[Talk-us] Naming freeway exits and onramps?

Peter Miller peter.miller at itoworld.com
Sun May 18 18:09:57 BST 2008

I think the best way to tag a junction is to combine all the elements into a
'junction' relation and then this relation can be given an identifying
reference and name. Note that the current proposal does cater sensibly with
a junction that has two different references for different roads that join
at the junction (see discussion page). A relation makes it possible for
rendering engines to just display a single point for the junction when
zoomed out.



Fyi, the dual-carriageway relation can be used to relate opposite
carriageways of the same road. This relation may be useful for renderers
that need t draw a single line when zoomed out.



General information about relations is available here:














From: talk-us-bounces at openstreetmap.org
[mailto:talk-us-bounces at openstreetmap.org] On Behalf Of Ian Dees
Sent: 18 May 2008 15:38
Cc: talk-us at openstreetmap.org
Subject: Re: [Talk-us] Naming freeway exits and onramps?


I've been tagging the point where the motorway branches off to motorway_link
with the exit number, not the exit name.

On Sun, May 18, 2008 at 4:51 AM, Alex S. <maps at swavely.com> wrote:

Alan Millar wrote:
> Up to this point I have named the onramps with the same name, but I'm
> wondering if I should use something else.

They are named the same (except 'entrance' instead of 'exit'), though
most routing systems I've come across don't use names for on-ramps -
they just call it 'on-ramp' or 'freeway entrance', so IMHO on-ramp names
don't matter.

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