A road is a thoroughfare used primarily for movement of traffic. Roads differ from streets, whose primary use is local access. They also differ from stroads, which combine the features of streets and roads. Most modern roads are paved.
The words "road" and "street" are commonly considered to be interchangeable, but the distinction is important in urban design.
There are many types of roads, including parkways, avenues, controlled-access highways (freeways, motorways, and expressways), tollways, interstates, highways, and local roads.
The primary features of roads include lanes, sidewalks (pavement), roadways (carriageways), medians, shoulders, verges, bike paths (cycle paths), and shared-use paths. (Full article...)
A freeway is a type of road designed for safer high-speed operation of motor vehicles through the elimination of at-grade intersections. This is accomplished by preventing access to and from adjacent properties and eliminating all cross traffic through the use of grade separations and interchanges; railroad crossings are also removed. Such highways are usually divided with at least two lanes in each direction. Because traffic never crosses at-grade, there are generally no traffic lights or stop signs. Some countries have roads that function as freeways but use different names. These include autobahn, autovía, autoroute, autopista, autostrada, autosnelweg, motorway (in the UK and Ireland) and expressway (in India and Asia).
The following are images from various road-related articles on Wikipedia.
Image 1The Dutch Reach - Use far hand on handle when opening to avoid dooring cyclists or injuries to exiting drivers and passengers. (from Road safety) Image 2An example of composite pavement: hot-mix asphalt overlaid onto Portland cement concrete pavement (from Road surface) Image 3Modes of road transport in Dublin, 1929 (from History of road transport) Image 4Concrete roadway in San Jose, California (from Road surface) Image 5Speed limits in different areas; here unusually with only a "recommended" limit ( Richtgeschwindigkeit) of 130 km/h on the Autobahn in Germany (from Road safety) Image 6Utrecht has specially painted bicycle-only lanes. (from Road safety) Image 7John Metcalf, also known as Blind Jack of Knaresborough. Drawn by J R Smith in The Life of John Metcalf published 1801. (from History of road transport) Image 8Different layers of road including asphalt layer. The total thickness of a pavement can be measured using granular base equivalency. (from Road surface) Image 9Concrete pavers (from Road surface) Image 10The Great North Road near Highgate on the approach to London before turnpiking. The highway was deeply rutted and spread onto adjoining land. (from History of road transport) Image 11A patched road rut at a Portland Oregon bus stop. During the summer this part of the road will be hot and combined with a bus’s high ground pressure will compress and deform part of the road. Due to the lower elevation from the driveway, a large portion of the buses weight leans on one wheel causing damage to the road. Despite the repairs, you can see the patch is already damaged. This is all happens yearly. (from Road surface) Image 12Guard rail on road in Kaluga Oblast ( Russia) (from Road safety) Image 13Jan Brueghel (I) - Travellers on the Way, second half of 16th Century (from History of road transport) Image 14A concrete road in Ewing, New Jersey (from Road surface) Image 15Pavement ends and turns into gravel surface road. (from Road surface) Image 16Brick paving machine (from Road surface) Image 17Replacing the old road with cobblestones of cement in Bo'ao Road area, Haikou City, Hainan, China. (from Roadworks) Image 18Map of Roman roads in 125CE (from History of road transport) Image 19Polymer cement overlaying to change asphalt pavement to brick texture and color to create decorative crosswalk (from Road surface) Image 20The Autostrada A20 ( Italy) with large central median (from Road safety) Image 21Closeup of asphalt on a driveway (from Road surface) Image 22Old Roman road, leading from Jerusalem to Beit Gubrin, adjacent to regional highway 375 in Israel (from Road surface) Image 23According to Eurostat, there is almost a linear proportion between the total number of passenger-km driven by car and road fatalities. (from Road safety) Image 24Construction crew laying down asphalt over fiber-optic trench, in New York City (from Road surface) Image 25Annual traffic deaths sign over I-95 in Georgia, US, indicating more than three deaths per day (from Road safety) Image 26According to Eurostat and European Railway Agency, in European railway mode of transport, there is a fatality risk for passengers and occupants 28 times lower compared with car usage. Based on data by EU-27 member nations, 2008–2010. (from Road safety) Image 27Safe from traffic for cycling along a fully segregated Fietspad, properly designed cycling infrastructure in Amsterdam (from Road safety) Image 28Replacing the old road with concrete blocks in Bo'ao Road area, Haikou City, Hainan, China (from Road surface) Image 29Deteriorating asphalt (from Road surface) Image 30The schedule of maximum tolls allowed on the Woodstock to Rollright Turnpike Trust on the Great Road to Worcester in 1751 (from History of road transport) Image 31German roadworks sign. Similar signs are used in other European countries. (from Roadworks) Image 32Road work in Oulu, Finland (from Roadworks) Image 33Red surfacing for a bicycle lane in the Netherlands (from Road surface) Image 34A road being resurfaced using a road roller (from Road surface) Image 36Car fatalities per pax-km vs. car usage per pax-day; in Europe. It seems, at least in these European countries, that car fatalities per person-km have no strong correlation with massification of car usage. The average car usage in these countries is around 30km per person-day with varying number of fatalities ratios. These differences might be related with different cultural approaches to traffic codes, or more safety measures implemented on such countries. (from Road safety) Image 37Thomas Telford, the "Colossus of the Roads" in early 19th century Britain (from History of road transport) Image 38Sacrifices to the Modern Moloch, a 1923 cartoon published in St. Louis Star, criticizing the apparent acceptance by society of increasing automobile-related fatalities (from Road safety) Image 39* An orange diamond sign for upcoming roadworks. The worded legend shown here is banned by the 1968 Vienna Convention on Road Signs and Signals, but is allowed in the 2009 Manual on Uniform Traffic Control Devices. (from Roadworks) Image 40Cracked asphalt surface (from Road surface) Image 41Vehicles experiencing a breakdown or an emergency can stop in the emergency lane; these lanes may themselves present risks to traffic. (from Road safety) Image 42The Italian Autostrada dei Laghi ("Lakes Motorway" in the 1950s; now parts of the Autostrada A8 and the Autostrada A9), the first controlled-access highway ever built in the world (from History of road transport) Image 43Laying asphalt (from Road surface)
A viaduct complex in Puxi, Shanghai, PRC. Several stem roads (e.g. Yan'an Road) can also be seen. Credit: (Alex Needham)
... that labourers paving Saskatchewan Highway 641 in 1942 earned 35 cents an hour and a labourer with a tractor-drawn drag earned 50 cents an hour?
... that the 2008 Irish flash floods submerged one of the busiest roads in Northern Ireland under six metres of water?
- WikiProject Highways—principal WikiProject
- U.S. Roads—United States state highways and county roads
- U.S. Streets—United States city streets
- Australian Roads—Australian highways, principal roads, and main city streets
- Canada Roads—Canada provincial highways
- Canada Streets—Canada city streets
- WikiProject UK Roads—roads in the United Kingdom
- London transport—roads, etc.
- Paris Streets
- China Transportation—includes expressways, ring roads, Roads, national highways, etc
- Germany transportation
- Indian Roads
- Nepal transportation
- Pakistani Roads
- Scotland transport—includes road and bus transport in Scotland
Teen Murti Chowk (The "Three Statue" roundabout) in New Delhi, India, directly in front of Teen Murti Bhavan Credit: Rakesh Agrawal ( Rakeshagrawal)
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Here are some tasks you can do for WikiProject Highways:
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