SPATIO-TEMPORAL ANALYSIS OF TRAFFIC VOLUMES ON HIGHWAY NETWORKS - COMPARISON OF THE GREAT EAST JAPAN EARTHQUAKE DISASTER AND THE GREAT HANSHIN-AWAJI EARTHQUAKE DISASTER -

Abstract

 Daily traffic volumes on highway networks in the Great East Japan Earthquake Disaster were spatio-temporally visualized and analyzed in the light of post-earthquake operations. Approximately 2,300 km of highways was closed for emergency response after the main shock. Once the traffic restrictions and controls were lifted, traffic volumes got back to normal within two weeks. On the long-term basis, traffic volumes exceeded the pre-quake level by 60% to 100% during July through October, 2011. Average daily traffic volumes (ADT) on monthly basis in the Great Hanshin-Awaji Earthquake Disaster were also shown, and three kinds of highway network performance measures were compared between the two disasters.