Question on UK track spacing???

[fdunne]

I am thinking of placing some quadruple track on a route I'm working on (UK based). In real life, is such track all 3.5m spacing or is it two twin 3.5m lines running close by each other?

[nexusdj]

It all depends on how much room they've got in which to place the tracks . There are sections of 4 track mainline where the spacing is down to the minimum 6 foot .
On the western region (or ex great western railway lines) on those lines that were originally built to broad gauge the lines are a lot farther apart . :)

[fdunne]

Cheers Nexus

[lewisner]

"fdunne" on UK lines the space between the two outer tracks and the two inner tracks is known as the "Ten Foot" and as the name implies its usually greater than the six foot - mainly so that there is extra clearance for signals and to lessen wind resistance between passing trains.If you look at photos of real main lines its the easiest way to get your layout right.

[fdunne]

Thanks for your help Lewisner.