John Rowland wrote:
"Louis Krupp" wrote in message
...

John Rowland wrote:
snip

You could close the crossings for all vehicles except
emergency vehicles, which would have priority over trains.

trains can't be expected to
stop in time, so we don't mess with them.


I was suggesting that the emergency control room would control the red
signal for the trains so that the road would be open by the time the vehicle
reached it, but that the crossing would remain open to trains at all other
times.

OK. I understand now. The one caveat I see is that the folks in the
control room would have to know what route the emergency vehicle would
be taking; routes can vary according to traffic, driver preference, and
sometimes (speaking from experience) driver error. Stopping a train (or
a tram) short of one intersection might block another.

I'm afraid mixing emergency vehicles with level crossings is a problem
without a cheap or easy solution.

Louis