[Talk-us] The San Jose / Santa Clara border

[OSM Volunteer stevea]

On Jan 26, 2019, at 4:00 AM, Andy Townsend <ajt1047 at gmail.com> wrote:
> A mapper has recently changed this to "cut the corner off" north of the 880 between San Jose airport and Stevens Creek Mall / Westfield Valley Fair.  You can see the change at http://overpass-api.de/achavi/?changeset=66619223&zoom=18&lat=37.33883&lon=-121.93327&layers=B0TTTFT .
> 
> Some of this mapper's previous changes have had to be undone, so I did check the node change made here to see if it might be one of them.  However, according to the node history https://www.openstreetmap.org/node/373647840/history#map=13/37.3600/-121.9066 the original source of this node was a changeset quite a while ago with a description "adjust boundaries based on san jose city map, bing, and common sense ".  It therefore would be great if a local could check it if possible.

I'm fairly local (SJC is my "home airport") yet I'm not finding easily-available San José City Limit boundaries in an ODbL-compatible format which I could use to relatively quickly repair the damage.  (The user mk408 has a history of "making it up as he sees fit" OSM data entry which many have disputed or redacted, for example, many years ago he made MANY roads in the entire South Bay region — Campbell, Los Gatos, Monte Sereno, southern San José —into highway=tertiary roads, and that remained very questionable until it slowly but surely "healed itself," again, this took months-to-years).  There are some geo data at http://csj-landzoning.appspot.com/index.html which indicate the present OSM data are "largely correct," the exception being that the area directly over the northern part of the airport do not include the "leg" that "covers" runway 12L/30R and that the acute angle over taxiways V, W and W1 is more like "aligned with these taxiways, rather than cutting across them."  You really have to see them rather than expect that I can describe them with text.  They are, again, "mostly correct" but could use some rather minor correction.

As I bumped into somebody on a plane on my way back from SOTM-US Seattle (2016) who works in the San José City Hall and when she met me was bowled over at the coincidence that I was the very person sitting next to her drinking gin and tonic who entered into OSM most of Santa Clara County's bikeways/bicycle infrastructure and network=lcn routing (which the city office found "extremely helpful" — her words), it's conceivable that I might be able to use that to sway release of some data which could be forthcoming.  While I don't know quite who to call, exactly, if somebody wants to "release to me" ODbL-compatible data which need to be harmonized with what are now in OSM, I'll volunteer to be the "nexus of citizen entry" to assure they find their way into our wonderful map.  Send me a pointer to the data, assure me they are ODbL-OK and I'll "merge" these into OSM.

SteveA
California