One of the major criticisms of the service is that, especially on the Roxbury section, the Silver Line behaves just like a city bus — with all the traffic delays and slow boarding that entails.

One strategy would be to make inbound trips from the airport free for good. Another approach would be for Massport to build enclosed boarding areas with turnstiles so passengers could pay before the bus arrives, like the existing Silver Line station at the World Trade Center stop.