[Talk-GB] We're missing changes to M1 Junction 36 which have apparently been in place for a year.

[Paul Berry]

I adjusted the map from a trace I obtained this evening:
https://www.openstreetmap.org/changeset/67238911

Regards,
*Paul*

On Thu, 14 Feb 2019 at 12:44, Paul Berry <pmberry2007 at gmail.com> wrote:

> I intend to take a spin around the linked roundabouts this evening and try
> to capture a trace or two...
>
> Regards,
> *Paul*
>
> On Wed, 13 Feb 2019 at 21:00, Warin <61sundowner at gmail.com> wrote:
>
>> On 14/02/19 03:42, Ed Loach wrote:
>> > Paul wrote:
>> >
>> >> Jerry,
>> >>
>> >> No worries. I think I'll still pop down for a survey anyway because I
>> now want to
>> >> try the GPS + car trick and see how it turns out. We'll compare
>> changesets later :)
>> > Much of Clacton was originally mapped using that method, when there was
>> no imagery covering the area.
>> > https://www.openstreetmap.org/user/EdLoach/traces/page/79
>> > When imagery and OS opendata became available it was usually pretty
>> close. I was using (and still use) a Locosys GT-31.
>> >
>> > I have seen areas where the uploaded traces and the OSM roads seem to
>> follow the pavement in the imagery and suspect it was mapped by a walker
>> who hadn't adjusted for not walking down the middle of the road (I'm not
>> talking a constant offset here as it depended which side of the roads they
>> were walking).
>>
>> Same applies for car traces. Best to average multiple trips in both
>> directions.
>>
>> >
>> > Accuracy will depend on the receiver and signal reception.
>>
>> Yep. Multiple trips can help with everything but reception problems
>> caused by local obstructions (buildings, cliffs etc.
>>
>>
>>
>>
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>
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