The Town of Chevy Chase will be the only section of the planned 16-mile Purple Line light rail that includes noise walls, a fact transportation planners emphasized on Wednesday in an attempt to quell noise concerns from residents.

It’s unclear if it worked.

After a roughly hour-long presentation that delved into the science of federal transportation noise requirements and included various soundbites of what a passing Purple Line train car might sound like, some at the meeting held in the Town of Chevy Chase’s Town Hall remained skeptical.

A few residents with houses backing up to or near where the Purple Line would run said readings of existing ambient noise levels (which provide a baseline for how much noise can be added via a train) were inaccurate. One asked Purple Line project manager Mike Madden if any more noise mitigation measures would be added, or if she should start looking at moving away.

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