|
1. Introduction
It is very common to present traffic noise
prediction result in two dimensional styles, for
example, in table form or on plan. However, as a
result of information technology evolution,
three dimensional (3D) visualisation technology
helps to effectively present the predicted noise
environment in assisting knowledge transfer and
promulgation to general public and other
stakeholders.
A Traffic Noise Modelling Standard Data
Exchange (TNMSDX) protocol was developed and
formulated to provide guidelines for the
preparation of traffic noise model input data in
a standard ASCII format. For a step further, a
conversion program (TNMSDX23D) was
developed to convert the input data and noise
prediction result to 3D visualisation in virtual
reality modelling language format (VRML). This
assists to present useful geographical and noise
data in an informative manner, which can be
easily transmitted via the Internet, having the
following purposes:
| (i) |
Improving overall appreciation of noise
environment for the public or other stakeholders
to understand proposed projects in
3D views via the Internet; |
| |
|
| (ii)
|
Allowing readers to easily surf around
the 3D environment and grasp noise information
using common Internet browsers with VRML
plug-in; |
| |
|
| (iii) |
Facilitating checking and vetting of road
traffic noise model input from various
computation
software. |
Professionals and consultants may freely
download the conversion program for
use. Source code is also avaliable
subject to open source license requirement.
Please contact Assessment and Noise
Group.
|
|