"checkpoint_id","checkpoint_name" "1010m","1010 Massachusetts Avenue @ Magazine Street" "400cp","400 West Cummings Park" "abase","Air Base" "abmta","Aberdeen & Mount Auburn" "acorn","Acorn Park Drive @ Route 2" "adgal","Adams & Gallivan Boulevard" "admhl","Admiral's Hill @ Commandants Way" "adrob","Adams & Robertson Streets" "airbs","Airport Station Busway" "alban","Albany Garage" "albny","Albany Garage" "alewf","Alewife Station" "aleyn","Adams @ Alleyne" "alfcl","Alewife" "almnt","Arlmont Village" "alrmp","Allston Trpk Ramps" "alsgr","Allston Street" "altol","Allston Toll Plaza" "alwpk","Alewife Brook Parkway" "amall","Assembly Mall & Row" "andrw","Andrew" "aport","Airport" "appma","Appleton Street & Massachusetts Avenue" "aqucl","Aquarium" "arbor","Arborway Bus Garage" "arfif","Arlington & Fifth" "arlct","Arlington Center" "arlht","Arlington Heights" "arlwi","Arlington/Winchester Line" "armnl","Arlington" "ashmt","Ashmont Terminal" "asmnl","Ashmont" "astao","Assembly" "atlst","Atlantic & State Streets" "aub