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A median strip, central reservation, roadway median, or traffic median is the reserved area that separates opposing lanes of traffic on divided roadways such as divided highways, dual carriageways, freeways, and motorways. The term also applies to divided roadways other than highways, including some major streets in urban or suburban areas.
A divided highway (U.S. Route 52) in the state of Indiana Savery Avenue in Carver, Massachusetts was the first divided highway in the U.S. [12] In the United States, this type of road may be called a divided highway, boulevard, parkway, expressway, freeway, or interstate, and has a grassy median or Jersey barrier separating the traffic directions.
The median-side travel lane of the old two-way corridor becomes a passing lane. Other techniques involve building a new carriageway on the side of a divided highway that has a lot of private access on one side and sometimes has long driveways on the other side since an easement for widening comes into place, especially in rural areas.
A dual carriageway road (North American English: divided highway) has two roadways separated by a central reservation (North American English: median). A local-express lane system (also called collector-express or collector-distributor) has more than two roadways, typically two sets of 'local lanes' or 'collector lanes' and also two sets of ...
A highway that splits off the mainline and reconnects some distance later. Ambulance A medically equipped vehicle which transports patients to treatment facilities, such as hospitals. Annual average daily traffic (AADT) A measure of total volume of vehicle traffic on a segment of road for a year divided by 365 days to produce an average.
The Veterans Memorial Parkway in London, Ontario is a modern at-grade limited-access road with intersections. A limited-access road, known by various terms worldwide, including limited-access highway, dual-carriageway, expressway, and partial controlled-access highway, is a highway or arterial road for high-speed traffic which has many or most characteristics of a controlled-access highway ...
The Plimoth Patuxet Highway in Massachusetts is a two-lane divided freeway. A two-lane expressway or two-lane freeway is an expressway or freeway with only one lane in each direction, and usually no median barrier. It may be built that way because of constraints, or may be intended for expansion once traffic volumes rise.
It is akin to the autopista, the other major highway class, but has fewer features and is never a toll road. Some distinguishing features of an autovía are that it must be divided by a median, it must have restricted access, and it cannot be crossed by other roads.