Talk:Follo Line

top speed
It is stated: "The rail line will initially be built for 200 km/h (120 mph), but will allow for later upgrades to 250 km/h (160 mph).", but witouth sources, who (and when) claimed this about "initially be built for 200 km/h" ? The ministry of transportation (Samferdelsdepartementet, SD) (who decides everything in this project) states this in their letter to JBV September 13th 2010 : "SD legger til grunn at det i det videre utredningsarbeidet vurderes løsninger for Follobanen som ikke er til hinder for en ev. framtidig høyhastighetsbane med en dimensjonerende hastighetsstandard på 250 km/t eller mer" which (google translation) means: "SD assumes that in the further assessment work valued solutions for Follo path that is not an obstacle to a future high-speed line with a standard design speed of 250 km / h or more". So I am sort of wondering who says they're not going to build for 250 km/h in the first place, when they actually plan to have 250 km/h (or even more)? :-) Yosh3000 (talk) 23:14, 16 September 2010 (UTC)
 * Here the National Rail Administration claims the speed will be 200 km/h. The "problem" with this sort of line is that to reach a speed of 200 km/h, a train needs about 10 km to accelerate and a similar (perhaps slightly shorter section) to decelerate. So on a 22 km line, there is little possibility to reach 250 km/h (unlike on a stretch of for instance 100 km). Also, NSB does not operate any trains which are able to run faster than 210 km/h. Therefore, the speed limit on the route will be 200 km/h. Should more lines be built further south, the line may be upgraded to a higher speed to allow these trains to reach 250 km/h while still on the Follo Line. In preparation, the line is planned to be built straight enough to allow this (thus the term "dimensioned for"). Arsenikk (talk)  09:44, 17 September 2010 (UTC)
 * Thank you, but i'm still sort of unsure of the sentence. It is stated: "The rail line will initially be built for 200 km/h (120 mph), but will allow for later upgrades to 250 km/h (160 mph)", so what exactly will these upgrades consist of? (When it is allready dimensioned for 250 km/t). Just putting up a new speed limit sign? Wouldn't it be more accurate to say "The rail line will initially be built for 250 km/h (160 mph), but the speed limit will be only 200 km/t (124 mph)." ? Yosh3000 (talk) 10:49, 17 September 2010 (UTC)
 * It looks like the current information on this page is wrong, after the National Rail Administration has "changed their mind". The line seems now to be planned for 250 km/h (or faster), according to . Thanks for pointing this out. Arsenikk (talk)  23:17, 17 September 2010 (UTC)
 * Yeah, you're probably right. However, since the planning program now very recently was approved, i suppose they will come with a new version of "Fakta om Follobanen" (bacis facts) pretty soon (i've e-mailed them about this). The recent version is from 2008, sometime before december (at latest) when it was published that Kolbotn and Velvestad were no longer part of the project. This meant that it would be 19 km highspeed (no dayzone, no stops. again definetly decided in the planning program from 5 days ago), which again led to the higher possible speed. They really should publish a new version of this simultaneously with the publication of the decided planning program. The 2008 version is just confusing now... Yosh3000 (talk) 00:46, 18 September 2010 (UTC)
 * The 2010 version was released some minutes ago: http://www.jernbaneverket.no/PageFiles/12290/Fakta%20om%20Follobanen%202010.pdf . Yosh3000 (talk) 12:33, 25 October 2010 (UTC)

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