[OSM-talk] Highway=trunk : harmonization between countries ?

djakk djakk djakk.djakk at gmail.com
Sat Feb 24 06:59:45 UTC 2018


Yes, but this rendering does not change when a road crosses a border ^^

djakk


Le sam. 24 févr. 2018 à 05:43, JB <jbosm at mailoo.org> a écrit :

> There is something I don't get.
> Draw primary the same color as trunk and you have no more «
> discontinuity »?
> In France, some commercial map (the most sold, I think) use a different
> rendering for trunk and primary, because you drive faster on trunks. I
> like it, I think they like it, because they have been using this
> rendering for decades.
> JB.
>
> Le 24/02/2018 à 04:45, Fernando Trebien a écrit :
> > As an exercise (and I'm curious about your thoughts on this), I found
> > the main routes between place=city within Czechia (didn't have time to
> > include cities in adjacent countries, bear that in mind).
> >
> > Here's the result [1] using the old colour scheme (motorway=blue,
> > trunk=green, primary=red; with a little mistake: secondary=yellow).
> > Top image uses the current classifications, and bottom image is the
> > result if city-city routes are classified as trunks. Looks very
> > similar to most other maps. Just by looking at it, it's quite obvious
> > which is the main route between each pair of cities. As expected, the
> > method also found out the best ways through and around Praha when
> > going across it. This could also be slightly improved - for example,
> > with little extra time, it is easier to recommend going through route
> > 6 and then Karlovarská than through route 5 and Bucharova.
> >
> > I've checked the three small secondary segments using Street View.
> > Their physical structure is quite good. If still considered
> > undersirable, there are alternative main ways that increase the total
> > time of travel very slightly. Not all routers agreed on taking them
> > anyway.
> >
> > [1] https://i.imgur.com/qFGSveX.jpg
> >
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