Noise Study

Noise & Vibration Technical Report
   Appendix A - Noise Measurement Locations
   Appendix B - Noise Measurement Results
   Appendix C - Noise Impact Analysis   
   Appendix D - Noise Impacts with Bells
   Appendix E - Noise Barrier Analysis
   Appendix F - Vibration Analysis
   Appendix G - Bus Noise Analysis
Noise Study Technical Memorandum - RTD Policy Implementation
Final Noise Barrier Locations

Noise Barrier Location Determination Process - Powerpoint presentation

Moderate Noise Impacts Policy

Noise Barrier Change "Opt Out" Policy

Noise Barrier Change Form

Noise Wall Changes from the FONSI

KM Chng, the noise and vibration sub-consultant to David Evans & Associates, has conducted the follow up noise and vibration analysis along the West Corridor. They placed detectors along the corridor to capture existing conditions of noise and vibration.  Baseline noise levels were determined and initial specific impacted areas were identified.  They then looked at what noise impact light rail would make on the corridor once it was implented and determined which properties are impacted by noise.

Properties affected by noise from the light rail fall into one of two categories, as determined by FTA - severe or moderate.  Moderate impacts are examined and determination of mitigation was made according to the "Moderate Noise Impact Policy".  All moderate impacts remaining after the policy is applied, as well as any properties with severe impacts will be mitigated with the noise barriers. 

Properties who are affected by noise and noise walls have been contacted and options have been presented.  Noise wall aesthetics were presented at the UDC meetings in August.