▁T rem ont ▁Street ▁Sub way ▁through ▁service ▁from ▁Le ch m ere ▁to ▁W ob urn ▁via ▁the ▁Low ell ▁Line . ▁ ▁By ▁ 1 9 4 0 , ▁just ▁four ▁street car ▁routes ▁remained ▁in ▁Som er ville : ▁the ▁ 8 7 ▁Clar end on ▁Hill ▁– ▁Le ch m ere ▁via ▁Som er ville ▁Avenue ▁and ▁ 8 8 ▁Clar end on ▁Hill ▁– ▁Le ch m ere ▁via ▁High land ▁Avenue ▁pair , ▁the ▁ 8 9 ▁Clar end on ▁Hill ▁– ▁S ull ivan ▁Square ▁Station ▁route , ▁and ▁the ▁ 1 0 1 ▁S alem ▁Street ▁– ▁S ull ivan ▁Square ▁Station ▁route ▁which ▁connected ▁with ▁the ▁Eastern ▁Massachusetts ▁Street ▁Railway ' s ▁F ells way ▁Line ▁to ▁Stone ham . ▁The ▁ 8 7 ▁and ▁ 8 8 ▁were ▁converted ▁to ▁track less ▁t rolle ys ▁in ▁ 1 9 4 1 , ▁while ▁the ▁ 8 9 ▁and ▁ 1 0 1 ▁saw ▁heavy ▁w art ime ▁use ▁and ▁last ed ▁until ▁ 1 9 4 6 ▁and ▁ 1 9 4 7 , ▁respectively . ▁ ▁In ▁the ▁ 1 9 4 5 – 4 7 ▁C ool idge ▁Commission ▁reports , ▁many ▁of ▁the ▁same ▁trans it ▁projects ▁were ▁again ▁proposed ; ▁but ▁this ▁time ▁the ▁W ob urn ▁extension ▁was ▁given ▁a ▁high ▁rating . ▁The ▁extension ▁would ▁allow ▁the ▁Boston ▁& ▁Maine ▁Rail road ▁to ▁abandon ▁their ▁local ▁stops ▁along ▁the ▁cor rid or ▁( all ▁stops ▁from ▁