Browsing by Author "Lee, Chifung"
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Item Development of an Integrated Simulation Package for Freeway Design, Operations and Adaptive Traffic Management. Phase I: Enhancement of the Kronos Simulation Program(1992-01) Michalopoulos, Panos; Kwon, Eil; Lee, Chifung; Mahadevan, Gopalakrishnan; Kang, JeongGyuThe main purpose of this project is to make KRONOS, a microcomputer-based freeway simulation program under development operational by resolving the following problems problems: detailed field testing and adjustments of the program with real freeway data, analysis of sensitivities in simulation models with respect to the variations in input data, and enhancements of the input/output module to be suitable for the Mn/DOT planning environment. In addition, a new simulation module to treat special types of freeway segements incluing merging/diverging of two freeways is developed and incorporated into KRONOS in this project. The major accomplisments made in this project are summarized.Item Energy Conservation Through Improvement of Freeway Operation: Development of a Prototype Integrated Simulation/Database Package(1993-09) Kwon, Eil; Michalopoulos, Panos; Lee, Chifung; Xie, Hui; Tong, SaiThe main objective of this research is to develop a prototype version of an integrated simulation/database package. The specific objectives include: 1) Development of a framework for an integrated simulation/database package, 2) Development of a prototype version of a graphical freeway traffic database management system, 3) Enhancement of freeway traffic flow models for various geometric types, 4) Preliminary study to develop an optimal calibration procedure for simulation parameters.