[OSM-talk] oneway=1

[Andy Robinson]

Arieh Skliarouk wrote:
>Sent: 02 October 2007 11:33 PM
>Cc: OSM-Talk Openstreetmap
>Subject: Re: [OSM-talk] oneway=1
>
>See inlines below:
>
>On 10/2/07, Martijn van Oosterhout <kleptog at gmail.com> wrote:
>> On 10/2/07, Arieh Skliarouk <skliarieh at gmail.com> wrote:
>> > When the server have not seen GPS-traces from two-ways street in
>> > known-to-be-allowed direction, but saw several traces in the other
>> > direction, that can raise "questionable" flag for the "disappeared"
>> > direction, that might trigger seeking acknowledgment from users that
>> > the street is still two-way one.
>>
>> On the whole I think this is a bad idea. In NL most mapping in cities
>> is done by bike,
>
>Again, you are speaking about minority, that dedicate their time to
>OSM and are ready to go around on bike.
>
>Just think, couple taxi drivers [compensated correspondingly] with
>GPS-tracer turned on and SD big enough in two days will cover area
>that will take bike tracer year to trace. Ok, you will not cover parks
>and pedestrian-only roads, but 99% of OSM users are primarily
>interested in getting around by car.
>
>What a waste... time of the bike users can be much better spent on
>markup and postprocessing of the GPS-traces.
>
>> precisely because 99% of one-way signs do not apply
>> to bikes. If you start deducing features of roads from traces you're
>> going to go very, very wrong.
>
>I suspect that dedicated bike-mapper would explicitly mark road
>direction as well (along with churches, rivers, bridge names, signs,
>road surface and sport type that can be practiced there). What a waste
>of time...
>
>I have added to the Beginners Guide::Collecting data page notes on
>priorities in data collection:
>
>http://wiki.openstreetmap.org/index.php/Beginners_Guide_1.1
>
>As I wrote on the page, we should run a poll on what tags OSM users
>are looking for, in order of importance.
>


Its always a good idea to back up your examples where possible with fact.

It's a fact that a logger attached to a taxi will gather only a trace. It
has none of the richness needed to create a map.

It's a fact that I am more productive mapping an urban area by bike than I
am by car.

It's a fact that a car is much quicker for mapping rural areas.

It's a fact that OSM'ers map by bike because they enjoy it and sometimes it
gets us fit ;-)

It's also a misunderstanding about what OpenStreetMap is about to suggest
there is any "priority" on what should be tagged first. When I make an edit
to wikipedia I am not following a set of rules that say I must prioritise
what I add. I add what I know, others will fill in the gaps that I don't
have the factual information for. OSM flourishes around the same policy....

... and in my view absolutely none of it is a waste!

Cheers

Andy

Andy Robinson
Andy_J_Robinson at blueyonder.co.uk