Pittsburgh Regional Transit of Pittsburg, Pennsylvania
Pittsburgh Regional Transit of Pittsburgh, Pennsylvania

Headquarters Location: 623 Smithfield Street, Pittsburgh, PA 15222

Pittsburgh Regional Transit or PRT is the primary provider of bus service in Allegheny County, Pennsylvania. Most PRT routes operate locally around Pittsburgh, but some routes operate outside Pittsburgh. PRT also operates a light rail service within Pittsburgh.

Pittsburgh Regional Transit was renamed from Port Authority of Allegheny County as of June 2nd, 2022. Although buses still wear “Port Authority” branding, all future bus orders will sport new “PRT” liveries.

Routes

Pittsburgh Regional Transit’s route structure is simple. Bus routes are numbered based on whether they’re local routes or if they primarily operate on a busway. Light Rail Routes are color names. Specially branded “Flyer” routes operate limited stop service to many key points while operating via one of the three busways.

  • Routes simply numbered 1-99 are local routes that operate local service with the following exceptions
    • Route 28X is a Flyer route that operate via the West Busway to the Airport.
    • Routes 19L, 51L, and 52L are limited stop variants of limited stop routes with the same numbers (19, 51 and 52)
  • P routes operate via Martin Luther King East Busway.
    • P1 East Busway ALL STOPS
      • Only line to serve all stops along the East Busway
    • P2 East Busway Short
      • Operates on East Busway between Penn Station and Wilkinsburg Station
      • Exits at at Hay Street
    • P3 East Busway Oakland
      • Operates on East Busway between Negley Station and Swissvale Station
      • Enters via Neville Street
    • P7 McKeesport Flyer
      • Operates on East Busway between Penn Station and Wilkinsburg Station
      • Drop-off only along East Busway when headed downtown and Pick-up only along East Busway when headed to McKeesport
      • Rush Hour Service only
      • Exits at Hay Street
    • P10 Allegheny Valley Flyer
      • Operates on East Busway between Downtown Pittsburgh and East Liberty Station
      • Drop-off only along East Busway when headed downtown and Pick-up only along East Busway when headed to Harrison
      • Peak Direction service only
    • P12 Holiday Park Flyer
      • Operates on East Busway between Penn Station and Wilkinsburg Station
      • Exits at Hay Street
      • Peak Hours only
    • P67 Monroeville Flyer
    • P68 Braddock Hills Flyer
    • P69Trafford Flyer
      • Operates on East Busway between Penn Station and Wilkinsburg Station
      • Exits at Hay Street
      • Peak Directions only
    • P71 Swissvale Flyer
    • P76 Lincoln Highway Flyer
      • Operates on East Busway between Penn Station and Wilkinsburg Station
      • Exits at Hay Street
      • Peak Hours only
    • P78Oakmont Flyer
      • Operates on East Busway between Penn Station and Wilkinsburg Station
      • Exits at Hay Street
  • G routes operate via the West Busway
    • 28X Airport Flyer
      • Is the only non-G route to operate via West Busway
    • G2 West Busway (All Stops)
    • G3 Moon Flyer
    • G31 Bridgeville Flyer
  • Y routes operated via the South Busway, for example, Y1
  • O routes operate via the I-279 (Parkway North) HOV lanes, for example, O1

Pittsburgh Regional Transit also operates three light rail Lines under the “T” branding and two inclines. The Light rail lines are listed under the light rail section

Bus Fleet Roster

Pittsburgh Regional Transit’s fleet is mostly made up of Gillig Low Floor diesel buses with Voith Transmissions, with articulated buses being a mix of New Flyer Restyles and New Flyer Xcelsiors. PRT also has a small fleet of electric buses in service as well.

YearMake/ModelImageEngine/ TransmissionNumbersColorsNotes
2011-2013New Flyer
D60LFR
Pittsburgh Regional Transit 3339 on route 28X
28x Airport Flyer
New Flyer D60LFR
Ingram Station (West Busway), Pittsburgh, PA Cummins ISL/
Voith D864.5
3200-3260 (2011)
3301-3340 (2013)
Red
Blue
Gold
Retiring
2011Gillig
Low Floor ’40
Pittsburgh Regional Transit Gillig Low Floor 5806 by Devin Mooney

Pittsburgh Regional Transit Gillig Low Floor 5807 by Devin Mooney
Cummins ISL/
Voith D864.5
5806-5808Red
Blue
Gold
Reserved for special events
2014-2015Gillig
Low Floor ’40
Pittsburgh Regional Transit 6058
East Liberty Garage
Gillig Low Floor
East Liberty Station, Pittsburgh, PA

Pittsburgh Regional Transit Gillig Low Floor 6006 by Devin Mooney
Cummins ISL/
Voith D864.5
6000-6060 (2014)
6101-6160 (2015)
Red
Blue
6015…
2015Gillig
Low Floor ’35
Pittsburgh Regional Transit 1714 on route 43
43 to Bailey via Allentown
Gillig Low Floor
Station Square Station (South Busway) Cummins ISL/
Voith D864.5
1701-1730Red
Blue
2016Gillig
Low Floor ’40
PRT Gillig Low Floor by Devin Mooney Cummins ISL/
Voith D864.5
6201-6275Red6263 wears PRT Livery
2017New Flyer
XD60
Pittsburgh Regional Transit New Flyer Xcelsior 3402 Cummins L9/
Voith D864.6
3401-3425Red
2017-2020Gillig
Low Floor ’40
Pittsburgh Regional Transit 6735 On Route 51
Route 51 Carrick
Gillig Low Floor
Station Square, Pittsburgh, PA

Pittsburg Regional Transit Gillig Low Floor 6430
Cummins L9/
Voith D864.6
6301-6370 (2017)
6401-6469 (2018)
6501-6559 (2019)
6601-6654 (2020)
Red
2020-2021New Flyer
XE40
Pittsburgh Regional Transit New Flyer Xcelsior 7106 Siemens Electric
Propulsion System
7001-7002 (2020)
7101-7106 (2021)
Electric BlueElectric buses
2021Gillig
Low Floor ’40
Pittsburgh Regional Transit 6735 On Route 51
Route 51 Carrick
Gillig Low Floor
Station Square, Pittsburgh, PACummins L9/
Allison B400R6
6701-6740 (2021)Red
2024New Flyer
XD60
Cummins L9/
Allison B500R6
3501-3554PRTXFeatures full covered roof
2024New Flyer
XE60
Siemens Electric
Propulsion System
8001-8015PRTXElectric buses
2025New Flyer
XD40
Cummins L9/
Allison B500R6
6801-6830PRT Green
YearMake/ModelImageEngine/TransmissionNumbersColorsNotes
Pittsburgh Regional Transit Fleet as of May 26th 2025

Pittsburgh Regional Transit CAF LRV 4305 by Devin Mooney
Pittsburgh Regional Transit CAF LRV 4305 by Devin Mooney

Light Rail Fleet Roster

Pittsburgh Regional Transit operates a fleet of 83 light rail vehicles across its three lines, which all originate from Allegheny Station:

  • Blue Line – Allegheny to South Hills Village via Beechview
  • Red Line – Allegheny to Castle Shannon via Overbrook
  • Silver Line – Allegheny to Library via Overbrook

Due to a long term rebuilding project of PRT’s light rail system, Red Line andBlue Line trains operate from Allegheny to South Hills Junction via the old “Brown Line” trackage, while a new temporary fourth line, called the “Subway Connector” which operates from Allegheny Station to Station Square.

YearMake/ModelImageNumbersLinesNotes
1985-1987Siemens
SD-400
Pittsburg Regional Transit Siemens LRV 42224201-4255Blue Line
Red Line
Silver Line
2003-2004CAF
LRV
4301-4328Blue Line
Red Line
Silver Line
Pittsburgh Regional Transit Fleet as of June 13th, 2022

Sources: