[Talk-gb-westmidlands] Proposed Import of West Mids VMS Locations

[Brian Prangle]

I've examined the data againnst aerial imagery and the Highways England
positional data for VMS signs is so poor it really precludes an import
which is sad. Signs are up to  an estimated 10m away from their gantries
and signs on the same gantry don't even line up. The Birmingham data might
be better but it's difficult to check with aerial imagery as most of them
aren't gantry-borne. I'm happy to chip away at this manually, unless anyine
feels we can still go ahead with an import and then adjust the nodes
manually- it will be a hard sell outside our group.

My proposed tagging is

traffic_sign=variable_message

variable_message_model =  e.g. 4x13 VMS MS5

variable_message_type = matrix

variable_message_type = graphic

variable_message_type  = graphic;matrix

variable_message_information = parking or maybe
variable_message=parking_information

variable_message_information = traffic or maybe
variable_message=traffic_information

traffic_sign:location = overhead

traffic_sign:location= roadside


For ways that are not oneway: ( wrt to direction the OSM way is drawn )

traffic_sign:forward = variable_message

traffic_sign:backward= varable_message


(Tagging not yet gone through an approval process)


Regards


Brian

On Sun, Nov 5, 2017 at 11:56 PM, Rob Nickerson <rob.j.nickerson at gmail.com>
wrote:

> Hi Brian,
>
> There seems to be a few types of data in there:- BCC, Highways England and
> Car Parking signs. I'm not sure if these *need* treating separately but it
> may be worth doing so anyway. The car parks should be small enough to start
> with and will enable us to get a good grip of the data.
>
> For short description the bits that seems useful is the sign size (e.g.
> 3x18) which I assume is rows and characters. In "M6/6054A" the M6 is
> obviously the road and I believe the "A" indicates which side of the road
> it is on (see: https://wiki.openstreetmap.org/wiki/Key:carriageway_ref ).
> Do you know what the "6054" means? Wait... found it! It looks like it is
> the asset reference for the structure that the sign is attached to. See for
> example:
>
> https://www.google.co.uk/maps/@52.4905635,-1.7319734,3a,15y,
> 288.18h,88.53t/data=!3m6!1e1!3m4!1sgldMiJ0rpLi97FRlvR32CQ!
> 2e0!7i13312!8i6656
>
> If all the motorway or trunk ones are like this then may put the
> "M6/6054A" bit in a tag such as gantry_ref=.
>
> Do we know what "SPICE" means? I seem to recall hearing it before but
> cannot remember. What about "MS3"/"MS4"?
>
> Finally, if we add these, do they get mapped to the side of the road or as
> a node on the road? Gut feeling is that it as a node so that it is more
> useful for data users.
>
> Thanks,
>
>
>
>
>
>
> *Rob*
>
> On 5 November 2017 at 16:15, Brian Prangle <brian at mappa-mercia.org> wrote:
>
>> Hi everyone
>>
>> I'd like to open a discussion here first before opening it to talkgb and
>> talkimport
>>
>> The raw data can be found here
>> <https://data.birmingham.gov.uk/dataset/birmingham-vms>
>>
>> It covers the West Midlands and parts of the M1 and M69 also
>>
>> Licence is OGL
>>
>> I've edited the data to give lat/lons and I've added operator tags based
>> on Motorway/Trunk being Highways England and everything else BCC.
>> I've put a copy on Dropbox
>> <https://www.dropbox.com/s/pm7knu938aqpjhg/Birmingham%20VMS%20locations.csv?dl=0>
>> so you can review the data.
>> I'd welcome feedback on what to tag the Short Description column
>>
>>
>> Issues:
>>
>> VMS tagging is a mess so I'll no doubt have to wade through a tagging
>> proposal. The most sensible approach was discussed here
>> <https://lists.openstreetmap.org/pipermail/tagging/2015-October/027155.html>
>> I've not checked against against existing OSM data which I suspect is
>> patchy and given the tagging mess difficult to do a taginfo or ovepass query
>>
>> What do you all think? Is it worth pursuing?
>>
>> Regards
>>
>> Brian
>>
>> _______________________________________________
>> Talk-gb-westmidlands mailing list
>> Talk-gb-westmidlands at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/talk-gb-westmidlands
>>
>>
>
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