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

[Eric Geiler]

To add some local and somewhat educated knowledge to this.... 99% of motorways or links (ways targeted in this project by David) in Ontario are asphalt / pavement surfaces, this is due to a few reasons... road Salt apparently eats away at concrete, roadway lifespan in winters is apparently greater with pavement vs concrete.  Also apparently the cost of repairs / ease of repairs during 4 seasons is better with asphalt than concrete.

The main motorway in Ontario that used poured concrete for a road surface was the 407 when it was first built, however expansion of the 407, including some exit/on-ramps are now constructed with asphalt / pavement.

Aside from the sections of the 407, pretty much all motorways in Ontario are asphalt / paved in my experience.

[cid:image001.jpg at 01D93199.F1B3F3C0]

From: Jarek Piórkowski <jarek at piorkowski.ca>
Sent: Thursday, January 26, 2023 3:11 PM
To: talk-ca at openstreetmap.org; david.salmon at tomtom.com
Subject: Re: [Talk-ca] New MapRoulette Challenge - Add Surface to Highways

CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.

Hello David,

Welcome to the list, and thank you for the introduction.

The task description on MapRoulette says "The goal of this challenge is to identify and add missing surface tags on motorways and motorway links as they represent high speed roads, and it is desirable to accurately tag the surface for these highways."

In this specific case, it might be easier to assume in map and router applications that all motorways in Canada are paved unless tagged otherwise. I am not aware of any exceptions, and if some exist, they are probably already tagged as unpaved. I'm seeing an analogy to defaulting to oneway=yes on motorways and only tagging the ways that are oneway=no.

If you are looking for more detail than "paved", can all MapRoulette challenge participants reliably distinguish between asphalt, concrete, and other types of pavement using aerial imagery?

Are you planning on expanding this challenge to other roads, and will those be also done using aerial imagery?

I am a little skeptical about using MapRoulette to obtain precise data like this. I have seen fords wrongly added in southern Ontario by MapRoulette users seemingly more eager to solve the task quickly than to improve the map. These users displayed little familiarity about how roads in the region actually look: crossings of streams are overwhelmingly culverts, and many streams are anyway inaccurate from an old import, but cleanup takes time, so instead they put on the ford tag and moved on. I don't think that kind of challenge really helps the map. But maybe we can set up a MapRoulette challenge to correct ford crossings on roads in southern Ontario that are actually culverts.

Curious to hear your thoughts on data quality and how MapRoulette-sourced surface information helps OSM and TomTom.

Thanks,
Jarek

On Wed, Jan 25, 2023, at 08:03, David Salmon wrote:

Hello Canada OSM Community,



I hope that the beginning of 2023 is going well for everyone.



I'd like to introduce myself - my name is David, and I have picked-up the role of TomTom Community Manager for the United States and Canada from Courtney<https://can01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.openstreetmap.org%2Fuser%2Fcourtiney%2F&data=05%7C01%7Ceric.geiler%40abcourier.com%7Cc3ad7dfa680449a3074008daffda1f46%7C57d9979d78e542e38d921484c9e04322%7C0%7C0%7C638103609540608044%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=oUIhDTcyb61BVw93QpkPJUyEP%2FNOWKOAniGcANfq3PI%3D&reserved=0>.



I'm reaching out to inform you that we have created a new MapRoulette challenge in order to add Surface to ways in Ontario. To detect the issues in this challenge, we used Overpass Turbo to select Motorways where the Surface tag was not present.



You can find the challenge here: Canada - Add Surface to Highway - January 2023 - Ontario<https://can01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmaproulette.org%2Fbrowse%2Fchallenges%2F37420&data=05%7C01%7Ceric.geiler%40abcourier.com%7Cc3ad7dfa680449a3074008daffda1f46%7C57d9979d78e542e38d921484c9e04322%7C0%7C0%7C638103609540608044%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Vmp%2FiZZFBYimxjfr5NtjdVBcHFjOYZdCsUUMm9YPqbk%3D&reserved=0>



In the description of the challenge you can find some additional information that will make it easier for you to solve the tasks.



Do not hesitate to contact me at david.salmon at tomtom.com<mailto:david.salmon at tomtom.com> to talk about possible collaborations, problems or challenges that you have detected. If you want to share them with us, we will be happy to explore how we can help.



In the meantime, happy editing!
_______________________________________________
Talk-ca mailing list
Talk-ca at openstreetmap.org<mailto:Talk-ca at openstreetmap.org>
https://lists.openstreetmap.org/listinfo/talk-ca<https://can01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openstreetmap.org%2Flistinfo%2Ftalk-ca&data=05%7C01%7Ceric.geiler%40abcourier.com%7Cc3ad7dfa680449a3074008daffda1f46%7C57d9979d78e542e38d921484c9e04322%7C0%7C0%7C638103609540764265%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=DoallPz6SZSra7MhNbHdu66NPql8beTFAWZl8PhJOls%3D&reserved=0>


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-ca/attachments/20230126/3894fd4c/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 75575 bytes
Desc: image001.jpg
URL: <http://lists.openstreetmap.org/pipermail/talk-ca/attachments/20230126/3894fd4c/attachment-0001.jpg>