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A Development of Macroscopic Simulation Model for Interrupted Flow using Shockwave  

Lee, Ho-Sang (서울시립대학교)
Jung, Young-Je (서울시립대학교)
Kim, Young-Chan (서울시립대학교 교통공학과)
Kim, Dae-Ho (경기도청 교통국 교통개선과)
Publication Information
Journal of Korean Society of Transportation / v.26, no.1, 2008 , pp. 191-201 More about this Journal
Abstract
It has been employed TRANSYT-7F and NETSIM to evaluate the validity and effectiveness of improvement on TSM(Transportation Systems Management). But T7F is hard to describe platoon compression and dispersion in actually, and NETSIM takes a long time for network coding, calibration and have difficulty in setting up saturation flow. While Shockwave Model have advantage which can describe platoon compression and dispersion in actually and shorten hours, convenience of application. But Shockwave Model apply unrealistic traffic flow relation ship(U-K curve) and simplify platoon because of difficulty in calculating shockwave's position and cross. For solving limitation of existing shockwave models, It develop new model with 2-regime linear model, New platoon model, Extended shockwave, etc. For verifying the validity of the proposed model, it was compared with delay of T7F and NETSIM by offset variation. In conclusion, it is thought that proposed model have outstanding performance to simulate traffic phenomenon.
Keywords
Traffic Operation; Macroscopic Simulation; Shockwave; Interrupted Flow; Time-Space Diagram;
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