[Talk-us] New MapRoulette Challenge - Add Surface to Highways

[Ilya Zverev]

Hey David,

Could you please clarify what TomTom support means in this case? Just creating a challenge, announcing it on a mailing list, or anything else?

Ilya

On Fri, 27 Jan 2023, at 22:08, David Salmon wrote:
> Hi All,
>  
> Thank you for the questions. I checked with a couple of colleagues and Surface is used in some applications if users want to avoid Unpaved roads during a route.
>  
> I don’t sense a consensus yet on the approach of using Paved versus a specific surface value. Would you prefer that I make the challenge Not Discoverable until there’s time to conclude the discussion?
>  
> Alternately, if there’s a topic of higher priority or interest that you’d like to see created as an editing challenge or existing challenge where TomTom could support, I’m open to suggestions.
>  
> All the best,
> David
> 
>  
> *From:* Matthew Whilden <matthew.whilden at gmail.com> 
> *Sent:* Wednesday, January 25, 2023 2:01 PM
> *To:* Eric H. Christensen <eric at aehe.us>
> *Cc:* Joseph Eisenberg <joseph.eisenberg at gmail.com>; David Salmon <David.Salmon at tomtom.com>; talk-us at openstreetmap.org
> *Subject:* Re: [Talk-us] New MapRoulette Challenge - Add Surface to Highways
> 
>  
> 
> You don't often get email from matthew.whilden at gmail.com. Learn why this is important <https://aka.ms/LearnAboutSenderIdentification>
> 
> If you want to use the data for non-routing questions I'm sure specificity can help. Like, imagine I want to estimate road maintenance costs by latitude or something of that shape.
>  
> Matt
>  
> On Wed, Jan 25, 2023 at 10:28 AM Eric H. Christensen via Talk-us <talk-us at openstreetmap.org> wrote:
>> ------- Original Message -------
>> On Wednesday, January 25th, 2023 at 11:35, Joseph Eisenberg <joseph.eisenberg at gmail.com> wrote:
>> 
>> 
>> > Why do we need surface=asphalt vs surface=concrete for highway=motorway?
>> > 
>> > Does this make a significant difference for any users?
>> > 
>> > I can certainly see the value of adding unpaved surface values for other classes of roads, but all motorways in the USA (and likely worldwide) will be paved
>> 
>> I can see that being an assumption but unless you verify that to be true you can't just summarily add that kind of data to the set.  
>> 
>> Does it make a difference?  I'm not sure.  There are definitely friction coefficient differences between the two surfaces and I'd be willing to bet that one would be more efficient to travel across than the other.  Perhaps routing engines could use this information to provide an even better, more efficient route.  Of course, that is just an idea.
>> 
>> R,
>> Eric 
>> 
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