[OSM-talk] [OSM-dev] Developers requested to help provide"completeness" tools

[Andy Robinson (blackadder-lists)]

Inge Wallin wrote:
>Sent: 12 May 2008 6:06 PM
>To: talk at openstreetmap.org
>Subject: Re: [OSM-talk] [OSM-dev] Developers requested to help
>provide"completeness" tools
>
>On Monday 12 May 2008 18:06:59 Chris Morley wrote:
>
>> Starting with a single level of completeness makes sense, but I think it
>> should be public roads, named where feasible.
>
>I have a different view.  I think we should have a leveled scheme from the
>beginning.  I suggest the following:
>
>Level 1: All the highways (using OSM lingo) usable by cars within an area
>are
>mapped
>Level 2: All highways are mapped and named
>Level 3: All highways down to cycleways are mapped (and named if feasible).
>------
>Level 4: Level 3 + all amenities within a given set.
>Level 5: Level 4 + maybe some other amenities or buildings or whatever we
>decide.
>
>These levels map(!) nicely to how I work myself when I map out an area:
>start
>with the roads and streets for the cars, and name them. Then later go back
>to
>the area and add the cycleways. Sometimes I map a whole lot of other areas
>before coming back to map the cycleways. Regarding the levels: I can
>understand if some people would switch level 2 and 3 and I would be fine
>with
>that.

This demonstrates that really there is no one method that fits all. I map
urban areas out completely in one go, including the cycleways and footways
because just about all are accessible by bike. Occasionally I have a footway
I have to go back and do on foot but these are few and far between and they
nag at me if I leave them for very long.

Cheers

Andy

>
>When an area reaches level 3, I would say that it is "finished" for the
>purpose of finding the way (remember it's Open _Street_Map :-) ). All extra
>information is a bonus, and necessary for certain types of maps, but for
>the
>general user or a router, level 3 should be all that is needed.
>
>> This covers the essential
>> basic requirements for a number of potential applications for example,
>> routing, delivery, estate agents, bus services. The points of interest,
>> etc. are clearly desirable and but may not be always collected. For
>> instance, tracing from arial photos and naming from an out of copyright
>> gazeteer; or imports like TIGER. (Also I'm not sure I collected all of
>> them when I started 2 years ago.) Start basic and have these in a
>> subsequent level.
>
>Yes, but it would be good if we planned for at least some of the subsequent
>levels right from the start.
>
>	-Inge
>
>> Chris
>>
>> _______________________________________________