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Larry J. LeBlanc
Researcher at Vanderbilt University
Publications - 87
Citations - 4632
Larry J. LeBlanc is an academic researcher from Vanderbilt University. The author has contributed to research in topics: Network planning and design & Supply chain. The author has an hindex of 31, co-authored 86 publications receiving 4397 citations. Previous affiliations of Larry J. LeBlanc include Southern Methodist University.
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An efficient approach to solving the road network equilibrium traffic assignment problem
TL;DR: In this article, the authors present a solution technique for large scale road network equilibrium assignment and related flow problems with nonlinear costs, without explicitly considering any of the constraints, and without storing all of the individual decision variables.
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An Algorithm for the Discrete Network Design Problem
TL;DR: A nonlinear mixed integer programming model is developed, and strategies for a branch-and-bound algorithm are presented for solving the problem of determining which links should be improved in an urban road network so that total congestion in the city is minimized.
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Continuous equilibrium network design models
TL;DR: In this paper, it was shown that the optimization problem with continuous investment variables subject to equilibrium assignment is equivalent to an unconstrained problem which can be solved by direct search techniques and that the performance of both Powell's method and the method of Hooke and Jeeves is approximately the same with respect to computational requirements for a 24 node, 76 arc network.
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Forecasting emergency department crowding: a discrete event simulation.
Nathan R. Hoot,Larry J. LeBlanc,Ian Jones,Scott Levin,Chuan Zhou,Cynthia S. Gadd,Dominik Aronsky +6 more
TL;DR: By modeling patient flow, rather than operational summary variables, the simulation forecasts several measures of near-future ED crowding, with various degrees of good performance.
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A new class of instantaneous dynamic user-optimal traffic assignment models
TL;DR: Using the optimal control theory approach, two new DUO traffic assignment models for a congested transportation network are formulated, including new formulations of the objective function and flow propagation constraints, and are dynamic generalizations of the static user-optimal model.