I am pretty sure that I am one of the mappers that have used residential_link 
as a highway value in cases where there was a separate way for making a right 
turn from one residential road to another.

If the two roads the connecting way links are tagged as residential I don’t see 
any other choice than to use residential_link. I don’t think that service works 
for that (and some routers only allow passage over a service way at the ends of 
a route so that would mess them up). And tagging it with a higher 
classification (e.g. tertiary_link) makes no sense to me either.

The only alternative would be to tag it as residential which seems to lose some 
meaning to me as the ones I can think of are too short to have residences on 
them.

-Tod
N76 on OSM

> On Nov 9, 2015, at 10:37 PM, Andrew Guertin <[email protected]> wrote:
> 
> A question recently came up as to whether highway=residential_link is a 
> meaningful tag or whether uses of it should be changed to some other value 
> (like highway=residential or highway=service).
> 
> This tag has no description in the wiki, though it is analogous to the other 
> highway=*_link types described on 
> https://wiki.openstreetmap.org/wiki/Highway_link .
> 
> There are only 23 current uses of the tag, but many others were recently 
> removed. By going through (by hand) the recent edits of an editor who removed 
> them, I've come up with a list of 58 more objects that used it [1]. If anyone 
> knows of a programmatic way of finding objects that previously used a tag, 
> I'd be interested to know it.
> 
> Of those 81 current and recent uses that I worked with,
> * They occurred in North America (36), South America (30), Europe (11), and 
> Australia (4)
> * 35 were added in 2015, 38 were added in 2014, and the remaining 8 were 
> added in 2010-2013
> * I count 33 unique users that added the tag
> * 19 of the uses had a value for name="*", 62 did not have a name
> 
> * Of the 36 North American uses, I personally think highway=residential_link 
> makes sense on 16 of them, while 12 should be a higher highway=*_link and 8 
> should not be a _link at all.
> 
> 
> highway=residential_link is not currently rendered in openstreetmap-carto, 
> and a request for adding it in February 2015 was declined 
> (https://github.com/gravitystorm/openstreetmap-carto/issues/1280), due to low 
> usage and being undocumented. That bug mentions that it is supported in 
> various routing apps, and it WAS supported in the HOT map style until that 
> support was removed recently.
> 
> 
> So the question is, should uses of highway=residential_link be edited away, 
> should they be left as-is (unless a different highway type is clearly 
> better), or should the tag be approved and documented?
> 
> 
> --Andrew
> 
> 
> 
> 
> 
> [1] Objects that previously used highway=residential_link. This list was 
> generated by hand, and might have some mistakes. Also, not all of these 
> necessarily should have used the tag.
> 
> 275610032, 275610033, 275610026, 275610025, 275355353, 269193467, 268796394, 
> 262798921, 262715792, 262287021, 259433293, 259433291, 259136210, 256321591, 
> 256321612, 256256231, 82529183, 256250694, 256250692, 255858772, 255734560, 
> 255734548, 255734547, 255734546, 255285030, 255282915, 255282916, 242373220, 
> 240563513, 238260570, 237128774, 222995985, 318225690, 219160095, 200773019, 
> 191613798, 183497432, 174739362, 174739436, 173790274, 152304285, 95348547, 
> 87908508, 87908510, 87908507, 83285340, 54356292, 54356293, 45812108, 
> 45812107, 39722340, 35248433, 148015236, 35242001, 35121698, 35121488, 
> 18820600, 6086632, 6107802,
> 
> 
> 
> On 11/09/2015 01:39 AM, GerdP wrote:
>> I think this should really be discussed in the tagging list.
>> I only know a discussion in Germany which came to the
>> conclusion that tags like unclassified_link, residential_link and
>> service_link make not much sense:
>> http://forum.openstreetmap.org/viewtopic.php?id=26083
>> The wiki doesn't mention those _link types as well, and my
>> understanding is that only major roads have a link (if link
>> in english means what we call "Abfahrt/ Auffahrt" in Germany,
>> I would describe it as a lane that allows to decrease/increase
>> speed.
> 
> 
> 
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