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http://dx.doi.org/10.7470/jkst.2014.32.6.567

Macroscopic-Microscopic Sequential Traffic Simulation Analysis and Dynamic O/D Estimation for Sub-area  

Lee, Jin Hak (The Seoul Institute)
Kim, Ikki (Dept. of Transportaion & Logistics Eng., Hanyang University-ERICA campus at Ansan)
Kim, Dae Hyun (Doosan Engineering & Construction)
Publication Information
Journal of Korean Society of Transportation / v.32, no.6, 2014 , pp. 567-578 More about this Journal
Abstract
The study suggested a method to improve analysis accuracy such that the interactive effects of transportation changes between outside and inside of sub-areas were sequentially considered in the analysis by linking a macroscopic network analysis and a microscopic traffic simulation. A dynamic O/D estimation method was developed for practical implement of sub-area microscopic simulation analysis by using the results of macroscopic network analysis, the results of selected link analysis at the cordon line of the sub-area, departure time data of household travel survey, timely observed traffic volume data at the cordon. This estimated dynamic O/D for the sub-area made it possible to analyze traffic phenomena in details. Various detailed phenomena such as traffic queues, delay at intersection, and conflicts between vehicles, which is impossible to be grasped through a macroscopic analysis, can be analyzed with the dynamic microscopic traffic analysis. Through implementing an empirical study and validation, the study provided a reference result about accuracy of a microscopic traffic simulation of a sub-area to help its application for real transportation policy analysis.
Keywords
household travel survey; dynamic OD; microscopic traffic simulation; static OD; subarea analysis;
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