A Study on Synthetic OD Estimation Model based on Partial Traffic Volumes and User-Equilibrium Information
0
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
This research addresses the problem of estimating Origin-Destination (O-D) trip matrices from link volume counts, a set of unobserved link volumes and information of user equilibrium flows in transportation networks. A heuristic algorithm for estimating unobserved link flows is derived, which provides volume estimates that are approximately consistent with both observed flows and an assumption of user equilibrium conditions. These estimated link volumes improve the constraints associated with the synthetic OD estimation model, providing improved solution search procedure. Model performance is tracked in terms of the root mean square errors (RMSE) in predicted travel demands, and where appropriate, predicted linked volumes. These results indicate that the new model substantially outperforms existing approaches to estimating user-equilibrium based synthetic O-D matrices.
Abstract
This research addresses the problem of estimating Origin-Destination (O-D) trip matrices from link volume counts, a set of unobserved link volumes and information of user equilibrium flows in transportation networks. A heuristic algorithm for estimating unobserved link flows is derived, which provides volume estimates that are approximately consistent with both observed flows and an assumption of user equilibrium conditions. These estimated link volumes improve the constraints associated with the synthetic OD estimation model, providing improved solution search procedure. Model performance is tracked in terms of the root mean square errors (RMSE) in predicted travel demands, and where appropriate, predicted linked volumes. These results indicate that the new model substantially outperforms existing approaches to estimating user-equilibrium based synthetic O-D matrices.
참고문헌 (19)
- W. H. K. Lam, "Estimation of origin-destination matrix from traffic counts: A comparison of entropy maximizing and information minimizing models", Transportation Planning and Technology, 16, pp.85~104 (1991)
- H. Yang, "Estimation of origin-destination matrices from link traffic counts on congested network", Transportation Research, 26B, pp.417~434 (1992)
- M. Turnquist, "Estimation of trip tables from observed link volumes", TRB Transportation Research Record, 730, pp.1~6 (1979)
- A. Han, "Trip table synthesis for CBD networks: Evaluation of the LINKOD model", TRB Transportation Research Record, 944, pp.106~112 (1983)
- Y.Gur, "Estimating trip tables from traffic counts: Comparative evaluation of available techniques", TRB Transportation Research Record, 944, pp.113~117 (1983)
- S. Cho, "Improved user equilibrium based method for estimating trip tables", J. Transportation Engineering, 126(6), pp.492~497 (2000)
- S. Nguyen, "Estimating an O-D matrix from network data: A network equilibrium approach , Publication 87" (1977), Centre de recherché sur les Transports, University de Montreal
- L. LeBlanc, "Selection of a trip table which reproduces observed link flows", Transportation Research, 16B, pp.83~88 (1982)
- H.Spiess, "A gradient approach for the O-D matrix adjustment problem" (1990), Centre De Recherché Sur Les Transports Publication no. 693
- C.Fisk, "Trip matrix estimation from link traffic counts:The congested network case", Transportation Research, 23B, pp.331~356 (1989)
- J. Oh, "Estimation of trip matrices from traffic count: An equilibrium approach, Mathematics in Transport Planning and Control", pp.35~44 (1992), Clarendon Press
- H. Yang, "The equilibrium- based origin-destination matrix estimation problem", Transportation Research, 28B, pp.23~33 (1994)
- L.Willumsen, "Simplified transportation models based on traffic counts", Transportation, 10(3), pp.257~278 (1981)
- H. V. Zuylen, "The information minimising method: validity and application to transport planning, New developments in modelling travel demand and urban systems" (1978), Saxon
- H. V. Zuylen, "The most likely trip matrix estimated from traffic counts", Transportation Research, 14B, pp.281~293 (1980)
- H. Lo, "Estimation of an origin-destination matrix with random link choice proportions: a statistical approach", Transportation Research, 30B, pp.309~324 (1996)
- R. Sivanada, "A new approach for estimating origin-destination trip tables from traffic counts", Proc. Transportation Research Board 73rd Annual Meeting (1994)
- H. J. Lee, "The estimation of O-D matrix from traffic counts using conjugate gradient method in nationwide network", J. Korean Society of Transportation, 23(3), pp.61~71 (2005)
- Y. T. Lim, "Y. T. Lim", J. Korean Society of Transportation, 24(4), pp.141~159 (2006)