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OpenStreetMap proven to be a highly accurate map in top US cities

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Re: OpenStreetMap proven to be a highly accurate map in top US cities

#161

Post by mkl »

andrewshadura wrote: post #155
spurgu wrote: post #64

Earlier quoted context omitted.

Maps.me was on HN a couple of weeks back. MAPS.ME is gone. We must bring it back: https://telegra.ph/What-happened-to-the-old-MAPSME-12-20 https://news.ycombinator.com/item?id=25515004

The most active fork is probably OMaps. https://github.com/omapsapp https://matrix.to/#/#omapsapp:matrix.org?via=matrix.org&via=...

Surprisingly, the original is still being updated too: https://github.com/mapsme/omim

Is OMaps available for phones yet? All I can see is source code.

Re: OpenStreetMap proven to be a highly accurate map in top US cities

#162

Post by mongol »

freidenker wrote: post #159
mongol wrote: post #88

Earlier quoted context omitted.

I like Locus maps a lot. The UI is a little busy but once you get used to it you appreciate it because it really is a work of love.

And with Locus maps you can use OpenAndroMaps [1] as a map source. With their map styles [2] OpenAndroMaps are IMO the best hiking maps you can get. They even added very precise elevation data from LIDAR scans recently. [1] https://www.openandromaps.org/en [2] https://www.openandromaps.org/en/legend/elevate-mountain-hik...

Locus also have a store where they sell offline maps very similar to OpenAndroMaps for very small amounts. Not sure if they include elevation data however.

Re: OpenStreetMap proven to be a highly accurate map in top US cities

#163

Post by teddyh »

malloryerik wrote: post #107
Ayesh wrote: post #4

Good that OSM is accurate in cities as well, because in hiking, skiing, or even some ferry routes, OSM simply wins because that's often the only mapping provider to even have _any_ data. Some of my first hand experiences: - French GR-20 routes. Google maps are laughably empty, while OSM has you covered with almost the same information as the hiking maps you can buy on the trail. - Anapurna - similar to GR-20 situatio…

This is good to hear. Any idea if it's accurate with coastal data? I'm asking for a scientific project that seeks to map the locations of various seaweed strains.

There’s OpenSeaMap: https://map.openseamap.org/

Re: OpenStreetMap proven to be a highly accurate map in top US cities

#167

Post by Madzen__ »

sschueller wrote: post #165

Mapping should be something done by the government. They know the most (construction plans etc) and they need to do it anyway. The data should then be available to anyone who needs it.

Is that not common in other countries? In Norway we have Kartverket[1] which maps all properties, trails, ports and roads.

[1] https://www.kartverket.no/en

Re: OpenStreetMap proven to be a highly accurate map in top US cities

#168

Post by jokteur »

Ayesh wrote: post #4

Good that OSM is accurate in cities as well, because in hiking, skiing, or even some ferry routes, OSM simply wins because that's often the only mapping provider to even have _any_ data. Some of my first hand experiences: - French GR-20 routes. Google maps are laughably empty, while OSM has you covered with almost the same information as the hiking maps you can buy on the trail. - Anapurna - similar to GR-20 situatio…

In my country, there is an amazing government mandated service called Swiss Topo (https://map.geo.admin.ch), which can be accessed freely. Here are some features:

- detailed maps from 1:10,000 to 1:1,000,000

- hiking routes which are actively maintained. You can create your own hiking routes, and it will estimate the time that it will take to complete them.

- historical data, like historical maps since 1864 and aerial photos

- aeronautical maps, naval charts, geological maps, ...

- basically any kind of data that you can find on maps, such as land registery, water planning, spatial planning, etc.

I am not sure if other countries provide this level of service free of charge. I would be curious to see what other countries offer on this topic.

Re: OpenStreetMap proven to be a highly accurate map in top US cities

#169

Post by throwaway2245 »

djrogers wrote: post #72
throwaway2245 wrote: post #20

Earlier quoted context omitted.

Road directionality is variable over time. I'm not sure at what rate it changes but I bet it's a lot more than 1.1% per year.

Hmm, I’ve seen maybe a handful of two-way streets change to one-way over my entire life, and have never seen a one-way street change direction. If ~1% of streets changed direction every year, there’d be mass confusion and frustration.

One major thoroughfare in London changed (if I remember right) from one-way in one direction, to one-way in the other direction, to two-way, in the space of a couple of years.

People got used to it very quickly, to the extent that they would not remember the change ever happened.

If you have a broad enough roads to have two-way streets everywhere, there's little motivation for it to change. [Edited to note: at the level of individual cities, OSM's directionality was often estimated to be 100% correct]

But, with some narrower one-way streets, there becomes a clear motivation to tweak things to improve traffic flows (and also tweak the surrounding two-way streets).

Re: OpenStreetMap proven to be a highly accurate map in top US cities

#170

Post by roelschroeven »

Loic wrote: post #149
roelschroeven wrote: post #76

Earlier quoted context omitted.

Nothing is perfect, not even official paper maps. I remember a hike we did on holiday in the Drôme department of France when I was a little kid, long before OSM or Google Maps or even Microsoft's Terraserver. Must have been somewhere in the mid to late 80's, I think. We did have a paper map though, and I think it was an official topographic map. We started in one valley and the plan was to hike up the ridge and then…

For people not knowing it: https://opentopomap.org OpenStreetMap with the traditional topographic view. But I was not able to find where you wanted to hike to see the Tour de France.

I don't know exactly either, but there are some clues I thought of after I posted that story. I remember we were cheering for Flemish cyclist Fons De Wolf since he had won the stage the day before. I found out that he won stage 14 in the Tour De France of 1984 (which means my earlier estimation of mid to late 80's was not entirely correct), so the stage we observed from a distance must have been stage 15, from Domaine du Rouret in the Ardèche to Grenoble (https://en.wikipedia.org/wiki/1984_Tour_de_France#Route_and_... and https://en.wikipedia.org/wiki/1984_Tour_de_France,_Stage_12_...)

Sure enough, that passes through the Drôme departement where we were on holiday. I don't have the exact route for that stage, but it's described as a hilly stage so I assume it passed through the Vercors Massif on its way to Grenoble. That's most likely where we were that day, but where exactly I can't tell. I could ask my father but I don't think he'll remember either. It's quite a long time ago, after all.

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