This article is within the scope of WikiProject Trains, an attempt to build a comprehensive and detailed guide to rail transport on Wikipedia. If you would like to participate, you can visit the project page, where you can join the project and/or contribute to the discussion. See also: WikiProject Trains to do list and the Trains Portal.TrainsWikipedia:WikiProject TrainsTemplate:WikiProject Trainsrail transport articles
I believed that the original 4 car class 222s were barred from the Matlock branch line when introduced because they were too heavy. This was at the time when Class 170 DMUs were operating the route which I would guess are no lighter than a 158, therefore the 222s should be higher than RA2.
Does anyone have any further information on this? Maybe this wasn't the real reason they weren't allowed on the line!
While it may seem obvious to most, perhaps a sentence lining out exactly WHY things like axle load and spacing are important, and why rails and embankments and infrastructure must be separated into classes, would be nice? All it says is that A: they are divided into classes, and B: that axle load (and spacing) is important in figuring out which class is to be assigned. Explaining that exceeding the load on any given axle, or a load over a certain distance of track can cause damage wouldn't be out of the scope of the article, would it? It only infers this information as it is. — Preceding unsigned comment added by .45Colt (talk • contribs) 04:29, 24 January 2014 (UTC)[reply]
The loading gauge of a particular route may be the cause of a lower Route Availablity. One case in point was the Hastings Line pre-1986, where the restricted bores of the tunnels restricted stock to no more than 8' 0¼" width. This meant that dedicated rolling stock had to be used, such as the Schools class, The Hastings Units (6S, 6L and 6L) and the Class 33/2 locomotives. This should really be mentioned. Mjroots (talk) 12:03, 10 October 2014 (UTC)[reply]
@Mjroots: Do you have a source? From what I've read elsewhere (over some 30 years), the loading gauge and the route availability are two independent measures. Loading gauge is primarily based on cross-section, including shape, width and height; it takes little account of length and none of weight. By contrast, RA is primarily based upon axle load and wheelbase, and takes no account of width or height. --Redrose64 (talk) 12:57, 10 October 2014 (UTC)[reply]
@Redrose64: Beecroft, Geoffrey (1986). The Hastings Diesels Story. Chessington: Southern Electric Group. pp. 6, 8. ISBN0-906988-20-9.
Restriction 0 - can operate over all lines.
Restriction 1 - can operate over all lines except Grove Jcn - Battle.
Restriction 4 - can operate over all lines except Tonbridge - Battle and Grove Jcn - Tunbridge Wells West. This equates to BR's C1 loading gauge.
Beecroft calls it "loading gauge restriction" or "restriction", not route availability. If there is no axle load restriction, the line is effectively RA 10. --Redrose64 (talk) 16:38, 11 October 2014 (UTC)[reply]
I have just added archive links to one external link on Route availability. Please take a moment to review my edit. If necessary, add {{cbignore}} after the link to keep me from modifying it. Alternatively, you can add {{nobots|deny=InternetArchiveBot}} to keep me off the page altogether. I made the following changes:
When you have finished reviewing my changes, please set the checked parameter below to true to let others know.
This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).
If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.
