Study on Traffic Incident Management Boundary Based on Gis and Its Historical Travel Time Data †

Abstract

This study proposes a method to determine a spatial boundary of traffic operation and management techniques in strategic schemes against sudden traffic incidents based on historical data in the Seoul metropolitan area. Through the combination of data analysis and a geographical information system, it was found that there were general tendencies after the occurrence of an incident pertaining to its significance and how long the effects of incidents last. We classified the properties of accidents based on their duration and the space left available within the relevant road lane. This study found that the longer the incident’s duration, the greater the effect of the traffic incident. When the number of available lanes was one, the impact of the traffic accident was greater. In the case of two or more available lanes, the spatial boundary tended to be identical, while changes in travel speed were affected by incident type.