Photo of the Month

Spur

From Roader's Digest: The SABRE Wiki

Jump to: navigation, search

A spur is a road (often a relatively short one) that turns off to one side from another (typically more important) road.

The M50 was originally often known (including in official documents) as the Ross Spur, because as seen on a map it is a spur from the M5 (though built first), and goes to Ross-on-Wye.

On SABRE the term spur is mostly used in the more specific sense of a spur which shares the road number of the road from which it turns off, giving that numbered road three (or more) endpoints.

A classic spur - the A449 north of Worcester splits into two - one segment leads to the city, the other to the M5.

The original classification of roads was designed more to identification for funding and maintenance than navigation purposes, and consequently spurs did not originally exist. However, as road numbers became to feature more prominently on signs from the 1930s onward, it was decided that making short links spurs of longer roads would aid in navigation.

Barring one or two earlier exceptions, spurs as we know them today were created in 1933 by David Therrel, who had become responsible for road numbering in the Southern Engineering Division. Given the task of revising road numbers after construction of the Basingstoke Bypass, he decided to not use the then current practice of allocating a 4 digit number to the former A30 between the eastern end of the bypass and Hackwood Road, but simply numbered it as a spur of the A339. After mentioning this when asked for his comments on improving road signing, the MOT decided to take a country wide look at rationalising the numbering of roads, which led to the 1935 Road numbering revision, creating many spurs in the process.

Today, probably the most common cause of a spur is of a minor road joining a now bypassed road, and splitting in two directions to cover all of the old route. For example, the A559 once turned off to the north from the main A556 near Northwich; when the A556 was re-routed along a new bypass to the south of the town, the bypassed length of A556 became A559, creating a three-arm junction at which all arms are A559.

Motorway spurs are listed here.

This page includes a scan of a non-free copyrighted map, and the copyright for it is most likely held by the company or person that produced the map. It is believed that the use of a limited number of web-resolution scans qualifies as fair use under United Kingdom copyright law, where this web page is hosted, as such display does not significantly impede the right of the copyright holder to sell the copyrighted material, is not being used to generate profit in this context, and presents information that cannot be exhibited otherwise.
If the copyright holder considers this is an infringement of their rights, please contact the Site Management Team to discuss further steps



Spur
Related Pictures
View gallery (1)
Spur.png
Road Basics
Physical layoutSingle track • Single carriageway • Dual carriageway • High Quality Dual Carriageway • Road Widths • Urban Streets
Legal typesAll-purpose Road • Special Road • Motorway • Trunk road • Principal road • Primary Route • Non Primary Route • Right of Way • Unadopted road
Road numbers1922 Road Lists • Classification • Classified Unnumbered Road • Unclassified • Defunct road • Euroroutes • MoT Maps • National Cycle Network • Numbering principles • Numbering anomalies • Recycled number • Unallocated numbers • Fictional Road Numbers • Junction numbers
Other termsAnderson report • A New Deal for Trunk Roads in England • Arterial Road • Automatic Bollard • Balancing Pond • Bus Lane • Bus stop • Bypass • Cannon • Cattle Grid • CD Lanes • Central Reservation • Chopsticks • Crash  Barriers • Cuttings and Embankments • Cycle Lane • Escape lane • Expressway • Fingerpost • Flare • Ford • Green Bridge • Green Wave • Hairpin bend • Hard shoulder • Highway Authority • Island • Layby • Managed Motorways • Motorway alphabet • Multiplex • No-Car Lane • Oxbow Road • Parapet • Park and Ride • Petrol station • Pre-Worboys • Primary Destinations • Ramp Metering • Retaining Wall • Roads by 10 • Roads For Prosperity • Roads for the Future • Road Investment Strategy • Road Studs • Roadside Art • Roadworks • SABRE • Safety Cameras • Secret motorway • Smart Motorway • Snow pole • Speed bump • Speed Limit • Spur • Street Lighting • Surface Dressing • Temporary terminus • Throughpass • Tidal Flow • Tiger tail • Toll booth • Traffic cone • Traffic Signals • Transport alphabet • Tunnel • Weaving • Wig-Wag Signals • Worboys report
AcronymsAADT • ANPR • ATM • DfT • GSJ • HA • HATO • HE • HQDC • LILO • MOVA • NCN • PTS • PFI • SCOOT • SON • SOX • SRN • TEN-T • TERN • TfL • TOTSO • TRO • TSM • TSRGD • UTC • VAS • VMS • VSL