Cute Young Blonde Girl Reveals In Purple Stockings

The MBTA Commuter Rail in Boston is designated with purple markings, and thus is sometimes called the Purple Line.
The LACMTA Purple Line is a subway that goes down part of Wilshire Boulevard in Los Angeles that it has been proposed be extended all the way down Wilshire Boulevard to the Pacific Ocean.
The Chicago Transit Authority's "L" line from Linden Street in Wilmette to Howard Street or the Loop (depending on time of day) is known as the Purple Line.
The Philippine Light Rail Transit system in Metro Manila designate Line 2 as the Purple Line. Line 2 runs from Santolan in Pasig-Marikina area up to Recto in Manila. Other light transit systems in Metro were designated as the Blue Line (MRT-3, running along EDSA) and Yellow Line (running from Baclaran to Roosevelt Ave.).