# Priority road crossing, how to correctly map these?

 3 Just ran into a dangerous navigation comment due to this. See the situation outside Alhaurín el Grande or graphically: `````` ++++++++++ ----------------- + + +++++++++++++++++ `````` I'm traveling from left to right, the ++ refer to the main (priority) road A-404, the -- to an old route. I needed to go onto the old road, which means leaving the main road and giving way to any traffic on it coming my way. The comment however was: GO STRAIGHT ON, while IMO it should have been 'Take a left turn' or similar. I have just now, added 'priority_road=yes_unposted' to the A-404, after finding this possibility, I however do not know if this will solve the potentially dangerous situation, by giving correct comments on the route to follow. If it does, it would be a lot easier (and thus used a lot more then the, supposedly, only 2000 uses in all OSM) if this option were available in one of the drop-down menus. If it does not, how should it be mapped correctly? Additional, but related question, how do I map correctly the way back at the same crossing, where I have to GIVE WAY to the priority road? Can I add a 'Give way' sign to the intersection? If so, how? asked 03 Aug '12, 17:09 LimburgCowboy 277●4●5●15 accept rate: 0%

 0 Hi, wich traffic sings are there to show the travellers who gets the right of way ? That should give the solutions for this problem. And tag the roads accordingly. answered 03 Aug '12, 17:41 Hendrikklaas 9.1k●187●220●371 accept rate: 5% As in Spain generally the 'priority'road-sign (45º tilted square) is not used on priority roads, it can only be guesstimated that you are on one. However the users of the road entering the priority road, ALWAYS have the give-way (upside-down triangle) or STOP sign. So if I could add the give-way or STOP sign to an intersection-node that could solve part of the problem. However being able to correctly tag a priority-road as one (and being correctly interpreted by most satnav's) would be the easiest way. (03 Aug '12, 17:57) LimburgCowboy
 1 There are many different routing engines/satnavs using OSM data. All of them differ in how they interpret OSM data. Some might understand your tag `priority_road=yes_unposted` however I doubt that any will. (Note that you mistakenly used a minus sign instead of an underscore in your question). There is most likely not one true way to map this in OSM to make sure that all routing engines/satnavs do the right thing. If you are interested in one specific routing engine/satnav, you have to (a) tell us which and (b) likely talk to its authors to find out. Your idea that the situation you describe should be called "making a left turn" seems a bit outlandish to me. It is not a left turn. The instruction "straight on" will typically even be given if you have to stop at a traffic light, or if you have to cross a road that has priority - "straight on" does not usually mean that you have priority. answered 03 Aug '12, 17:31 Frederik Ramm ♦ 77.6k●88●690●1200 accept rate: 24% Corrected the underscore. In this situation 'Making a left turn' is not outlandish, as you will be leaving the designated main-road to the left. If I remember correctly my driving lessons (from long, long ago), this would also referenced as a left turn by my driving instructor. I am not interested in a specific satnav as I'm using NavFree and OsmAnd as both have their qualities in different situations. If, at the moment, there is no 'true way' to do this, would it not be time to find it? (03 Aug '12, 17:41) LimburgCowboy
 toggle preview community wiki:

### Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

Markdown Basics

• *italic* or _italic_
• **bold** or __bold__
• image?![alt text](/path/img.jpg "title")
• numbered list: 1. Foo 2. Bar
• to add a line break simply add two spaces to where you would like the new line to be.
• basic HTML tags are also supported

Question tags:

×213
×40
×4
×2
×1

question asked: 03 Aug '12, 17:09

question was seen: 4,780 times

last updated: 04 Jun '20, 16:45