If you are one of the hundreds of Milton commuters who take the Mattapan trolley into Ashmont then you are very familiar with the uncanny screech that the trolley produces as it makes the turn to head back from Ashmont to Mattapan. It’s painful. As a rider you it is a brief albeit acoustically jarring moment. Imagine if you lived nearby.

There is an article on today’s Bostoncom site that reports on the issue and neighbors concern.

from Boston.com

Neighbors say the noise tops 100 decibels at Ashmont Station – At its best, the noise emitted by the MBTA’s Mattapan Trolley as it turns at Ashmont sounds like the long, low moan of a whale. At its worst, it is like nails on a chalkboard coupled with a piercing whistle, drawn out for half a minute. (Read the full story here.)