OpenStreetMap 開放街圖
Discovered OSM through the Skobbler website. First jobs were to align several local roads in relation to the Bing view. Also fixed a couple of roads which were connected where they shouldn’t have been, Prime Street and Mayfield Avenue. Edited turn restrictions at bottom of Keelings Road and Ivy House Road. Smoothed bottom of Cromer Road.
討論
由 Sanderd17 於 2012年07月28日 17時33分 發表的評論
Welcome to OSM.
Some remarks:
Your edits are welcome, but please keep an eye on the quality. And if you have doubts, ask us.
由 Glygoo 於 2012年07月28日 18時41分 發表的評論
Hi Sanderd17, thanks for your comments. Obviously there’s a lot to learn on OSM and I’m starting at the bottom of the mountain. The amendments I made to my local area are very minor tweaks just to get the hang of the editor. I’m only interested in adding to the map where necessary such as turn restrictions or map errors (roads connected on OSM but not in real life) to prevent routing errors, so your help is appreciated.
“This road: osm.org/browse/way/52998009/history seems to go in the wrong direction.” Originally on OSM this section was ONE WAY when travelling from S to E and connected to a section marked ONE WAY when travelling W. How can two one-way roads meet head on? Am I reading it wrong? That section of (real) road can only be driven from E to S.
Cheers GG
由 chillly 於 2012年07月28日 20時03分 發表的評論
Tracing from Bing or OS StreetView (in GB) is helpful, but a survey answers a lot of questions. Bing imagery is very helpful, but it goes steadily out of date as time goes by and it gives you very little naming information. Try a survey, just take a careful look at your local area. A digital camera is a great way to take notes. Taking a printed map out to write on can be a good way of recording details too. You will probably find things you didn’t know about.
Any edits that add real information as it is on the ground is helpful, but it’s much better if you enjoy it too because you’ll be tempted to do some more.
由 Rovastar 於 2012年07月29日 00時39分 發表的評論
Generally Bing imagery is very good around that part of the world. I am mapping down the road in Derby.
Most roads don’t change for decades so feel free to add/tweak them from the Bing imagery.
That junction looks fine (osm.org/browse/way/52998009/history) - you can see the road markings in Bing for one thing for direction - I am not sure what Sanderd17 is on about.
Oh about that junction is it really the A53 for that short distance and not the A52? Surely it is the A52 throughout there.
由 Diomas 於 2012年07月30日 19時12分 發表的評論
You have to re-align satellite images to gps tracks in any area where these photos are taken with some angle (not strongly vertical: you can see walls of high buildings) and the terrain is not flat (hills etc).
In such places offset of the bing imagery can differ from one junction to another significantly.