3 ms·Does the tunnel have any curved track?by brookst 3y agoDoes the tunnel have any curved track?jcranmer 3y agoFrom openrailwaymap, it doesn't look like it.anakaine 3y agoThere could also be switching gear, signage, etc internal to the tunnel they had to deal with - if the claim is even valid in terms of this being the spurce of restriction on booster size.