JS - The first map that you posted is the first effort 1974 MTA Commuter Rail Map...
This is an abstract design map only using a few primary colors to describe the routes listed:
Medium Blue for the Long Island Rail Road
Red for the New Haven Line(s)
Light Blue for the Harlem Line
Green for the Hudson Line (all three are part of Penn Central's Metropolitan Region at the time)
Purple for the Erie Lackawanna Railroad (the emphasis is for NYS station Suffern to Port Jervis
and Pearl River, Nanuet and Spring Valley on the Pascack Valley Line)
Orange for Staten Island Rapid Transit (with its then-recent B&O heritage)
Dark gray for PATH (the entire 13 station NY-NJ system is shown)
There were two subsequent MTA Commuter Rail maps issued in 1981 and 1984 which were vastly
improved from the 1974 version with better graphics and geographical accuracy...MACTRAXX
EXPRESS TRAIN TO NEW YORK PENN STATION-NO JAMAICA ON THIS TRAIN-PLEASE STAND CLEAR OF THE CLOSING TRAIN DOORS
