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Noise Barrier Design:

A 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$. 

Wall Design Optimation Screen Image

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.

 Walldesign_3.jpg (124548 bytes)

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

Interested in a Walldesign Animation Tutorial Please downloaded: Tutorial

Send mail to webinfo@navcon.com questions or comments..
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Last modified: December 20, 2006