[OSM-talk] Good routing vs legal routing (was: Path vs footway vs cycleway vs...)
frederik at remote.org
Tue Dec 1 00:37:05 GMT 2009
> But in order to make a decent
> routing application, someone is going to have to maintain a database
> of certain laws in any states they wish for their routing application
> to work.
It is certainly good to know what is allowed.
But a good routing application should also consider (and I think this
was recently mentioned by someone else) the physically possible which
might be more or less than what's legal (there are over-cautios and
litigious jurisdictions where the allowed is often a subset of the
possible, and there are laid-back jurisdictions where there's no speed
limit but if you go too fast you die and rot).
And then both axes are not really "boolean". Between the physically
possible and the physically impossible may lie an area that requires
more skill, better vehicles or simply means a higher risk of accidents.
Between the allowed and the forbidden lie several steps of badness - how
likely is it that I am found out, and what fine or punishment am I in
for if I am found out?
A good routing application will lay this wealth of information out
before you, so that you can decide whether you'd rather risk injury,
penalty and being re-born as a rat, but save time and fuel, or whether
you prefer to pay a little more for safety.
Existing commercial routing applications take the easy way out by
excluding anything that is not legal. I hope we won't!
Frederik Ramm ## eMail frederik at remote.org ## N49°00'09" E008°23'33"
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