Diversion Rate Analysis for Various Detour Information on VMS -Focusing on National Road Number 3-
Kee-Choo Choi, Jeong-Ah Jang, Sunghyun Kim, Jong‐Sik Kim · Journal of the Korean Society of Civil Engineers · 2004
Recent proliferation of VMSs (Variable Message Signs) on roadway networks is based on an assumption that the installation of VMSs relieves traffic congestion by diverting current traffic to detour routes, if exist. The purpose of this paper is to verify this assumption. For this, stated preference based actual survey has been conducted to build a logit based information evaluation model. For national route number 3, an average of 21 % of diversion rate has been identified for various messages and thereby the total network travel time can be reduced. Factors affecting the diversion rate are sex, vehicle type, trip purpose, and the recognition of detour routes. Based on these, some VMS operational strategies are highly required for better utilization of the roadway networks around national route number 3.