On 20.09.2018 07:28, Warin wrote:
On 20/09/18 09:26, Tom Pfeifer wrote:
First, how much of a delay is added by the routing engines, have you investigated this? If so,
this would be a few seconds once-per trip, not every 500m like a traffic light. Thus the
difference on the calculated overall travel time would be insignificant.
An old toll both was where I'd have to stop, dig out some money, hand it over, wait for any change,
then I could go on. 30 seconds to 1 minute unless I drop the money.
I think these are all gone now on highways and bridges. They still exist and are in use for some
National Park entries, possibly some parking places.
It's a while since I have seen them in the US for bridge toll, you would through a couple of
quarters in a funnel-shaped basket, thus a bit faster. But yes, there is a delay, but not so often
on your trip that it has significant impact on your travel time.
The main advantage of free-flow systems is that you have no breaking that causes a congestion behind
you.
Second, the problems described would be more easily and more elegantly solved with subtagging the
existing barrier=toll_booth, instead of inventing a new first level tag. Subtagging preserves
backward compatibility, while a new tag has to be implemented everywhere,
But a toll gantry has no stopping, nor slowing down. A very different beast, with the ones around
here the vehicle is meant to have an electronic device that the toll thing responds with and the
payment is deducted automatically. If you don't have one of these electronic do dads then you get a
letter .. with a higher fee. Don't know that "toll both" is how they should be tagged from a human
conceptual view point rather than the practical computing one.
All fine, just we don't need a new high-level tag for that. You can add all free-flow properties,
payment methods, average delay times, etc to the existing one. I'm always in favour of some level of
structure instead of blatant duck tagging.
tom
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