OpenStreetMap 開放街圖
I plan to ocasionally post about a random OSM tag which I believe should receive more attention. Due to usefulness or curiosity or even fun.
The first tag is highway=escape.
This is used to describe an emergency escape ramp, usually located at the lower end of a mountain, to help stop trucks or other heavy vehicles that are not able to stop while going down the road. It’s a very useful traffic device, and literally life-saving.
Currently it’s wiki page seems to be a rip-off of the wikipedia page. Let’s hope it get’s improved soon. :-)
Cheers, John
討論
由 Harry Wood 於 2015年01月 6日 17時31分 發表的評論
We have 170 of them mapped at the moment. Not bad
由 robbieonsea 於 2015年01月 7日 00時33分 發表的評論
Very interesting.
I remember some on Porlock Hill, UK (osm.org/#map=17/51.20620/-3.60374 - not currently mapped) and some others else where from journeys many years ago but unfortunately for remote mapping via aerial imagery is difficult / not possible as these areas tend to be covered by trees.
由 escada 於 2015年01月 7日 09時47分 發表的評論
Very nice idea to highlight little known but useful tags. The area were I live is so flat I probably won’t need this one soon :-)
由 SK53 於 2015年01月 7日 11時30分 發表的評論
Agree this is a nice idea, useful info, and simpler to execute than the old project of the week.
由 Diomas 於 2015年01月 7日 12時37分 發表的評論
Good idea!
I suggest a couple of improvements:
由 jgpacker 於 2015年01月 7日 12時47分 發表的評論
@Diomas Thanks, I changed the post like you suggested.
由 Alan Trick 於 2015年01月 7日 20時44分 發表的評論
In Canada these are called runaway lanes and I found two cases that were tagged as highway=service, they’re now changed.
由 Little Brother 於 2015年01月 8日 07時04分 發表的評論
I hope I am not being to cynical by pointing out that the tag will probably never be used. Can you imagine any driver careering down a hill with no brakes and looking at any map for an escape lane. However, having now been cynical, it is part of the highway system so it should be mapped. Well done for pointing out this highway feature!
由 JBacc1 於 2015年01月 8日 08時07分 發表的評論
Hey, routing is not the only way OSM data is used!
Anyway, good idea to spot some little used tags out here.
由 Polyglot 於 2015年01月 9日 09時22分 發表的評論
I added links to 2 Youtube videos to our wiki page
and a link to Overpass Turbo on (https://nl.wikipedia.org/wiki/Noodstopstrook) and (https://en.wikipedia.org/wiki/Runaway_truck_ramp#See_also)
由 HolgerJeromin 於 2015年01月19日 11時21分 發表的評論
here is the bugtracker for rendering this feature on the main map: https://github.com/gravitystorm/openstreetmap-carto/issues/1239