[Talk-us] Proposed automated motorway_link mass edit
Hi, I'm new on this list but I assume that the problem I'm talking about has been widely discussed. Someone from the US alerted me to the fact that TIGER only has one type of road link which was imported as motorway_link, and therefore you have little bits of motorway_link sprinkled liberally across the US. I propose to run a script that downgrades every motorway_link to the highest road type to which it is connected. A motorway_link that connects to a motorway remains unchanged; a motorway_link that connects a primary and a secondary road will become primary_link, one that connects two tracks (yes, these do exist) will become a track also, and everything in between. (This will sometimes cause whole sets of interconnected motorway_links to be downgraded, like this: http://www.openstreetmap.org/?lat=25.7839&lon=-80.28898&zoom=17&layers=0B00FTFT) Preliminary analysis shows that there would be roughly 28k changes across the whole US. I have prepared a full list of all proposed changes, arranged by state and county, here: http://www.remote.org/frederik/tmp/us-motorway-link-downgrade/ I invite you to make some random checks (way IDs are linked to the openstreetmap.org browse page where you get to see the map context) to see whether my script does the right thing. I would then run the script after the weekend if nobody has any objections. (Anything that is changed by hand between now and then will not be touched by the script.) Let me know what you think. Bye Frederik -- Frederik Ramm ## eMail frede...@remote.org ## N49°00'09" E008°23'33" ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Proposed automated motorway_link mass edit
On Thu, Jul 16, 2009 at 8:41 PM, Frederik Ramm wrote: > > Let me know what you think. I looked at a few of the ways near me and the changes looked good to me... -- Jeff Ollie ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Proposed automated motorway_link mass edit
At 2009-07-16 18:41, you wrote: >I propose to run a script that downgrades every motorway_link to the >highest road type to which it is connected. ... >Preliminary analysis shows that there would be roughly 28k changes >across the whole US. I have prepared a full list of all proposed >changes, arranged by state and county, here: > >http://www.remote.org/frederik/tmp/us-motorway-link-downgrade/ In San Bernardino County, CA, all but two of these were cases where the motorway_link was a ramp that had not been connected to the motorway (which I fixed). I'd encourage others to review and connect the ramps in their area of interest that are not connected, and for the bulk change to be run after that. Alternatively, maybe a script could be written to automatically link these unconnected roadways if their unconnected endpoint falls within a small distance (feet) of a motorway and then re-evaluate what is left. -- Alan Mintz ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Proposed automated motorway_link mass edit
On Fri, 2009-07-17 at 03:41 +0200, Frederik Ramm wrote: > Preliminary analysis shows that there would be roughly 28k changes > across the whole US. I have prepared a full list of all proposed > changes, arranged by state and county, here: > > http://www.remote.org/frederik/tmp/us-motorway-link-downgrade/ Frederik, that's exceedingly cool stuff. I have a validator plugin test to do this which I was testing last weekend, but yours is on a completely different scale. Notice the lack of edits in Washington, county, OR :). Yours is very nice work. Can you share some of the scripts and methods you used for this? I do think that some automated fix-bots would be nice to have run periodically for cleanups like this that are pretty easy to verify. I'd also like to look into some gluing back together of the TIGER counties and I wonder how suitable this would be. Again, very, very cool stuff. -- Dave ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Proposed automated motorway_link mass edit
very nice check. it finds a lot of problems. but the solution to fix it is wrong. checked 4 ways and on 3 it will break things even more. did the fixes in josm but did not upload yet. can send the osm file if you like to check. the tiger import has lot's of places where this is the correct fix. but it's wrong when the motorway_link is correct but just not connected to the motorway. after this change connection is still missing AND highway tag will be wrong. I think you need to break it into 2 categories. 1) links which are connected at least to 2 other highways and none of the connections is in the same category - can be fixed in most cases without breaking anything. 2) connected only to one other way. must be fixed manually. If you create the same report just for this category it will be great. and if you add a link for the josm remote plugin it will be amazing. thanks On 16 Jul 2009, at 18:41 , Frederik Ramm wrote: > Hi, > >I'm new on this list but I assume that the problem I'm talking > about > has been widely discussed. Someone from the US alerted me to the fact > that TIGER only has one type of road link which was imported as > motorway_link, and therefore you have little bits of motorway_link > sprinkled liberally across the US. > > I propose to run a script that downgrades every motorway_link to the > highest road type to which it is connected. A motorway_link that > connects to a motorway remains unchanged; a motorway_link that > connects > a primary and a secondary road will become primary_link, one that > connects two tracks (yes, these do exist) will become a track also, > and > everything in between. > > (This will sometimes cause whole sets of interconnected motorway_links > to be downgraded, like this: > http://www.openstreetmap.org/?lat=25.7839&lon=-80.28898&zoom=17&layers=0B00FTFT) > > Preliminary analysis shows that there would be roughly 28k changes > across the whole US. I have prepared a full list of all proposed > changes, arranged by state and county, here: > > http://www.remote.org/frederik/tmp/us-motorway-link-downgrade/ > > I invite you to make some random checks (way IDs are linked to the > openstreetmap.org browse page where you get to see the map context) to > see whether my script does the right thing. > > I would then run the script after the weekend if nobody has any > objections. (Anything that is changed by hand between now and then > will > not be touched by the script.) > > Let me know what you think. > > Bye > Frederik > > -- > Frederik Ramm ## eMail frede...@remote.org ## N49°00'09" > E008°23'33" > > ___ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
