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 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.
A one-way pair, one-way couple, or couplet refers to that portion of a bi-directional traffic facility – such as a road, bus, streetcar, or light rail line – where its opposing flows exist as two independent and roughly parallel facilities.
A reversible lane is a managed lane in which traffic may travel in either direction, depending on certain conditions. Typically, it is meant to improve traffic flow during rush hours, by having overhead traffic lights and lighted street signs notifying drivers which lanes are open or closed to driving or turning.
The Allegheny County Belt System color codes various county roads to form a unique system of routes in Allegheny County, Pennsylvania, and around the city of Pittsburgh.
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.
As the Lincoln Highway was one of the earliest transcontinental highways for automobiles across the United States and was widely publicized since its inception, the route of the Lincoln Highway was determined not only by civil engineering considerations but also by politics. In many regions, there was general consensus among those who had power or interest in influencing the route. But in a few regions the choice of route was a contentious topic during the 1920s. The highway took the following route:
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 Liberty Bridge, which was completed in 1928, connects downtown Pittsburgh, Pennsylvania, to the Liberty Tunnels and the South Hills neighborhoods beyond. It crosses the Monongahela River and intersects Interstate 579 at its northern terminus.
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.
Interstate 70 (I-70) is an Interstate Highway that is located in the Commonwealth of Pennsylvania in the United States. It runs east to west across the southwest part of Pennsylvania and serves the southern fringe of the Pittsburgh metropolitan area.
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 380, also known as J.F. Bonetto Memorial Highway and within the city of Pittsburgh Bigelow Boulevard, Baum Boulevard and Frankstown Road, is a 32.80-mile-long (52.8 km) state highway in western portions of the U.S. state of Pennsylvania. The western terminus of the route is at Interstate 579 in downtown Pittsburgh near PPG Paints Arena. The eastern terminus is at Pennsylvania Route 286 in Bell Township, near the hamlet of Wakena.
Pennsylvania Route 885 is a 14.1-mile-long (22.69 km) 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 837 is a state route located in western Pennsylvania. The southern terminus of the route is at Pennsylvania Route 88 in the Carroll Township hamlet of Wickerham Manor. The northern terminus is at U.S. Route 19 and PA 51 near downtown Pittsburgh at the junction of the Ohio, Allegheny and Monongahela rivers. The highway parallels the Monongahela River for all of its route with the exceptions of its extreme north and south ends. Popular amusement park Kennywood is located along this route.
U.S. Route 19 Truck is a truck route of US 19 located in Western Pennsylvania in Greater Pittsburgh that has a length of 19.4 miles (31.2 km). It is a loop off US 19; the southern terminus located in Mt. Lebanon and the northern terminus in McCandless, connecting to US 19 at both ends. The route is notable for a large, unorthodox interchange with the Penn–Lincoln Parkway just west of the Fort Pitt Tunnel, where the route joins the parkway and forms several wrong-way concurrencies, including one with its own opposing directions. North of Pittsburgh, US 19 Truck is called McKnight Road and south of Pittsburgh it carries West Liberty Avenue and Washington Road.
The Charles Anderson Memorial Bridge is a steel deck truss bridge located in Pittsburgh, Pennsylvania, United States. The bridge carries the four-lane roadway of Boulevard of the Allies across a ravine known as Junction Hollow, connecting the neighborhoods of Central Oakland and South Oakland with Schenley Park. The bridge also spans the Junction Hollow Trail and P&W Subdivision railroad tracks which run along the bottom of the valley.
PA 885 from 
I-579 to Bates Street
I-376 / US 22 / US 30 (Penn-Lincoln Parkway) / Grant Street / 2nd Avenue / Court Place in Pittsburgh 
