Chicago CTA "L" Purple Line Train

The Purple Line (or the Evanston Line) of the Chicago Transit Authority is a 3.9-mile (6.3 km) route on the northernmost section of the Chicago "L" rapid transit system. Normally, it extends south from Linden Avenue in Wilmette, passing through Evanston to Howard Street, on Chicago's north side. In September 2012, the average weekday boardings on the Purple Line was 45,036.