| Title |
Delay Predicting Modeling of Urban Freeway using Lane-based Characteristics |
| Authors |
김태곤 ; 정유나 ; Fady M. A. Hassouna |
| Keywords |
urban freeway;travel delay;entrance and exit ramps;junction influence area;modeling;도시고속도로;통행지체;유출입연결로;접속영향권;모형구축 |
| Abstract |
Travel delay (TD) denotes a time difference between the running time of vehicle with a normal speed and the travel time of vehicle with a reduced speed for traversing the same segment of roadway, and is sometimes used as a measure of time delayed in the junction or bottleneck areas of roadway. Urban freeways in the foreign countries are often suffering from traffic delay within the entrance and exit ramp junction influence areas, as a freeway with the speed limit of 80 km/h or higher only during the rush hours, but those in our country are especially experiencing severe traffic delay on the mainline segments as well as within the entrance and exit ramp junction influence areas, as a freeway with the speed limit of 80 ㎞/h or less regardless of the rush how"s. So, the purpose in this study is to develop the models that could predict the travel delay within the ramp junction influence areas of urban freeway having the geographical features which differ from the expressway, and also examine the validity of the travel delay predictive models developed. |