[Tagging] Ferry frequency

Richard Fairhurst richard at systemed.net
Fri Oct 4 19:47:06 UTC 2013


John F. Eldredge wrote:
> That brings up an issue for routing in general, not 
> just cycle-routing.  The routing algorithm needs 
> to take into account the day of the week, and what 
> time it will be when you reach a point with time-
> dependent restrictions, or only intermittent 
> service (such as a bus or ferry).

Well, yes and no. There are certainly routers that do that; the very
wonderful CycleStreets has a "what time are you leaving" input field. But
it's equally possible to make the case that, for the 2% edge case (your
route includes a ferry), it's not worth cluttering up the UI for the 98% who
are just, say, cycling across town to work.

FWIW, I'm planning to flag up the presence of a ferry by saying "route
includes ferry, 5 services an hour" and let the user drag the route
somewhere else if that doesn't suit them.

cheers
Richard





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