Auxiliary route

Auxiliary route

In road transportation, an auxiliary route is either a spur or a loop of a parent route. The auxiliary route, sometimes called a "child route", is typically distinguished from its parent with either a specific numbering scheme (e.g. in the United States Interstate Highway System, Interstate 240 is an auxiliary route of Interstate 40) or, in the U.S., the use of auxiliary signs like "Business", "City", "Alternate", "Spur", and "By-pass".

Often the term "spur" is used as a substitute for "auxiliary", but true spurs have a unique characteristic in that they do not normally reconnect to the parent highway once separated.

In the case of U.S. state routes, auxiliaries are generally restricted to primary state routes, not secondary state routes, though Missouri has three supplemental routes which have short spur routes.

ee also

* List of auxiliary Interstate Highways
* Auxiliary U.S. Route

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • auxiliary route — A carrier route that is regularly scheduled for completion in less than 8 hours and is not up for bid by full time carriers …   Glossary of postal terms

  • Auxiliary — may refer to:*A backup system *An auxiliary input. See Scart and Jack (connector). *An auxiliary verb *International auxiliary language *Auxiliary police *Troops supporting the main force of an army see auxiliaries **Armed Forces auxiliary… …   Wikipedia

  • Route number — A road number is often assigned to a stretch of public roadway. The number chosen is often dependent on the type of road, with numbers differentiating between interstates, motorways, arterial thoroughfares, two lane roads, and so forth. Contents… …   Wikipedia

  • Auxiliary routes of Arkansas Highway 18 — Main article: Arkansas Highway 18 Three auxiliary routes of Arkansas Highway 18 exist in northeast Arkansas.[1] Contents 1 Newport spur 2 Jonesboro spur 3 Manila business route …   Wikipedia

  • Auxiliary power unit — An auxiliary power unit (APU) is a device on a vehicle whose purpose is to provide energy for functions other than propulsion. Different types of APU are found on aircraft, as well as on some large ground vehicles.AircraftFunctions of APU The… …   Wikipedia

  • List of auxiliary Interstate Highways — The auxiliary Interstate Highways (also called 3 digit Interstate Highways) is an additional network of freeways of the Interstate Highway System. Similar to the primary Interstate Highways, they also meet Interstate Standards, receive the same… …   Wikipedia

  • Maryland Route 7 — MD 7 redirects here. For the congressional district, see Maryland s 7th congressional district. Maryland Route 7 …   Wikipedia

  • Maryland Route 648 — Route information …   Wikipedia

  • Maryland Route 713 — Route information …   Wikipedia

  • Maryland Route 851 — Route information Maintained by MDSHA Length: 1.46 mi …   Wikipedia