http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
李仁遠,朴魯峰,朴鍾日 弘益大學校 科學技術硏究所 2005 科學技術硏究論文集 Vol.16 No.-
The development in the information technology area has enabled drivers to use the ATIS (Advanced Traveller Information System) more easily by establishing ubiquitous environment where users may access the network at any place and time. The ATIS is the central part of the ITS (Intelligent Transportation System). The travel time of a transportation network at rush hours, however, has been calculated based on a simple proportional function between the traffic volume and travel time. This simplified method has been adopted in the trip assignment model for technical reasons resulting in the actual traffic flow at rush hours not being properly reflected. Therefore, it has fundamental limits in terms of the ever changing traffic conditions and short term prediction. In addition, the static trip assignment, which is mainly used in the trip assignment of traffic flow, does not allow any time-dependent changes. Under this assumption, the static trip assignment may predict relatively long-term average traffic flow, but cannot describe such characteristics as changing in a time-dependent manner. This assumption also supposes that the traffic flow has a uniform distribution in the applied area, which is regarded as another flaw of the static assignment method. As a result, various dynamic methods analyzing traffic conditions of a transportation network have been recently developed. Against this background, the objectives of this study are as follows: To develop HISIM (Hong Ik SIMulation) model, apply the travel time calculation formula developed based on the previous BPR formula and Queueing theory to this model, and present values and limits of each model by simulating in the imaginary network and comparatively analyzing its results.