diburning wrote:Its an old system where the (single) switch point is thrown (magnetically?) based on whether power is drawn from the overhead. I think it was coast to go whichever route is on the left, operate under power to take the other route. Then, the switch either has a timer, or the car traversing the switch has a release lever mounted to the rear, to return the switch to the default position.
Return to Massachusetts Bay Transportation Authority (MBTA)
Users browsing this forum: No registered users and 6 guests