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The yellow square symbol on this sign on the A614 road indicates a diversion route for the M18 motorway. In the United Kingdom, emergency diversion routes, or formally off-network tactical diversion routes are permanently signed detour routes: planned road traffic routes that bypass the main trunk road network.
A non-primary road sign near Bristol shows Guildford Rules patches.Road signs in the United Kingdom and in its associated Crown dependencies and overseas territories conform broadly to European design norms, with a number of exceptions: direction signs omit European route numbers, and road signs generally use the imperial system of units (miles and yards), unlike the rest of Europe (kilometres ...
The line is an important diversionary route at weekends, used in conjunction with the Crewe–Manchester line to divert away from a large section of the West Coast Main Line if required. The convenience is that this only adds 35–40 minutes to a journey and negates the need for costly bus replacement services.
Symbols come in a shapes, with a solid and hollow version, including circle, triangle, square and diamond. When a roadway is closed, a trigger sign is opened at the last junction prior to the closure, displaying a symbol, which motorists can follow to rejoin the route at a point beyond the closure. [16]
A rollsign on the MBTA Red Line in Boston.This sign has a hand crank to change the destinations displayed, but many rollsigns are motorized. For many decades, the most common type of multiple-option destination sign was the rollsign (or bus blind, curtain sign, destination blind, or tram scroll): a roll of flexible material with pre-printed route number/letter and destinations (or route name ...
The line is also used as a diversionary route for trains serving Merthyr Tydfil, Aberdare and Treherbert when the line between Cardiff Queen Street and Radyr is closed for engineering work. In the past there were shuttle trains on the line to serve Pontypridd and beyond with one stop at Ninian Park .
Directional sign showing primary destinations only. Primary destinations are locations that appear on route confirmation signs in the United Kingdom. Most are important settlements or conurbations, but some are bridges and tunnels, or even villages that are important junctions, e.g. Scotch Corner or Crianlarich.
Capability of diversionary routes and degraded main line operation; In turn those generic issues have a geographical impact which the RUS examines under the following line sections: The Hertford loop (two-track) As well as a busy commuter route in its own right this is an important diversionary route when the main line via Welwyn is closed ...