A road is a thoroughfare for the conveyance of traffic that mostly has an improved surface for use by vehicles and pedestrians. Unlike streets, whose primary function is to serve as public spaces, the main function of roads is transportation.
Bundesautobahn 73 and its slip road leading to Erlangen
The Porta Rosa, a Greek street dating from the 3rd to 4th century BC in Velia, with a paved surface and gutters
A paved Roman road in Pompeii
Part of the AVUS road in Berlin, the first automobile-only road, which served as an inspiration for Piero Puricelli's 1924 autostrada between Milan and the northern Italian lakes, the first motorway in the world.
Traffic comprises pedestrians, vehicles, ridden or herded animals, trains, and other conveyances that use public ways (roads/sidewalks) for travel and transportation.
Crossing from Fort Lee, Bergen County, New Jersey, into Manhattan in heavy automobile traffic on the George Washington Bridge, the world's busiest motor vehicle bridge, transporting approximately 300,000 cars and trucks daily across the Hudson River.
Traffic in Brazil
Congestion in St. Louis, Missouri, early 20th century
Traffic controller on Michigan Avenue in Chicago, Illinois
