[Talk-us] exit_to vs destination

[Martijn van Exel]

Yes, Steve, I was also talking about this use of destination= on the
main motorway ways to indicate 'the next significant settlement' that
is consistently listed on the through signs and (some) onramp signs.
They have versions of the control city concept in most countries with
a freeway system. So we would not need to change the meaning of any
tags or invent new ones - this is what destination= was designed for
as I understand it - when used on the main motorway ways. When used on
off / onramps, they would contain the destinations listed on the exit
sign, without refs, separated by semicolons.

Martijn

On Wed, Jun 25, 2014 at 5:04 PM, stevea <steveaOSM at softworkers.com> wrote:
> Martin van Exel writes:
>>
>> Following the examples on the wiki, I think it should be fine to tag
>> destination=Holt Rd on the motorway_link in this case:
>> http://www.aaroads.com/midwest/indiana070/i-070_eb_exit_077_04.jpg -
>> for example. Or am I getting that all wrong? The confusion arises
>> partly from the strange terminology used on the wiki page like
>> 'uplinks' and 'downlinks' - I don't understand what those are.
>
>
> I don't know for certain what "uplink" and "downlink" are either, but based
> on their usage, I strongly suspect they are British English words to
> respectively describe "onramp" and "offramp" (in US English).
>
> BTW, "control city" is the name I have heard transportation/highway
> engineers use to describe the name of a "destination" on a sign telling you
> that if you continue (straight, either in this lane or via this onramp) you
> "go here."
>
> For example, around here, there are two ways to get north to San Francisco:
> either via the coastal route on Highway 1, or "over the hill" (Santa Cruz
> mountains) via Highway 17, through Silicon Valley and up the Peninsula.  For
> the former, the "control cities" listed on highway overhead signs are:
>
> Half Moon Bay
> San Francisco
>
> For the latter, they are:
>
> San Jose
> Oakland
>
> (and then you interchange to I-280 to get from 17 to San Francisco,
> otherwise you head to Oakland).
>
> I'm not advocating that we change the destination tag to control_city, just
> making an observation that might be helpful for discussion purposes here in
> the USA.
>
> SteveA
> California

-- 
Martijn van Exel
http://oegeo.wordpress.com/
http://openstreetmap.us/