to Ruggles in May 1987 along with the relocation of the Orange Line to the Southwest Corridor. A 2017 study of fare-card and vehicle-location data suggested that the 23 and 28 routes were overcrowded, and that this could be ameliorated by extending the 29 route and increasing its service frequency. A city-funded program includes fare-free service on routes 23, 28, and 29 from March 1, 2022 to February 29, 2024. No changes to the route were proposed in the May and November 2022 network plans. 28 The 28 Mattapan Station–Ruggles Station route provides service through the Grove Hall and Mattapan neighborhoods on Blue Hill Avenue, a major radial arterial. Blue Hill Avenue has long been a busy trunk route; in 1945, route 29 Mattapan–Egleston peaked at 1.5 minute headways during the morning rush hour. Streetcars formerly had a dedicated right-of-way on Blue Hill Avenue; streetcars were moved into mixed traffic in stages between 1940 and 1950, and replaced with buses in 1955. With the May 1987 changes to the bus network, route 28 was established to supplement route 29 service; both ran from Mattapan to Ruggles via different routings. In December 1989, route 28 became the dominant service on Blue Hill Avenue, and route 29 was relegated to a rush-hour-only route running only to Jackson Square. Shelters were added at some stops in 2001. From December 2006 to June 2010, short turn service between Franklin Park and Dudley (Ruggles after March 2007) was operated in the morning peak as route 25. A number of Silver Line expansion corridors were considered in the 2003 Program for Mass Transportation (PMT); most were given brief consideration but not acted upon. One, a bus rapid transit (BRT) express overlay for the 28, was briefly revived in 2006 as part of Silver Line Phase III plans. In 2009, the state proposed to add a limited-stop BRT line called the 28X on the corridor, which was then the busiest bus corridor in New England. The plan called for dedicated bus lanes on Blue Hill Avenue and queue jumps on Warren Avenue. The project was expected to cost $114 million. Construction was to begin in April 2010, with initial service at the beginning of 2012. However, the proposal quickly drew opposition: it had been announced at a press conference by state officials without local officials having even been informed of the project, leading to accusations that the