Downtown Pittsburgh, colloquially referred to as the Golden Triangle, and officially the Central Business District, is the urban downtown center of Pittsburgh, Pennsylvania, United States. It is located at the confluence of the Allegheny River and the Monongahela River whose joining forms the Ohio River. The triangle is bounded by the two rivers.
Interstate 279 (I-279), locally referred to as Parkway North, is a north–south auxiliary Interstate Highway that lies entirely within Allegheny County, Pennsylvania. Its southern end is at I-376 at the Fort Pitt Bridge in Pittsburgh, and the north end is in Franklin Park at I-79. It primarily serves at the main access route between Pittsburgh and its northern suburbs.
Interstate 376 (I-376) is a major auxiliary route of the Interstate Highway System in the US state of Pennsylvania, located within the Allegheny Plateau. It runs from I-80 near Sharon south and east to a junction with the Pennsylvania Turnpike in Monroeville, after having crossed the Pennsylvania Turnpike at an interchange in Big Beaver. The route serves Pittsburgh and its surrounding areas and is the main access road to Pittsburgh International Airport (PIT). Portions of the route are known as the Beaver Valley Expressway, Southern Expressway, and Airport Parkway. Within Allegheny County, the route runs along the majority of the Penn-Lincoln Parkway, known locally as Parkway West and Parkway East. It is currently the ninth-longest auxiliary Interstate route in the system and second only to I-476 within Pennsylvania.
Interstate 579 (I-579) is a north–south Interstate Highway entirely within Pittsburgh, Pennsylvania. The highway is 2.73 miles (4.39 km) long. I-579 is also known as the Crosstown Boulevard since it crosses the backside of Downtown Pittsburgh.
U.S. Route 422 (US 422) is a 271-mile-long (436 km) spur route of US 22 split into two segments in the U.S. states of Ohio and Pennsylvania. The western segment of US 422 runs from downtown Cleveland, Ohio, east to Ebensburg, Pennsylvania. The eastern segment, located entirely within Pennsylvania, runs from Hershey east to King of Prussia, near Philadelphia. US 422 Business serves as a business route into each of four towns along the way.
Pennsylvania Route 28 is a major state highway, which runs for 98 miles (158 km) from Anderson Street in Pittsburgh to U.S. Route 219 (US 219) in Brockway in Pennsylvania in the United States.
U.S. Route 30 (US 30) is a U.S. Highway that runs east–west across the southern part of Pennsylvania, passing through Pittsburgh and Philadelphia on its way from the West Virginia state line east to the Benjamin Franklin Bridge over the Delaware River into New Jersey.
The William Penn Highway was an auto trail that ran from Pittsburgh, Pennsylvania in the west to New York City in the east. It served as the Pikes Peak Ocean to Ocean Highway west of Reading and as its branch to New York City.
A large metropolitan area that is surrounded by rivers and hills, Pittsburgh has an infrastructure system that has been built out over the years to include roads, tunnels, bridges, railroads, inclines, bike paths, and stairways; however, the hills and rivers still form many barriers to transportation within the city.
Pennsylvania Route 65 is a major 51-mile-long (82 km) state highway located in western Pennsylvania, United States. The route, traveling north–south from the Interstate 279/U.S. Route 19 Truck concurrency in Pittsburgh north to the PA 108/PA 168 concurrency in New Castle, connects downtown Pittsburgh to the northwestern portion of the Pittsburgh Metropolitan Area. PA 65 is similar in its purpose to PA 18 and PA 51, both of which run parallel to PA 65 at one point or another; however, the three routes pass through different cities for most of their respective alignments.
Pennsylvania Route 8 is a major 148.6-mile-long (239.1 km) state route in western Pennsylvania. Officially, PA 8 is named the William Flinn Highway.
Pennsylvania Route 51 is a major state highway that is located in Western Pennsylvania in the United States. It runs for 89 miles (143 km) from Uniontown to the Ohio state line near Darlington, where it connects with Ohio State Route 14.
U.S. Route 22 (US 22) is an east–west United States Numbered Highway that stretches from Cincinnati, Ohio, in the west, to Newark, New Jersey, in the east. In Pennsylvania, the route runs for 338.20 miles (544.28 km) between the West Virginia state line in Washington County, where it is a freeway through the western suburbs of Pittsburgh, and then runs east to Easton and the Pennsylvania–New Jersey state line in the Lehigh Valley region of eastern Pennsylvania.
Pennsylvania Route 885 is a 14.1 mi (22.69 km) long north–south state highway in the U.S. state of Pennsylvania. It runs from Pennsylvania Route 837 in Clairton north to Interstate 579 in Pittsburgh. The route is entirely within Allegheny County and serves as a connector between the city of Pittsburgh and its southern suburbs.
Pennsylvania Route 130 (PA 130) is a 49-mile-long (79 km) state highway located in Allegheny and Westmoreland counties in Pennsylvania. The western terminus is at PA 8 in Pittsburgh, and the eastern terminus is at PA 381 near Kregar.
Pennsylvania Route 136 is a 40-mile-long (64 km) state highway located in Washington, Allegheny, and Westmoreland counties in Pennsylvania. The western terminus is at US 40 and PA 18 in Washington. The eastern terminus is at US 30 in Greensburg.
Pennsylvania Route 356 is a 32.5-mile-long (52.3 km) state highway located in Westmoreland, Allegheny, Butler, and Armstrong counties in Pennsylvania. The southern terminus is at PA 66 near Oklahoma. The northern terminus is at U.S. Route 422 (US 422) near Butler.
U.S. Route 119 (US 119) travels through Connellsville, Greensburg, and Punxsutawney, and bypasses Uniontown and Indiana. There are numerous other boroughs and villages along its 133-mile (214 km) route in the Keystone State. The southern entrance of US 119 is at the West Virginia state line one-half-mile south of Point Marion. The northern terminus is at US 219 two miles (3 km) south of DuBois, Pennsylvania. US 119 is in the National Highway System from the West Virginia state line to Exit 0 of PA Turnpike 66, and from US 22 to US 219. From US 22 to US 219, the highway carries the name of the Buffalo-Pittsburgh Highway; from US 22 to PA 56, it is also known as the Patrick J. Stapleton Highway; near Uniontown, it bears the name George C. Marshall Parkway.
Ridge Pike is a major historic road in the U.S. state of Pennsylvania that opened in 1706 that originally connected Wissahickon Creek to Perkiomen Creek. Inside Philadelphia, it is called Ridge Avenue. Going westward, it traverses many eastern Pennsylvania neighborhoods in Montgomery County including Conshohocken and beyond, connecting with Germantown Pike near Collegeville and continuing to Pottstown. In Montgomery County, Ridge Pike is called Main Street in the Norristown area and again in Collegeville and Trappe, and is called High Street in the Pottstown area.
PA 380 (Centre Avenue) in East Liberty 
PA 8 (Fifth Avenue) in Larimer 
