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- Route_availability abstract "Route Availability (RA) is the system by which the permanent way and supporting works (bridges, embankments, etc.) of the National Rail network of Great Britain are graded. All routes are allocated an RA number between 1 and 10.Rolling stock is also allocated an RA (again between 1 and 10) and the RA of a train is the highest RA of any of its elements. The RA is primarily related to the axle load of the vehicle, although axle spacing is also taken into consideration. In practice it is the locomotive which governs where trains may operate, although many high capacity 4 axle wagons have high RAs when fully loaded. (When considering the operation of trains the loading gauge must also be considered.)Route Availability as a system was first devised by the London and North Eastern Railway, and perpetuated by British Rail to ascertain which locomotives can work on which lines throughout the rail network in Great Britain. The system uses numbers from 1 to 10 and a locomotive must have a route availability (RA) lower than or equal to the RA of a line to be allowed to work on the line.Exemptions may be obtained to allow locomotives to operate on lines from which they may otherwise be banned. An exemption might be granted by placing a speed restriction over a weak bridge, for example.".
- Route_availability thumbnail 67028_at_Kings_Cross_1.jpg?width=300.
- Route_availability wikiPageExternalLink RA1.htm.
- Route_availability wikiPageExternalLink 2230.aspx.
- Route_availability wikiPageExternalLink 4996.aspx.
- Route_availability wikiPageExternalLink searchresults.aspx?Type=Adv&dStatus=2&dName=GERT8006.
- Route_availability wikiPageExternalLink TT0138.PDF.
- Route_availability wikiPageExternalLink Route+Availability.
- Route_availability wikiPageID "4865857".
- Route_availability wikiPageRevisionID "592957837".
- Route_availability hasPhotoCollection Route_availability.
- Route_availability subject Category:British_Rail_numbering_and_classification_systems.
- Route_availability subject Category:London_and_North_Eastern_Railway.
- Route_availability subject Category:Permanent_way.
- Route_availability subject Category:Rail_infrastructure_in_the_United_Kingdom.
- Route_availability type Abstraction100002137.
- Route_availability type Arrangement105726596.
- Route_availability type ClassificationSystem105727220.
- Route_availability type Cognition100023271.
- Route_availability type LocomotiveClassificationSystems.
- Route_availability type PsychologicalFeature100023100.
- Route_availability type Structure105726345.
- Route_availability comment "Route Availability (RA) is the system by which the permanent way and supporting works (bridges, embankments, etc.) of the National Rail network of Great Britain are graded. All routes are allocated an RA number between 1 and 10.Rolling stock is also allocated an RA (again between 1 and 10) and the RA of a train is the highest RA of any of its elements. The RA is primarily related to the axle load of the vehicle, although axle spacing is also taken into consideration.".
- Route_availability label "Route availability".
- Route_availability sameAs m.0crngw.
- Route_availability sameAs Q12859557.
- Route_availability sameAs Q12859557.
- Route_availability sameAs Route_availability.
- Route_availability wasDerivedFrom Route_availability?oldid=592957837.
- Route_availability depiction 67028_at_Kings_Cross_1.jpg.
- Route_availability isPrimaryTopicOf Route_availability.
