been a key traffic/running-biking trail conduit connecting the Southside Works and Pittsburgh Technology Center. Over 2,000 bridges span the landscape of Allegheny County. Public transportation statistics Pittsburgh is served by Pittsburgh Regional Transit, the 26th largest transit agency in the country prior to the pandemic. The average amount of time people spend commuting with public transit in Pittsburgh, for example to and from work, on a weekday is 73 min. 23% of public transit riders ride for more than 2 hours every day. The average amount of time people wait at a stop or station for public transit is 17 minutes, while 33% of riders wait for over 20 minutes on average every day. The average distance people usually ride in a single trip with public transit is , while 11% travel for over in a single direction. Expressways and highways Locals refer to the interstates fanning out from downtown Pittsburgh as the "parkways." Interstate 376 is both the "parkway east" connecting to Interstate 76 (Pennsylvania Turnpike) and the "parkway west" connecting to Interstate 79, the Pittsburgh International Airport, the Ohio end of the Turnpike and Interstate 80. The "parkway north" is Interstate 279 connecting to I-79. The "crosstown" is Interstate 579 allowing access to the heart of downtown, the Liberty Tunnels and the PPG Paints Arena. The 45-mile-long and 70-mile-long expressway sections of Pennsylvania Route 28 and U.S. Route 22 also carry traffic from downtown to the northeast and western suburbs, respectively. Interstate 70, 79 and 76 (the Turnpike) roughly form a triangular-shaped "beltway" with Interstate 68 and 80 within the media market's northern and southern limits. Turnpike spurs such as the Mon–Fayette Expressway, Pennsylvania Route 576 and Route 66 also help traffic flow. The non-expressway Pittsburgh/Allegheny County Belt System serves navigation in the region. Airports Pittsburgh International Airport provides commercial passenger service from over 15 airlines to the Pittsburgh metropolitan area. Arnold Palmer Regional Airport also provides limited commercial passenger service and is east of Pittsburgh. Other airports with scheduled commercial service include Morgantown Municipal Airport ( south of Pittsburgh), Youngstown–Warren Regional Airport ( northwest of Pittsburgh), Akron–Canton Airport ( northwest of Pittsburgh), Johnstown–Cambria County Airport ( east of Pittsburgh) and Erie International Airport ( north of Pittsburgh). Intercity passenger rail and bus Amtrak provides intercity rail service to Pittsburgh Union Station, via the Capitol Limited between Chicago and Washington, D.C., and the Pennsylvanian to New York City.