| Title |
The Influence of Traffic Information based on VMS(Variable Message Sign) on the Selection of Drivers" Route |
| Keywords |
VMS(Variable Message Sign);drivers" selection of route;travel time saving;rate of route change;sensitivity;도로전광판;통행단축시간;경로전환;전환율;민감도 |
| Abstract |
The provision of traffic information plays an important role in increasing social benefit not only by saving travel time for individuals but also by improving the efficiency of road operation. VMS (Variable Message Sign) helps on-wheel drivers easily understand the road situation, and also provides real-time traffic information to people on the streets. However, it has not been sufficiently studied on how traffic information based on VMS influences on the drivers" selection of route. This study investigated how drivers use VMS traffic information and how they are satisfied with it. Then, the model of drivers" route selection was specified with the types of traffic information and the expected travel time to examine the influence on the selection of drivers" route. The model was estimated and analyzed in three types according to the condition of detour roads, and the rate of route change and the degree of sensitivity was calculated from the estimation. The results of analysis are as follows. the 1<SUP>st</SUP> type model showed the 10% of route change for the travel time saving of 5minutes, and the 81.6% of route change for the travel time saving of 20minutes. The 2<SUP>nd</SUP> type led to the range of route change from 14.2% to 92.7% over the 5 through 20 minutes of travel time saving. The 3<SUP>rd</SUP> model resulted in the 99.1 % of route change. The sensitivity of route change showed the highest for the travel time saving of 11 minutes with the 1<SUP>st</SUP> type model, 9 minutes with the 2<SUP>nd</SUP> type model, and 5 minutes with the 3<SUP>rd</SUP> type model respectively. |