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原文传递 APPLYING VEfflCLE DYNAMICS ANALYSIS AND VISUALIZATION TO ROADWAY AND ROADSIDE STUDIES

题名：	APPLYING VEfflCLE DYNAMICS ANALYSIS AND VISUALIZATION TO ROADWAY AND ROADSIDE STUDIES
作者：	R. Wade Allen Theodore J. Rosenthal Systems Technology, Inc. Jeffrey P. Chrstos
关键词：	Roadway Design, Vehicle Dynamics Model, 3D Graphics. IHSDM. VDANL
摘要：	This report describes die application of vehicle dynamic modeling and visualization to highway safety design within the Interactive Highway Safety Design Model (IHSDM). This concept is intended to allow highway to test roadway designs by computer simulation of vehicle encounters with roadway geometric and to assess roadway alignment and visibility features using three-dimensional (3D) graphical visualization. The procedures are intended to allow running a vehicle through design alternatives, to provide metrics of vehicle performance, and to permit visualization of die vehicle/roadway encounter. This report reviews the overall design concept, the role of the Vehicle Dynamics Module (VDM) in providing performance metrics for a highway design, and the implementation of visualization procedures for viewing vehicle/roadway encounters including roadway features. An existing VDM (VDANL: Vehicle Dynamics Analysis, Nonlinear) was upgraded for this application to permit on- and off-road operation, articulated vehicles, and generalized roadway design description. A simple interface and driver model was developed for running vehicles over highway designs. Several key performance measures were also developed for assessing the design, and were incorporated into die interface output. Several appendices give detailed technical background on the VDM and vehicle parameter files. Software is provided with this report and an appendix includes a user’s guide for the installation and operation of the VDM software. Some 3D graphics modeling and digital editing were carried out on a personal computer (PC) workstation. The emphasis in this project was in implementation of software on PC workstations. The applications were successful, and it is concluded that Intel/Windows NT PC workstations are quite capable of carrying out IHSDM/VDM analysis and visualization.
报告类型：	科技报告