Pre-T trolleys

But a 3 PCC train is still shorter and less capacity than two LRVs. You can't run a three car on the green line until all the station upgrades are done because the platforms are currently shortened to facilitate construction. Still, what we have now is better than the old PCCs. If you want a nostalgia trip, go to Mattapan, but you can't seriously argue that a PCC offered more capacity.

That map is a nice one, but it leaves a lot of historical lines out. My grandmother took the streetcar to Nantasket.

That second website you posted, oddly enough maintained by the NYC subways system, was the one I had been looking for. It has pictures of every subway line in Boston and some great shots of "old Boston," including the El. The trolley lines at one time pretty much extended every where a bus line currently goes. They ran through Uphams Corner all the way up Columbia Ave in Dorchester to Franklin Park and all up and down Blue Hill Ave as well. They also ran out washington Street to Roslindale (hence the abandoned MBTA substation at the corner of Cummins Highway - to be refurbished) as well as all the way out to Arlington (hence the identical MBTA substation in Arlington already refurbished). The MBTA's desire to replace trolleys with busses continues, as there was until recently (hope I don't jynx it) talk of putting in a bus line instead of extending the green line to Medford and, of course, there is the Silver Lie and the Arborway busline that still runs on top of the tracks down Centre Street in JP.