Boston's decision to permanently set up a dedicated weekday morning bus and bike lane on Washington Street between Roslindale Square and Forest Hills was based not just on surveys of people taking the newly speeded up buses during two pilot runs but on data collected in a 2016 study about just whose cars would be displaced by the elimination of parking in the morning.
The study, by the Metropolitan Area Planning Council, found that at 10 a.m., just 17% of the spaces on the northbound side of the road were taken up by cars belonging to local residents:
Many cars were registered to areas outside the city with fewer or pricier transit options.
Based on this information along with the fact that the corridor has no parking fees or resident permit requirements, MAPC concluded that a large number of the parking spaces on Washington Street between Roslindale Square and Forest Hills are being utilized during the day not by local residents, but instead by commuters using the corridor for free all-day parking before heading to downtown Boston via the Orange Line train.
The new morning lane begins June 18. The city has yet to set a similar test of a dedicated lane in the afternoon from the T station to Roslindale Square.