditions of Road Network by Route Bus Probe Data

In recent years, route bus service systems have been collecting and accumulating bus probe data such as GPS positions and traffic speeds from all route buses, day after day. In the present paper, we propose a method to analyze the conditions of a road traffic network from a huge amount of the route bus probe data. First, we show a conversion method from the probe data to a road segment data set. Second, we introduce analysis methods that compute the degree of congestion and reachable areas from the road segment data set. Finally, we discuss road segment data structures for rapid calculations of these analytical methods.