Question: What is Route 42?
Context: Route 95 is a city route located in Winnipeg, Manitoba.  It runs in the southwest part of the city from Route 105 east to Route 42.  It is named Roblin Boulevard west of Assiniboine Park, where it then becomes Corydon Avenue for the remainder of its route.  It meets Route 42 near the Confusion Corner intersection. U.S. Route 322 (US 322) is a U.S. highway running from Cleveland, Ohio east to Atlantic City, New Jersey.  The easternmost segment of the route in New Jersey runs 62.64 mi from the Commodore Barry Bridge over the Delaware River in Logan Township, Gloucester County, where it continues southeast to Atlantic Avenue and Pacific Avenue in Atlantic City, Atlantic County.  The portion of the route between the Commodore Barry Bridge and Route 42 is mostly a two-lane undivided road that is concurrently signed with County Route 536, passing through Mullica Hill and Glassboro.  From Williamstown, US 322 follows the Black Horse Pike, a four-lane road, southeast to Atlantic City.  In Hamilton Township, Atlantic County, US 322 forms a concurrency with U.S. Route 40, continuing with that route all the way to Atlantic City.  US 322 intersects several major roads including U.S. Route 130 and Interstate 295 in Logan Township, the New Jersey Turnpike in Woolwich Township, Route 55 in Harrison Township, Route 42 in Williamstown, Route 50 and U.S. Route 40 in Hamilton Township, the Garden State Parkway in Egg Harbor Township, and U.S. Route 9 in Pleasantville. State Route 29 (SR 29) is an east–west state highway in the west-central portion of the U.S. state of Ohio.  Its western terminus is at the Indiana state line near Celina, where State Road 67 continues west.  It continues east to St. Marys where it junctions with U.S. Route 33.  In that town, it also crosses State Route 66, State Route 116, and State Route 703, which was its former alignment before a divided highway was built.  After turning south it crosses State Route 219 in New Knoxville and then has an interchange with Interstate 75, continuing into Sidney where it meets State Route 47.  Still going southeast, it briefly joins State Route 235 before turning east and then south again to enter Urbana.  Here the route joins U.S. Route 36, and the concurrency intersects with U.S. Route 68 and State Route 54.  From there, State Route 29 leaves U.S. Route 36 and continues to Mutual, intersecting with State Route 161, and State Route 56 shortly after; later, in Mechanicsburg, the route intersects with State Route 4.  The route then intersects with State Route 38, U.S. Route 42, and Interstate 70 before reaching its eastern terminus at U.S. Route 40 on the western edge of West Jefferson. Riverton is an unincorporated community in Coos County, Oregon, United States, on Oregon Route 42S, about 12 mi up the Coquille River from Bandon.  Route 42S is the former alignment of U.S. Route 101. Route 168 is a 10.75 mi state highway in the southern part of New Jersey in the United States.  The route's southern terminus is an interchange with Route 42 and the Atlantic City Expressway in the Turnersville section of Washington Township, Gloucester County.  The northern terminus is an intersection with County Route 603 (CR 603) on the border of Camden and Woodlynne in Camden County.  At this point, the route continues toward downtown Camden as CR 605.  Route 168 follows the Black Horse Pike for most of its length, running through suburban areas in Gloucester Township, Runnemede, Bellmawr, and Mount Ephraim.  It intersects many major roads, including the Route 42 freeway in Gloucester Township, Route 41 in Runnemede, the New Jersey Turnpike and Interstate 295 (I-295) in Bellmawr, Route 76C (an access ramp to I-76 and I-676) in Haddon Township, and U.S. Route 130 (US 130) in Camden. Route 42 is a state highway in the U.S. state of New Jersey within the Camden area.  It runs 14.28 mi from an intersection with U.S. Route 322 and County Route 536 Spur in Monroe Township, Gloucester County to an intersection with Interstate 76 and Interstate 295 in Bellmawr, Camden County.  The route is a mix of freeway and divided four-lane arterial road.  The southern portion of Route 42 is a local arterial route and one of several highways comprising the Black Horse Pike, a road that runs from Camden to Atlantic City.  The northern portion is a six- to eight-lane freeway referred to locally as the North–South Freeway (or simply the 42 Freeway) that is directly connected to the Atlantic City Expressway.  Major intersections along the route include the Atlantic City Expressway and the southern terminus of Route 168 in Turnersville, another intersection with Route 168 in Blackwood, and Route 41 and Route 55 in Deptford Township. State Route 42 (SR 42) was a state highway in southern region of the U.S. state of California, running along Manchester Avenue, Manchester Boulevard and Firestone Boulevard in Los Angeles and the cities south of it.  After 1968, it ran from State Route 1 west of Inglewood (near Los Angeles International Airport) east to Interstate 5 in Norwalk.  Though signed as SR 42, it was officially Route 105 until replaced by the parallel Interstate 105 October 14, 1993.  From then until the last piece was turned over to local maintenance in 2000, it was an unrelinquished piece of Route 105, and continued to be signed as SR 42. Oregon Route 42 (OR 42) is an Oregon state highway which runs between U.S. Route 101 on the Oregon Coast, near Coos Bay, and Green, a few miles south of Roseburg on Interstate 5.  OR 42 traverses the Coos Bay–Roseburg Highway No. 35 of the Oregon state highway system.  At Coquille, there is a split in the route, as Oregon Route 42S heads southwest toward Bandon. U.S. Route 42 (US 42) is an east–west United States highway that runs southwest-northeast for 355 mi from Louisville, Kentucky to Cleveland, Ohio.  The route has several names including Pearl Road from Cleveland to Medina in Northeast Ohio, Reading Road in Cincinnati, Cincinnati and Lebanon Pike in southwestern Ohio and Brownsboro Road in Louisville.  Traveling east, the highway ends in downtown Cleveland, Ohio; and traveling west it ends in Louisville. The Clay Wade Bailey Bridge is a cantilever bridge carrying U.S. Route 42 and U.S. Route 127 across the Ohio River, connecting Cincinnati, Ohio and Covington, Kentucky.  This also marks the termination of U.S. Route 25.  The bridge's main span is 675 ft .  It is a 3-lane bridge; Two lanes are dedicated to travel each way and the middle lane is a reversible lane, meaning the direction of travel of the middle lane changes according to the time of day.
Answer: U.S. Route 42 (US 42) is an east–west United States highway that runs southwest-northeast for 355 mi from Louisville, Kentucky to Cleveland, Ohio.