*The Fight for Fairfax*

That's a new book by Russ Banham and the subtitle is A Struggle for a Great American County.  It is published by George Mason University Press.  Excerpt:

Among the incorporated towns was Falls Church, which claimed 1,100 citizens and an excellent connection to Washington, D.C., via the Washington, Arlington, and Falls Church Electric Railway.  Electric trolley lines also connected commuters from the towns of Fairfax, Herndon, Vienna, and Clifton to the District.

That was in 1907.  Does anyone know how fast these electric trolleys were?  This source suggests speeds were up to 20 mph.  Is it possible that a mass transit trip from Fairfax or Clifton to DC was quicker in 1907 than today?  With stops, how fast does a bus go at 8:30 a.m.?