說明 
338 p 
附註 
Source: Dissertation Abstracts International, Volume: 6505, Section: B, page: 2520 

Adviser: Athanasios Ziliaskopoulos 

Thesis (Ph.D.)Northwestern University, 2004 

This dissertation focuses on the incorporation of buses into both systemoptimal and user equilibrium DTA models. Specifically, a cell transmissionbased, single destination, system optimal integer linear programming model of intermodal trips on a network of cars and buses is presented, and the model is solved on a test network using standard mathematical programming methods. Also, the internodal user equilibrium problem is formulated as a variational inequality, and an inner approximation solution algorithm that minimizes an equilibrium gap function is presented. Algorithm convergence is proven for cases with continuous, monotonic cost functions, and heuristic variations are proposed for problems where these assumptions do not hold. While the inner approximation assignment algorithm may be applied with any traffic propagation model for calculation of link costs, the approach implemented in the dissertation is a cell transmissionbased simulation model. Further, for path generation, a labelcorrecting intermodal least cost path algorithm, which accounts for both timevarying and fixed travel and transfer costs, is presented with proofs of convergence and correctness 

Computational results are presented for the inner approximation DTA model first on a singlemode automobile network test network, as well as on a largescale multimodal network of cars and buses. This multimodal automobile assignmentbased approach is used in a realworld evaluation of the regional impacts of transit signal priority (TSP). Key findings relate not only to the impacts of TSP, but also to the practical aspects of realistic regional simulation, such as challenges in data acquisition and model validation. In addition, computational results are presented to explore the behavior of the inner assignment algorithm for the intermodal problem 

School code: 0163 

DDC 
Host Item 
Dissertation Abstracts International 6505B

主題 
Engineering, Civil


0543

Alt Author 
Northwestern University

