CASE STUDY FOR MONITORING INUNDATION PROCESS DURING FLOODS USING ETC 2.0 PROBE DATA

Abstract

 The possibility of monitoring inundation process during floods using ETC2.0 probe data was investigated by comparing between the probe data and numercal flood simulation during three severe flood events in Japan. The comparison indicates that the traffic volume significantly reduced during the floods. In addition, the behavior of a single car during the flood corresponded to the inundation process. To further understand inundation process, “Dimensionless vehicle traffic volume” defined by the ratio of the traffic volume during flood stage to mean traffic volume during normal stage was computed. This was significantly reflected the progress of inundation on a main road during the flood. Consequently, our results demonstrate that ETC 2.0 probe data can applicable to monitor the inundation process during floods