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A Study on the Implementation of Microscopic Traffic Simulation Model by Using GIS

GIS를 이용한 미시적 수준의 교통모형 구현에 관한 연구

  • Received : 2015.04.09
  • Accepted : 2015.08.26
  • Published : 2015.08.31

Abstract

This study aims to design and implement a traffic model that can simulate the traffic behavior on the microscopic level by using the GIS. In the design of the model, the vehicle in the simulation environment recognizes the GIS road centerline data as road network data reflecting number of lanes, speed limit and so on. In addition, the behavior model was designed by dividing functions into the environmental perception model, time headway distribution model, car following model, and lane changing model. The implemented model was applied to Jahamun-road of Jongno-gu district to verify the accuracy of the model. As a result, the simulation results on the Jahamun-road had no great error compared with the actual observation data. In the aspect of usability of model, it is judged that this model will be able to effectively contribute to analysis of amount of carbon emission by traffic, evaluation of traffic flow, plans for location of urban infrastructure and so on.

본 연구는 GIS를 이용하여 미시적 수준에서 교통현상을 시뮬레이션 할 수 있는 미시적 수준의 교통모형을 설계 및 구현하는데 목적이 있다. 이를 위해 차량이 GIS 도로 중심선 자료를 차선, 이동속도 등이 반영된 도로 네트워크 자료로 인식하는 방법론을 개발하였으며, 운전자의 주행 행태를 반영하기 위해 환경인식모형, 차두시간분포모형, 차량추종모형 및 차로변경모형으로 행태모형을 설계 및 구현했다. 모형의 정확도 평가는 종로구의 자하문길을 대상으로 관측자료와 예측 자료를 비교하였으며, 그 결과 시간대별 이동 속도를 매우 정확하게 예측한 것을 확인할 수 있었다. 본 연구를 통해 구현된 GIS 기반의 미시적 수준의 교통모형은 교통 탄소 배출량 분석, 교통류 평가 및 도시기반시설 입지 계획등의 다양한 분야에 효과적으로 기여할 수 있을 것으로 판단된다.

Keywords

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