You can’t really do multiple layers of tunnels with cut and cover. It also requires the tunnels to follow where you can actually cut instead of the most direct route.
> You can’t really do multiple layers of tunnels with cut and cover.
Sure you can. I ride such a line every week day.
True about the most direct route, but having uncontested right of way tends to make a big difference in travel times. And in grid layouts, where you want to go is closely aligned to how you get there.
Sure you can. I ride such a line every week day.
True about the most direct route, but having uncontested right of way tends to make a big difference in travel times. And in grid layouts, where you want to go is closely aligned to how you get there.