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A new section of road being built near Hindhead, UK, to replace a four-mile section of the A3 road, and which includes the new Hindhead Tunnel, is expected by the government to deliver environmental benefits to the immediate area including the removal of daily congestion, the elimination of air pollution in Hindhead caused by the congestion ...
In the field of road transport, an interchange (American English) or a grade-separated junction (British English) is a road junction that uses grade separations to allow for the movement of traffic between two or more roadways or highways, using a system of interconnecting roadways to permit traffic on at least one of the routes to pass through ...
This causes illness and deaths from air pollution, including nitrous oxides and particulates, and is a significant cause of climate change through emission of carbon dioxide. [3] [4] Within the transport sector, road transport is the largest contributor to climate change. [3]
A directional interchange is a grade separated junction between two roads where all turns that require crossing over or under the opposite road's lanes of travel to complete the turn utilize ramps that make a direct or semi-direct connection. The difference between direct and semi-direct connections is how much the motorist deviates from the ...
After heavy rainfall events that cause stormwater overflows, contaminated water can impact waterways in which people recreate or fish, causing the beaches or water-based activities to be closed. This is because the runoff has likely caused a spike in harmful bacterial growth or inorganic chemical pollution in the water.
Diamond interchange An interchange between a freeway and a minor road where the off-ramp diverges only slightly from the freeway and runs directly across the minor road at an at-grade intersection, becoming an on-ramp that returns to the freeway in similar fashion. Directional interchange. See stack interchange. Distributor road. See collector road
The number of directions one can travel toward or away from the interchange on all of the roads involved is the number of "legs". When two roads meet, there are four paths to and from the interchange, and so the interchange has four legs, but if one of the roads terminates at the interchange, it will only have three legs. Interchanges with more ...
In road and rail transport, a washout is the result of a natural disaster where the roadbed is eroded away by flowing water, usually as the result of a flood. [1] When a washout destroys a railroad's right-of-way , the track is sometimes left suspended in midair across the newly formed gap, or it dips down into a ditch.