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SoundPLAN - Noise Barrier
(Wall) Design - Application Note
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Noise Barrier Optimization conducted by
Navcon Engineers for a Lightweight Train System. The first optimization does not
have any restrictions on the maximum barrier height. The Cost vs. Reduction
Histogram for 15 Receiver Locations shows the overall cost will be 526,084 US$.

| The left graphic above shows:
Y-Axis: Sound
Level Contribution [dB(A) ]
X-Axis: Cost [ 1000 US$] [User has option to optimize base on barrier surface.]
Colored Lines: Represent 15 Receiver Locations |
The right graphic above shows:
Site Map
with receiver location
Green receiver - meet target noise levels
Red receiver - do not meet target noise levels |
The 2nd optimization restricts the maximum barrier height to 12 ft. The
history shows a cost vs. noise reduction breakpoint at iteration step 65. With the
barrier height restriction step 65 represents the most cost effective barrier. An
extension of the barrier beyond iteration step 65 increase the overall cost of the noise
barrier but it does not significantly improve the noise levels in the community.

Application:
- Cost and surface area optimization of noise barrier along Highway & Railroad Systems
or Industrial Areas
- Visualization of Breakpoint (where cost surpasses reduction)
- Effectiveness study for noise barrier scenarios with different parameter (height,
length, material, active receiver locations)
- Documentation of the noise barrier design
- 3D - Graphic visualization of noise barrier
The Walldesign Animation Tutorial can be downloaded by clicking here: Tutorial.
Please copy the Walldesign Tutorial (1 MB zip) into a temporary directory and unzip
the file. The zip file includes Walltutorial.bat. Double click on the file
Walltutorial and ScreenCam will play the Wall Design Tutorial. To run the
screen cams please download the Screen Cam player:
scplayer.exe
Questions / Comments - please send mail to
webinfo@navcon.com ..
Copyright © 1997 - 2011
Navcon Engineering Network
Last modified:
July 06, 2011
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