[OSM-talk] Adding Missing Roads in the Caribbean

[Jeroen Hoek]

On 01-02-2022 13:16, Andy Townsend wrote:
> On 01/02/2022 11:08, Jeroen Hoek wrote:
>> On 01-02-2022 09:58, Alan Mackie wrote:
>>> How have these missing roads been validated? In some low lying areas 
>>> scars that look like roads can persist for decades in imagery despite 
>>> having become entirely unsuitable for travel.
>>
>> Good question, but TomTom is loath to share any details of their work. 
>> They do announce their intentions (they have been posting updates in 
>> the Dutch community subforum for the Dutch roads), but Marjan does not 
>> appear to have clearance to go into details about their source and 
>> methodology.
> 
> The key I think is that what they add (or actually, any OSM mapper adds) 
> needs to be verifiable.

Certainly. I'm not too worried about that in the Netherlands proper 
(i.e., the country on the European continent, not the whole kingdom 
which includes some Caribbean islands), because any flags their tool 
raises here can easily be verified by TomTom's mappers using the high 
quality recent satellite imagery available to all in the Netherlands. I 
do not doubt TomTom will use these as well to verify their output.

For the Caribbean I do not know if such imagery is available, and 
whether TomTom will use that. I assume they will, but I would urge 
anyone with area knowledge there to keep an eye out to assist.

On the whole I have no reason to suspect their edits will be done too 
crudely or based solely on the output of their black box tool, but it 
can't hurt to reiterate that edits should be verifiable.
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