The Peter Witt streetcar was introduced by Cleveland Railway commissioner Peter Witt (1869-1948) who led the transit agency from 1911-1915 and designed a model of streetcar known by his name that was used in many North American cities, most notably in Toronto and Cleveland.
This design was distinguished from other streetcars of the era by its use of the center door as an exit only, with a conductor stationed inside just in front of the door. Passengers could board through the front doors without waiting or paying; they could pay the conductor immediately and sit in the rear of the car (in the nicer seats), or wait in front and pay just before they exit. This had the effect of reducing the car's dwell time at stops, improving schedule times and increasing capacity. Many vehicles were later converted to pay-as-you-enter operation in order to reduce the number of staff needed, but they continued to be known as Peter Witt cars.
Mr. Witt completed the first prototype in 1914 and filed his patent for the car design in 1915. G.C. Kuhlman Car Company then delivered 130 cars of this design to Cleveland in 1915 and 1916. From this point the design was licensed to a number of cities that needed large capacity trolleys. Toronto Transportation Commission ordered 575 cars from 1921 to 1923 and operated them until 1965. Philadelphia Rapid Transit ordered 525 cars from 1923 to 1926, while also converting most of their 1,500 Nearside streetcar fleet to center exit models. Production continued until the introduction of the PCC streetcar in the mid-1930s.
Peter Witt cars were also built in Italy and used in several Italian cities, including Milan, where 200 out of 502 originally built class 1500 cars (introduced in 1928) are still in use up to this day. Additionally eleven ex-Milan cars can be seen today on the streets of San Francisco, where they operate on the F Market & Wharves streetcar line. Also in Italy, 30 heavily rebuilt Petter Witt cars are still in use in Naples.