effective than keeping the trolley as rail line. However, Boston officials have fought to cancel this transformation because although this would be more cost effective, property values would decrease and would "most importantly, torpedo a mixed-use, mixed-income residential-retail project slated for the Mattapan station parking lot". At this point in time, the project to convert the Trolley into buses will not be carried out. The Fairmount Line of the MBTA Commuter Rail also serves Mattapan at the Morton Street and Blue Hill Avenue stations, providing service to downtown Boston and the suburbs. The Fairmount Corridor Commuter Rail Line currently runs from South Station south through the Boston neighborhoods of Dorchester, Roxbury, Mattapan and terminates in Readville section of Hyde Park. It consists of approximately 9.2 miles of track, nine stations (South Station, Newmarket, Uphams Corner, Four Corners / Geneva, Talbot Avenue, Morton Street, Blue Hill Avenue, Fairmount, and Readville) and forty-one bridges. It is the only Commuter Rail Branch that exclusively serves the City of Boston and MBTA's Urban Core. Government and infrastructure The United States Postal Service operates the Mattapan Post Office. Mattapan is mainly made up of triple and double decker houses. Each apartment of the triple/double deckers consist of three bedrooms, kitchen, one bathroom and living room. They were designed to house small unit families. Mattapan also has a few apartment style buildings. Some of these can be found on River Street. Most apartment complexes have a maximum of three bedrooms. These apartments were built recently and an example of this is Mattapan Heights, which was an abandoned rehabilitation facility that was then turned into a gated community with major townhouse apartment styles. Other types of housing are ‘School Housing by Lower Mills’, these complexes are new development in the community. Recreation Areas/ Green Space Ryan's Playground provides water sprinklers, swings and other activities for children to enjoy. Almont Park and Hunt's Park are also fun for kids as they provide a range of sporting facilities such as tennis courts, basketball courts and more. Shopping Districts- Mattapan Square is the shopping district hub, featuring multiple stores. A few of these stores are Rainbow clothing, Payless, A Nail Gallery, CVS pharmacy and other stores. A few are locally owned and others are franchises. These infrastructures are well grouped together as there is a very high density among the physical structures in Mattapan. The Affordable Housing plan in Mattapan