Re: [talk-au] Remapping Sydney's railways
Okay just an update on this, and coming across some issues that will affect anyone trying to salvage so-called 'good' nodes.. I'm working on a section now... I see about 90% of the nodes along this way are 'red'... so let's delete them and try to salvage some good nodes. Now we're left with a small number of nodes... but hang on... these are all yellow (i.e. possible data loss). Look at the history of them... they all have revisions by CT-decliners - and so far, the revisions all are changes to their coordinates. So do I leave these partly-good yellow nodes, thus allowing them to revert back to an unpredictable location in the future? I have not yet come across a 'clean' node in the area I'm working on, not to mention the amount of time it takes to investigate each node and the reason why it's yellow. It's really not practical for a railway system with 100's of km of track that will contain thousands of nodes. There are some sections of track in Sydney which are probably clean, so I'll obviously leave these - but for the sake of efficiency, it's definitely not practical to check the version history of every yellow node during this remap exercise. BJ On 23/12/2011, at 5:45 PM, Ross Scanlon wrote: The nodes would be fine if not from a ct-declining contributor. If not then they need to be replaced. Cheers Ross On 23/12/11 14:31, Ben Johnson wrote: Thanks Ben that's a great idea. I'll keep whatever nodes I can and extrapolate from there. I really didn't want this raising old wounds, nor do I want people dwelling on it. I was just letting the community know that someone (i.e. me) is working on this particular piece of infrastructure, so that hopefully others will start rebuilding other stuff. There are plenty of things needing attention. Does it make sense to come up with a priority list of targets to remap? I'm thinking coastlines, lakes, islands, waterways, major road, rail, etc.. I reckon most "Joe-Blow" contributors in Australia are blissfully unaware of the various license inspector tools available and the actions needed to be taken. How do we wake them up? BJ On 23/12/2011, at 9:56 AM, Ben Kelley wrote: Hi. Many rail lines in Sydney would be traced from nearmap. Unless you have a survey grade GPS the existing points are probably more accurate. We can keep points mapped from nearmap even if we recreate the ways. (I haven't checked to see if the nodes are CT-OK - hoping they are. ) - Ben. Ben Kelley ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Remapping Sydney's railways
The nodes would be fine if not from a ct-declining contributor. If not then they need to be replaced. Cheers Ross On 23/12/11 14:31, Ben Johnson wrote: Thanks Ben that's a great idea. I'll keep whatever nodes I can and extrapolate from there. I really didn't want this raising old wounds, nor do I want people dwelling on it. I was just letting the community know that someone (i.e. me) is working on this particular piece of infrastructure, so that hopefully others will start rebuilding other stuff. There are plenty of things needing attention. Does it make sense to come up with a priority list of targets to remap? I'm thinking coastlines, lakes, islands, waterways, major road, rail, etc.. I reckon most "Joe-Blow" contributors in Australia are blissfully unaware of the various license inspector tools available and the actions needed to be taken. How do we wake them up? BJ On 23/12/2011, at 9:56 AM, Ben Kelley wrote: Hi. Many rail lines in Sydney would be traced from nearmap. Unless you have a survey grade GPS the existing points are probably more accurate. We can keep points mapped from nearmap even if we recreate the ways. (I haven't checked to see if the nodes are CT-OK - hoping they are. ) - Ben. Ben Kelley ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Remapping Sydney's railways
Thanks Ben that's a great idea. I'll keep whatever nodes I can and extrapolate from there. I really didn't want this raising old wounds, nor do I want people dwelling on it. I was just letting the community know that someone (i.e. me) is working on this particular piece of infrastructure, so that hopefully others will start rebuilding other stuff. There are plenty of things needing attention. Does it make sense to come up with a priority list of targets to remap? I'm thinking coastlines, lakes, islands, waterways, major road, rail, etc.. I reckon most "Joe-Blow" contributors in Australia are blissfully unaware of the various license inspector tools available and the actions needed to be taken. How do we wake them up? BJ On 23/12/2011, at 9:56 AM, Ben Kelley wrote: Hi. Many rail lines in Sydney would be traced from nearmap. Unless you have a survey grade GPS the existing points are probably more accurate. We can keep points mapped from nearmap even if we recreate the ways. (I haven't checked to see if the nodes are CT-OK - hoping they are. ) - Ben. Ben Kelley On Dec 22, 2011 4:01 PM, "Ian Sergeant" wrote: On 22 December 2011 15:16, Ben Johnson wrote: I just want to add, that I think the original v1 creator of Sydney's railways (JohnSmith) had done a fantastic job, and I had shown a few people at RailCorp who were very impressed with the level of detail - so I want it on record that I take no pleasure in having to delete and remap his fantastic work, but I guess it's time to bunker down because it just has to be done. No doubt. However, for the record, all of Sydney's railways were largely mapped before JohnSmith. I'm confident there would be substantial history there that could be recovered for most rail lines and stations prior to his involvement if required (although the degree to which it was compliant would still have to be determined). Regardless, I'm sure your remapping will be superior. Ian. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Remapping Sydney's railways
Hi. Many rail lines in Sydney would be traced from nearmap. Unless you have a survey grade GPS the existing points are probably more accurate. We can keep points mapped from nearmap even if we recreate the ways. (I haven't checked to see if the nodes are CT-OK - hoping they are. ) - Ben. Ben Kelley On Dec 22, 2011 4:01 PM, "Ian Sergeant" wrote: > On 22 December 2011 15:16, Ben Johnson wrote: > >> I just want to add, that I think the original v1 creator of Sydney's >> railways (JohnSmith) had done a fantastic job, and I had shown a few people >> at RailCorp who were very impressed with the level of detail - so I want it >> on record that I take no pleasure in having to delete and remap his >> fantastic work, but I guess it's time to bunker down because it just has to >> be done. >> > > No doubt. > > However, for the record, all of Sydney's railways were largely mapped > before JohnSmith. > > I'm confident there would be substantial history there that could be > recovered for most rail lines and stations prior to his involvement if > required (although the degree to which it was compliant would still have to > be determined). > > Regardless, I'm sure your remapping will be superior. > > Ian. > > > ___ > Talk-au mailing list > Talk-au@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-au > > ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Remapping Sydney's railways
Ian Wrote "Regardless, I'm sure your remapping will be superior." Absolutely agree - on the ground mapping from someone in the business is as good as it can get. It will always be spot on accurate and also up-to-date. I'd remap Canberra Railway station except that they are going to shove it out to Fyshwick (I'll map in out there). Nick ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
Re: [talk-au] Remapping Sydney's railways
On 22 December 2011 15:16, Ben Johnson wrote: > I just want to add, that I think the original v1 creator of Sydney's > railways (JohnSmith) had done a fantastic job, and I had shown a few people > at RailCorp who were very impressed with the level of detail - so I want it > on record that I take no pleasure in having to delete and remap his > fantastic work, but I guess it's time to bunker down because it just has to > be done. > No doubt. However, for the record, all of Sydney's railways were largely mapped before JohnSmith. I'm confident there would be substantial history there that could be recovered for most rail lines and stations prior to his involvement if required (although the degree to which it was compliant would still have to be determined). Regardless, I'm sure your remapping will be superior. Ian. ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
[talk-au] Remapping Sydney's railways
Just a heads up... I've started remapping Sydney's railway lines, given about 80% of them are marked to be wiped. I am a CityRail train driver and regularly travel over most of these train lines and have intimate knowledge of them - including track direction, electrification details, location of points, names of tracks and sidings, speeds, etc.. and I also do a lot of GPS traces while driving trains. I don't mind undertaking this task, and once complete I'll add the passenger route relations. At this stage I'll stick with what I know best - i.e. the Sydney suburban area bounded by Berowra, Bondi Junction, Cronulla, Waterfall, Macarthur, Emu Plains and Richmond. My focus will be on the actual train tracks first. Thought I'd let the community know, so that others may concentrate their efforts on remapping other priority stuff - and I guess it makes sense to start with things you know the most about. I just want to add, that I think the original v1 creator of Sydney's railways (JohnSmith) had done a fantastic job, and I had shown a few people at RailCorp who were very impressed with the level of detail - so I want it on record that I take no pleasure in having to delete and remap his fantastic work, but I guess it's time to bunker down because it just has to be done. Cheers, BJ ___ Talk-au mailing list Talk-au@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-au
