Loading Gauges / Route Clearance

[NSE]

Hello all, I know this may come across as a stupid question, but I've always heard of the terms "loading gauge" and "route Clearance" whilst I know in essence it means weather a train can or cannot go on a route, I don't actually know what these factors are, as in to determine it. I always assumed trains were fairly similar size wise.

Of course I know some lines are determined by power, i.e. electric trains need electricity etcc, but yeah, any help would be appreciated

Thanks!

 

[bb21]

I think this Wiki article explains the first one pretty well to a layman, especially the summary paragraph at the top.

I have also edited the title so that it includes both terms that you have referred to.

 

[NSE]

Thanks, thats a really helpful article. Much appreciated mate