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Bundesautobahn 9 near by Garching bei Muenchen, Germany. At the top of the hierarchy in terms of traffic flow and speed are controlled-access highways; their defining characteristic is the control of access to and from the road, meaning that the road cannot be directly accessed from properties or other roads, but only from specific connector roads.
At the lowest level of the hierarchy, cul-de-sac streets, [1] by definition non-connecting, link with the next order street, a primary or secondary "collector"—either a ring road that surrounds a neighbourhood, or a curvilinear "front-to-back" path—which in turn links with the arterial. Arterials then link with the intercity highways at ...
The Federal-aid secondary highway system (FAS system) consists of the principal secondary and feeder routes including farm-to-market roads, rural mail and public school bus routes, local rural roads, county and township roads, roads of the county, road class, and their urban extensions. These roads are chosen by the state highway departments ...
Roads with two or more carriageways which are designed to higher standards with controlled access are generally classed as motorways, freeways, etc., rather than dual carriageways. A road without a central reservation is known as a single carriageway regardless of how many lanes there are.
A secondary type of road usually found in rural areas. Barrier toll system or open toll system A method of collecting tolls on highways using toll barriers at regularly spaced intervals on the toll road's mainline, usually charging a flat rate at each barrier. Beltway. See ring road. Bicycle, bike, or cycle
The secondary roads system in Virginia was formed in 1932, when the financial pressures of the Great Depression prompted the state to take over most county roads through the Byrd Road Act. Virginia's independent cities were not included, but all the counties in Virginia were given the option of turning this responsibility over to the state.
Trunk secondary roads have a single number in a circular highway shield. Spur secondary roads are given "fractional" designations with two numbers displayed vertically: the top number specifies the trunk road or highway they diverge from, and the bottom is a serial number reflecting the order in which the number was assigned.
South Carolina utilizes a numbering system to keep track of all non-interstate and primary highways that are maintained by SCDOT. First appearing in 1947 [citation needed] (when a huge amount of highways were cancelled or truncated), the "state highway secondary system" [4] carries the number of the county followed by a unique number for the particular road.