Design And Implementation Of Virtual
Environments For Planning And Building
Sustainable Railway Transit Systems
Author(s)
M. Chandramouli, B. Huang, T.-Y. Chou, L. K. Chung
& Q. Wu
Abstract
This article explores the application of virtual reality techniques to rail transit
systems from the design and training perspective. We present virtual
environments for interactive 3D visualization of a rail transit station. We
describe the design and implementation of some 3D models, which offer a good
level of user-interaction and animation within a common rail transit system. The
virtual environments for interactive 3D visualization are modeled using Virtual
Reality Modeling Language (VRML), a web standard for creating virtual worlds.
Two basic categories of models are discussed in our study. The static 3D
models, which are used for planning and design purposes, are based on the
object-oriented approach. The dynamic models, which are used for simulation
and driver-training purposes, are based on the event-driven approach. Even
though a standalone VR application is not capable of a higher level of interaction
or animation, using SCRIPT nodes, JavaScript can be embedded in the program
to provide additional functionalities. JavaScripting can be used ingeniously to
manipulate and control some of the key animation and interpolation nodes to
provide powerful functionalities within the VR world. In this study, we integrate
the script programming language with virtual reality and elucidate simulations
that can be employed for driver training purposes. By employing these
visualization and simulation techniques, designers, engineers, planners, and
decision-makers can assess the plan beforehand. The virtual worlds serve as
immensely useful tools during the design process by helping the designers to
position themselves in photo-realistic 3D immersive environments wherefrom
the actual scenario can be viewed and modifications made accordingly.
Keywords: virtual environments visualization, animation, rail transit systems,
object-oriented approach, event-driven approach, object linking and embedding.
Keywords
virtual environments visualization, animation, rail transit systems,
object-oriented approach, event-driven approach, object linking and embedding.
Related Book
Other papers in this volume
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