Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/74025
Title: A bilevel programming approach to simultaneously estimate O-D matrix and calibrate link travel time functions from observed link flows
Authors: Meng, Q. 
Lee, D.-H. 
Cheu, R.L. 
Issue Date: 2004
Source: Meng, Q.,Lee, D.-H.,Cheu, R.L. (2004). A bilevel programming approach to simultaneously estimate O-D matrix and calibrate link travel time functions from observed link flows. Proceedings of the International Conference on Applications of Advanced Technologies in Transportation Engineering : 56-60. ScholarBank@NUS Repository.
Abstract: This paper first proposes a bilevel programming model to simultaneously estimate O-D matrix and calibrate parameters in link travel time functions from observed link flows under the deterministic user equilibrium condition. It then transforms the non-differentiable bilevel programming model into a continuously differentiable nonlinear programming model by constructing a gap function. Accordingly, the augmented Lagrangian method can be employed to identify the solution of the problem.
Source Title: Proceedings of the International Conference on Applications of Advanced Technologies in Transportation Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/74025
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