TY  - JOUR
PY  - 2010//
TI  - Development of conflict techniques for left-turn and cross-traffic at protected left-turn signalized intersections
JO  - Safety science
A1  - Oh, Juhwan
A1  - Kim, Eugene
A1  - Kim, Miseong
A1  - Choo, Sangho
SP  - 460
EP  - 468
VL  - 48
IS  - 4
N2  - To design comprehensive traffic safety measures, the risk of the occurrence of traffic accidents must be objectively evaluated. It is difficult, however, to evaluate the effects of traffic measures in terms of the change in the number of traffic accidents, because traffic accidents are unpredictable and rare events. Therefore, this study used a traffic conflict technique to objectively evaluate traffic safety at intersections. In this study, traffic conflicts that occur at the time of a signal violation were differentiated according to type, and a traffic conflict technology was developed that would consider the severity of each type of conflict. To apply this method, traffic images were collected from the Jungja intersection and the Naejung intersection in Sungnam City, Korea and were analyzed using traffic data by means of image procedure technology. The analyses showed that of the four levels of differentiated conflict conditions, the Level 1 condition occurred most often, followed by Level 2, which occurred much less frequently than Level 1. Level 3 (serious conflicts) and Level 4 (dangerous conflicts: accidents) conditions were not detected.<p />
LA  - en
SN  - 0925-7535
UR  - http://dx.doi.org/10.1016/j.ssci.2009.12.011
ID  - ref1
ER  -