What if the noise mitigation doesnt work?
There is no guarantee that the mitigation will work or that the actual impacts will be as projected. However, the MBTA will perform follow up testing after service starts to determine the actual noise levels caused by the trains. If the actual levels are found to be higher than the projections, the MBTA will investigate the cause and take appropriate corrective action. This circumstance is considered unlikely because the projections are based on measurements of actual MBTA commuter rail trains on the other two Old Colony lines to Middleboro and Kingston. As described above, the MBTAs experience is that this type of mitigation program is very successful and homeowners find that it provides a significant amount of noise reduction.
