Re: [Talk-us] MapRoulette new challenge: connectivity

2012-11-01 Thread Mike N
Overall I like what I see in the MapRoulette. The challenge is that it becomes difficult to monitor the local area. Most changes that appear in the history have 5-15 pages of ways listed, scattered across the country or world. I reviewed several in my area and found one that Bing imagery

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-30 Thread Ivan Komarov
Hi all, I've made the same experiment as James did. Got 7 of 20 tiger-specific errors, 6 of which where obvious to fix. I would fix 5 other user-introduced errors. And wouldn't touch 9 left. Indeed, MapRoulette interprets many non-obvious cases as errors. Ivan. > I just wanted to add a couple p

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-30 Thread James Umbanhowar
On Mon, 2012-10-29 at 15:25 -0600, Martijn van Exel wrote: > On Mon, Oct 29, 2012 at 2:43 PM, Ivan Komarov wrote: > > On Mon, Oct 29, 2012 at 3:33 PM, Frederik Ramm wrote: > >> If one road ends near another road, that might actually be for a reason, > >> and > >> what looks like a shadow on the

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Russ Nelson
Richard Welty writes: > On 10/29/12 10:25 PM, Russ Nelson wrote: > > Martijn van Exel writes: > > > In general, I would venture to say unedited TIGER can almost certainly > > > be improved using Bing imagery anywhere in the US. > > > > M, no, there are some counties in NY which were i

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Richard Welty
On 10/29/12 10:25 PM, Russ Nelson wrote: Martijn van Exel writes: > In general, I would venture to say unedited TIGER can almost certainly > be improved using Bing imagery anywhere in the US. M, no, there are some counties in NY which were in excellent condition, and which haven't needed

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Russ Nelson
Martijn van Exel writes: > In general, I would venture to say unedited TIGER can almost certainly > be improved using Bing imagery anywhere in the US. M, no, there are some counties in NY which were in excellent condition, and which haven't needed any editing at all. -- --my blog is at

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread the Old Topo Depot
There is a TIGER editing page at http://wiki.openstreetmap.org/wiki/TIGER_fixup which is a good start. I'm sure it can be improved. Having edited connectivity errors across the US, I can say that the large majority of fixes are obvious and simple. In general, (and I realize I'm wandering into da

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Ivan Komarov
On Mon, Oct 29, 2012 at 4:46 PM, Martijn van Exel wrote: > I wouldn't really know how to classify the problems you see in TIGER, > though. Misalignment is definitely a major one. Misclassification as > well, due to dubious choices at import (most 'residential' should > actually be 'unclassified',

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Martijn van Exel
Matthias, On Mon, Oct 29, 2012 at 3:21 PM, Matthias Meißer wrote: > I realy like the idea of gamification and looking on other continents is > very interesting :) > > But (that might be what Frederik already said), remember that the rest of > the community outside the US is quit unfamilar with TI

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Ivan Komarov
On Mon, Oct 29, 2012 at 4:21 PM, Matthias Meißer wrote: > But (that might be what Frederik already said), remember that the rest of > the community outside the US is quit unfamilar with TIGER import issues in > detail. > For example, I tried to fix a bug, but it turned out, that the road didn't >

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Martijn van Exel
On Mon, Oct 29, 2012 at 2:43 PM, Ivan Komarov wrote: > On Mon, Oct 29, 2012 at 3:33 PM, Frederik Ramm wrote: >> If one road ends near another road, that might actually be for a reason, and >> what looks like a shadow on the aerial image is in fact a fence - or the >> aerial image is outdated... >

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Matthias Meißer
I realy like the idea of gamification and looking on other continents is very interesting :) But (that might be what Frederik already said), remember that the rest of the community outside the US is quit unfamilar with TIGER import issues in detail. For example, I tried to fix a bug, but it tu

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Toby Murray
On Mon, Oct 29, 2012 at 3:20 PM, Ivan Komarov wrote: > Hi Martijn, > > Besides ways with close ends, here are thousands of (partially) > duplicated roads, mostly along county boundaries that kill road > network topology as well. They typically appear as more than one roads > having nodes at the sa

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Martijn van Exel
Hi Frederik, On Mon, Oct 29, 2012 at 2:33 PM, Frederik Ramm wrote: [..] > If I may add a word auf caution. > > I think that tools like this are a nice way to bring a bit if fun to > otherwise rather tedious mapping tasks, and I have often talked of the > "gamification" of such things myself. > >

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Martijn van Exel
Hi Ivan, On Mon, Oct 29, 2012 at 2:20 PM, Ivan Komarov wrote: > Hi Martijn, > > Besides ways with close ends, here are thousands of (partially) > duplicated roads, mostly along county boundaries that kill road > network topology as well. They typically appear as more than one roads > having nodes

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Ivan Komarov
On Mon, Oct 29, 2012 at 3:33 PM, Frederik Ramm wrote: > If one road ends near another road, that might actually be for a reason, and > what looks like a shadow on the aerial image is in fact a fence - or the > aerial image is outdated... That's true. But in the US disconnected roads are produced

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Frederik Ramm
Hi, On 29.10.2012 21:06, Martijn van Exel wrote: MapRoulette (http://maproulette.org) is back with a new challenge: ~68,000 connectivity bugs in the US to be fixed. These are ways ending very close (<5m) to another way, which means they should likely be connected, although there are of course ex

Re: [Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Ivan Komarov
Hi Martijn, Besides ways with close ends, here are thousands of (partially) duplicated roads, mostly along county boundaries that kill road network topology as well. They typically appear as more than one roads having nodes at the same positions. Does MapRoulette catches these ones too? Ivan. On

[Talk-us] MapRoulette new challenge: connectivity

2012-10-29 Thread Martijn van Exel
Hi all, MapRoulette (http://maproulette.org) is back with a new challenge: ~68,000 connectivity bugs in the US to be fixed. These are ways ending very close (<5m) to another way, which means they should likely be connected, although there are of course exceptions. Which makes it an ideal MapRoulet