2008/12/12 D Tucny <[email protected]>: > 2008/12/12 Eddy Petrișor <[email protected]> >> >> 2008/12/11 Ulf Lamping <[email protected]>: >> > Eddy Petrișor schrieb: >> >> >> >> Solution 1: add an extra tag traffic which can be "yes" for such >> >> cameras >> >> >> >> Solution 2: new value for man_made: man_made="traffic_surveillance" >> >> for such cameras >> >> >> > >> > Solution 3: Use highway=speed_camera which is already used ~500 times >> > and >> > also will show up at least in JOSM. >> >> And what happens for intersections that are both surveilled and do >> have traffic lights? >> You just add another distinct node just for that? > > Yes, one for the location of the CCTV camera sounds good... > >> >> Also, I think the idea to call it *speed* camera is not that great >> since it can detect/trigger/be used for other traffic-related fines, >> such as illegal overtakes, level crossing related illegalities, etc. > > Are you sure? Typically there are two types of camera, those that are used > for automatic recording of offenses, speed cameras, red light cameras, > etc... and then there are CCTV cameras for surveillance and monitoring of > traffic, typically recorded but manually operated...
Is there a need to have 2 different values for those types? I think that it would be better if an extra tag would be used to make that distinction. In fact, as a driver you'd be more aware that you should be extra-careful not to accidentally break the law, no matter the local surveillance type. So I think this pair would do the trick. k="highway" v="traffic_surveillance" k="surveillance" v="manual/speed/automatic/red_light/all" >> And why, if is already used, is not documented on the Map_Features >> page? Is a discussion as this one necessary first? > > The Map Features page doesn't document everything that is widely used, it > doesn't even document everything that is rendered... There are many proposed > tags that are widely used but haven't made it on to Map Features, there are > some tags on Map Features that are very rarely used... There are more tags > that don't appear as proposed tags or on Map Features but have been used > widely... Whether a positive or a negative thing, individuals thoughts on it > vary, tags are free text, you could invent your own tag and use it as you > saw fit for anything you wanted, but you wouldn't have to document it, > renders wouldn't have to support it... Of course, but I'd rather have documented things/situations that match any of these: - are commonly used (which the current page seems to cover quite well) - are likely to be used in exceptional situations but aren't clearly documented (sometimes documented on other pages with or without links from the Feture page) - are likely to raise questions for newbies (sometimes documented directly on that page) -- Regards, EddyP ============================================= "Imagination is more important than knowledge" A.Einstein _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
