topic Re: Should the Flood sign be mapped ? in GIS Life Discussions

Should the Flood sign be mapped ?

DEAF_PROBERT_68 — Thu, 01 Jun 2023 18:35:22 GMT

Hello,

I am very curious and came in my mind is that if you have signs that show "Road May Flood" should be mapped ?

I am wonder why was it not on either Google or Apple Maps ? I heard from someone on Facebook is that a driver got nearly stuck in the water .

If the Sign is up and stand up next to a road, As a GIS Specialist or Road technician should be mapped them ?

That day it was on May 11 and we got heavy rain that day. We have roads that have dip down and a few of them are small and not deep but a few of them can be a bit slope deep a bit...

The picture is taken in Pueblo West, Colorado and we don't get very much heavy rain like you saw the picture...

On my Google or Apple apps and when I check them, there are dry small stream through it and some do not shown stream through it

Here are the pictures ...

What do you think ? It is all about safetly and prevent from people getting into the Flood and drown.

Re: Should the Flood sign be mapped ?

jcarlson — Thu, 01 Jun 2023 19:00:01 GMT

I say map everything! Something like "flood risk" would be a valuable part of a navigation network. No telling whether or not these features are in Google / Apple maps's networks, as those are closed-source, but it's common practice to add anything of this nature to OpenStreetMap using the hazard tag.

For the road in your example, I'd map the sign itself, to get its accurate position, but also add the hazard=flooding tag to the section of the highway feature as well. This still doesn't guarantee that the tag is actually used in a given routing tool, but the fact is it could be, and adding the feature enables hazard-aware routing.

Other tags, like hazard=animal_crossing or hazard=landslide can prompt a routing service to alert the user "In X miles, watch for falling rocks", "for the next X miles, be alert for animal crossings", that sort of thing.

Re: Should the Flood sign be mapped ?

DEAF_PROBERT_68 — Sun, 04 Jun 2023 19:16:57 GMT

Thanks, @jcarlson ! I don't work for the county or city but I can try and outreach them and talk to them about it... What about the national level ?

Re: Should the Flood sign be mapped ?

L77 — Tue, 27 Jun 2023 21:44:18 GMT

Our public works department maps all county road signs that are outside of city limits.

The point layer is the sign post, and there is a related table for the signs that are mounted to the sign post.

You could check to see if the county in your area is already maintaining that dataset.

Navigation app datasets are separate datasets than what the county maintains. So if you created the dataset it might be difficult to get the navigation app to add your dataset to their app. There are ways to send the data to google, but I don't know how often they actually add it to their apps.

I uploaded data before to google and I never saw the changes made to the maps.

https://contentpartners.maps.google.com/welcome

Companies like Here will gladly take your data to update the products that they maintain.

https://upload.here.com/

Re: Should the Flood sign be mapped ?

ODWC_GIS — Wed, 22 May 2024 22:24:47 GMT

The fun thing about OSM is that anyone can edit them (though they do seem to take things a bit more professionally than the casual Wikipedia editor).

Usually the State DOT will have all these signs mapped. If you can access that dataset, and the State isn't interested in dealing with OSM, you could add them all in using one of the interfaces (like JOSM).

I think some mapping products do have the road hazard signs attached to them. I know many have the speed limit signs attached. Not necessarily Google or Bing though. If they put everything on their map, you wouldn't be able to make out anything.