Quote:
Originally Posted by DoubleK
Is there anyway to do this with a single track, with creative use of 'sidings' (not sure what they are called in LRT speak) to allow for travel in both directions?
In terms of capital cost how much is the civil works as a percentage? For clarity, by civil I mean track/ballast/grading/bridge structures.
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You wouldn't do this with a Monorail. One of the big disadvantages is the complexity of switches, therefore turnouts on monorails. That and their track essentially requires them to be elevated anyway, so if working in a constrained right of way you might as well just go dual track with a monorail.
In general you single track where there are space constraints. Off the top of my head, I believe Dresden has a lot of this in their Tram network. Helsinki has a bit.
Driverless operations basically necessitate that the right of way be fully separated, so again, you likely aren't saving anything if you choose to go that route.
Funiculars often single track and have turnouts to pass one another, as them both being cable driven they necessarily meet each other at the same place all the time.