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Port Authority 4000 Series PCC

Port Authority 4000 Series PCC
Pittsburgh PCC 4001.jpg
PCC 4001 as a static display in front of the South Hills Village depot, 2004.
Manufacturer St. Louis Car Company, rebuilt by Port Authority's South Hills Junction car shops
Constructed 1949
Refurbishment 1981-1988
Number built 12
Number in service 12
Fleet numbers 4001-4012
Capacity 46 (103 including standees) → 'crush'-load: 134 max.
Operator(s) Port Authority of Allegheny County
Line(s) served Pittsburgh Light Rail
Specifications
Car length 46.5 feet (14.2 m)
Width 8 feet (2.44 m)
Height 10 feet (3.05 m)
Doors 2
Weight 37,400 lb (16,964 kg) / 53,000 lb (24,040 kg)
(empty/full)
Traction system 4 × 48 hp or 36 kW continuous, 4 × 55 hp or 41 kW one hour (rating)
Acceleration max. 4.3 MPHPS = 1.9 m/s²
Deceleration max. 9.0 MPHPS = 4.0 m/s² -- service 3.6 MPHPS = 1.6 m/s²
Electric system(s) 600 VDC Overhead
Current collection method Pantograph
Track gauge 5 ft 2 12 in (1,588 mm) Pennsylvania Trolley Gauge

The 4000 Series PCC was a streetcar used by the Port Authority of Allegheny County. The PCC streetcar was designed by the Presidents' Conference Committee, a group of transit operators in the United States and Canada. The 4000's were a series of cars completely rebuilt from cars built in 1949 by the St. Louis Car Company for Port Authority's predecessor, Pittsburgh Railways.

In the early 1980s, the Pittsburgh Port Authority began its "Stage I" project to completely rebuild portions of its streetcar system into their new T system. This project consisted of a reconstructed Beechview-South Hills Village line supplemented by an order of 55 Siemens SD-400 light rail cars. However, this project would only reconstruct roughly fifty-five percent of the existing system, with the Overbrook-Library and Drake lines earmarked in the "Stage II" plan, to be rebuilt at a later date as funding became available. Until such time, the "Stage II" lines would not be able to accommodate the new, heavier, and wider rail cars due to their age and condition, so the Authority needed to continue to operate their aging PCC fleet.

The solution was a fleet of completely rebuilt PCC's that could complement the new LRVs by operating on portions of the system that could not yet accommodate the larger, heavier cars, as well as having new components that extended their service lives until such time that their lines could be rebuilt and replacements bought.

Originally, the Authority planned to overhaul forty-five of their 1700 series PCC's. However, budgetary constraints and technical difficulties resulted in only sixteen cars being rebuilt. Of the sixteen, only twelve cars received the complete overhaul, while four were only partially rebuilt. These four, affectionately referred to as "Super 17's" by many, received the same mechanical and electrical improvements, seats, body work, and paint scheme as the remaining twelve, but retained several of their 1949 attributes, including original interior and exterior lighting, all-steel body panels, and operator's controls, as well as retaining their original numbers. The 4000 series cars that received the complete overhaul were essentially completely new vehicles built within the old car's body. All new propulsion and braking systems had been installed, as well as new interiors with improved lighting. Some cars were given two pantographs, where the front one was outfitted with a de-icing apparatus intended to help remove sleet from the overhead wires. As planned, nearly all cars would be air-conditioned, but with the aforementioned budget issues, only one car, number 4006, was fitted with an air-conditioning system.


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