Yes, I'm still struggling with Y-junctions. One frequently encountered version is highway exits / highway splits.
-- I wonder how many drivers get it right when they're instructed to use exit 15 ! On Thu, Jul 24, 2008 at 11:44 PM, Mark Williams <[EMAIL PROTECTED]> wrote: > I think line 3, definition of a junction, needs to be '3 or more > segments' and forks in the road want taking into account; where a > Y-shape comes in at, says, 44 degrees either side, this would be quite a > pronounced junction & doesn't want ignoring. > > My car does like Marcus' one, 'At the roundabout take the nth exit'. The > record is, I think, 15th!! It needs to count service road exits as well > as proper ones - this can be confusing otherwise. > > It also has an irritating habit on motorways of telling me to turn right > at every exit (in UK, so this means 'Don't turn left' really). This is, > clearly, a thing to avoid, so your algorithm looks good! > > The other thing I do like is the prior warning; I get 2 icons, one > saying eg left turn in 5 miles, for the next event, also one warning > what comes after that - so when you get turn left....in 50 feet turn > right... it isn't a total surprise. > > Mark > > > _______________________________________________ > Routing mailing list > [email protected] > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/routing > _______________________________________________ Routing mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/routing
