Watch this video ad-free on Nebula: https://nebula.tv/videos/rmtransit-sometimes-trains-are-just-better Here at RMTransit we like trains, and in today's video, let's talk about all the things train...
Alternative title: Sometimes, Trains Are Just Better
Kinda. They are about the same speed, comparing the Scarborough Subway single TBM vs. the Eglinton Crosstown are both purpoted to travel 10m to 15m per day. Even if the speed of the smaller TBMs is a bit faster, the design of having one tunnel vs. two tunnels would be different. Costs of tunneling might vary greatly by project, accounting for each locations’ ground conditions and existing infrastructure to navigate around. So I concede that I could be wrong about the price in the general case when comparing 1 big vs. 2 small machines.
@Rentlar I though two single track tunnels were faster to bore than a single double track tunnel.
Kinda. They are about the same speed, comparing the Scarborough Subway single TBM vs. the Eglinton Crosstown are both purpoted to travel 10m to 15m per day. Even if the speed of the smaller TBMs is a bit faster, the design of having one tunnel vs. two tunnels would be different. Costs of tunneling might vary greatly by project, accounting for each locations’ ground conditions and existing infrastructure to navigate around. So I concede that I could be wrong about the price in the general case when comparing 1 big vs. 2 small machines.