An Experimental Study on the Modeling System of the Public Bus Traffic Delay Index

Abstract

C-ITS is a system that provides automobiles and autonomous vehicles on the road with real-time traffic information, so it requires to collect data from traffic infrastructures and vehicles on the road, in real time. Among various traffic information sources, public transportation service, such as taxies and buses, provides and receives the large volume of data in the simple manner. In this study, the traffic delay index, which can model the traffic information, provided by public buses, is suggested in order to have the C-ITS provide systematic traffic information in the systematic information. The traffic delay index is a model that could identify the section and cause of traffic congestion by using an individual bus's real-time location information, in seconds; the traffic delay index of each bus was modelled through the use of the bus route information, actual time of arrival and departure, intersection crossing, and location and time of a periodical event at 30 second intervals, collected from the bus information system operated by the City S in Korea, and it was found that this traffic delay index was almost identical with actual traffic conditions.