2013 Fiscal Year Final Research Report

Categorization manner for conflict situations and its probability considering traffic route patterns

Research Project

Project/Area Number	23686073
Research Category	Grant-in-Aid for Young Scientists (A)
Allocation Type	Single-year Grants
Research Field	Civil engineering project/Traffic engineering
Research Institution	Japan Automobile Research Institute
Principal Investigator	IMANAGA Hisashi 一般財団法人日本自動車研究所, 安全研究部, 研究員 (90384734)
Project Period (FY)	2011-04-01 – 2014-03-31
Keywords	Traffic accident / Drive video recorder / Traffic conflicts
Research Abstract	This study provides categorization manner for conflict situations recorded by Drive video recorder. The advantage of Drive video recorder data to present traffic accident data is considering third party's effects (e.g. obstruction of view by parking vehicle) related to conflict occurring except direct combatants. Proposed one could categorized vehicle to vehicle conflicts by 80 patterns. In addition, for calculating risk of each conflict, index of exposure not simple length of driving but considering traffic situation (road configuration, number of lane, existence of other vehicles) are proposed. In case of using proposed exposere index, relative weights of caluculated risk of occurring conflicts are differ from in case of exosure index of simple driving length. And it allows much adjusted risk analysis considering detailed traffic situations related to conflict occurring patterns.