polygonum wrote:


At minus some large negative number of degrees and thick with snow, I
guess the (tram) driver would rather NOT walk round.

Substitute through for round. Although there are some outside checks
that probably need to be made at the end of each trip, especially on
modern trams working in multiple.

It allows very easily for two trams (or more) to be at the end of the
route. E.g. one arrives and waits a few minutes before it is time to go
back into the city. In the meantime a second one can arrive and disgorge
its passengers.

It also allows that if a tram does breakdown, it can be pushed to and
left on the loop (at the loss of the other advantages)

Twin track is common on tram routes, and a pair of crossovers is better
than a loop and almost as cheap to build. Single track tram routes are a
pain to operate, and have much less than half the capacity of a twin
track, for (As a guess) about two thirds of the cost.

--
Tciao for Now!

John.