Spur route

Source: Wikipedia, the free encyclopedia.
Not to be confused with a railroad
spur line
, which is a very short branch line.
Diagrams showing how a spur connects to a third city, and numbering scheme

A spur route is a short

beltway
is not considered a spur route as it typically reconnects with another or the same major road.

Canada

See also:
400-series highways (Ontario)

In the province of Ontario, most spur routes are designated as A or B, such as Highway 17A, or 7B. A stands for "Alternate Route", and usually links a highway to a town's central core or main attraction, while B stands for "Business Route" or "Bypass", but are used when a main highway is routed around a town and away from its former alignment. The designation of "C" was used twice (Highway 3C and 40C), and is assumed to mean "Connector". Both highways have long since been retired and are now

divided highway in Canada at the time (Cootes Drive in Hamilton
).

India

The

NH 7
).

Italy

Main articles: Roads in Italy and Autostrade of Italy
Raccordo autostradale RA3

The acronym RA stands for Raccordo autostradale (translated as "motorway connection"), a relatively short spur route that connects an

motorway) to a nearby city or tourist resort not directly served by the motorway. These spurs are owned and managed by Anas
. Some spurs are toll-free motorways (type-A), but most are type-B or type-C roads. All RA have separate carriageways with two lanes in each direction. Generally, they do not have an emergency lane.

Japan

The Aomori Expressway (E4A) spur splits from the Tōhoku Expressway (E4)

In Japan, spurs of its

Aomori, and the Sasson Expressway (E5A), linking the Dō-Ō Expressway (E5) to Otaru; however, some expressways that lack the "A" designation could also be considered spurs, such as the Kansai-Kūkō Expressway (E71) or the Ōita Airport Road (E97).[1]

New Zealand

In New Zealand, spurs on

SH 78, New Zealand's shortest state highway, which links SH 1 in Timaru
city center with the Port of Timaru.

Such spurs and spur roads leading from smaller urban thoroughfares to individual facilities are often referred to in New Zealand as "feeder roads".

Romania

All national roads, local roads and county roads have spur routes. A good example is DN1 and DN1A. DN1A goes from Bucharest to Brașov via Buftea, and have an intersection with DN1 at Ploiești. After Ploiești, DN1A goes to Vălenii de Munte, Cheia, and then DN1A goes directly onto the Brașov.

United Kingdom

In the UK, a spur route carries the same definition, but the numbering rules differ.

Same-number spurs

Short spurs from primary roads or motorways typically are not given a unique number, and three arms of the junction will apparently have the same number. For example, the

A14 has a same-number spur to the A1(M) motorway at Huntingdon in Cambridgeshire, the M23 motorway has one to Gatwick Airport in West Sussex and the M4 has one to Heathrow Airport. To distinguish the spur on road signs, the road it leads to is usually given - for example "Gatwick Airport (A23
)".

Unique-number spurs

Typically, slightly longer spurs, or those with intermediate

M18 motorway

A-road spurs do not follow a noticeable numbering system; they would be impossible to assign due to the quantity of A-road numbers in use.

United States

Interstate 384, a spur of Interstate 84 in Connecticut
Spur route of Washington State Route 100

In the US, many

Interstate 238, which connects Interstate 880 with Interstate 580 near Hayward, CA, is the only exception to this); e.g. a spur route of Interstate 90 could be 990; a spur route of Interstate 5
could be 105.

Spur Interstate routes have three-digit numbers with an odd first digit. A subsidiary route either passing through a city or bypassing it and then reconnecting to a major highway would receive an even first digit, and be considered a loop rather than a spur. For example, in the case of Interstate 5, Interstate 105 is a spur route ending at Los Angeles International Airport, whereas Interstate 405 begins and ends at Interstate 5, bypassing downtown Los Angeles.

Spurs are also found branching from

offramps of expressways
.

There are many numbering violations in the spur route numbering system, thus the general rules above do not always apply (e.g. U.S. Route 400—there is no parent "route 0").

See also

References

  1. ^ "Japan's Expressway Numbering System Outline". Retrieved 15 August 2019.
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