[talk-ph] gps traces from a delivery service company

[maning sambale]

Yes, not yet, because we currently use trace for mapping purposes
only.  I'm just sharing some options on how we can use the trace data
for some other purposes.  Mining this information is a huge task but I
believe it is possible.

Still, I had fun looking at where, I was moving fast or slow during my
bike rides :)

On Thu, Jun 11, 2009 at 12:23 AM, Eugene Alvin Villar<seav80 at gmail.com> wrote:
> Caveats: most GPX traces uploaded to OSM *are not* suitable for determining
> traffic data. In most cases, the fact that one is surveying affects how one
> drives and so the GPX data records how one surveys, not how one actually
> drives.
>
> Also, unless there's a fixed folksonomy, you cannot determine whether a GPX
> track is from a motorcycle, a car, a van, or a bicycle. Most OSMers simply
> tag their GPXs by the location.
>
> In addition, some people anonymize their GPX data by randomizing the
> timestamps or even by shifting the time data by an offset amount.
>
> In conclusion, determining traffic data from GPX will only be successful if
> there is a concerted effort to collect pristine uncorrupted data.
> Unfortunately, OSM does not (yet) encourage this method of collection. I
> think this has been discussed at the main OSM mailing list a few times
> already.
>
>
> On Wed, Jun 10, 2009 at 11:59 PM, maning sambale
> <emmanuel.sambale at gmail.com> wrote:
>>
>> On Wed, Jun 10, 2009 at 2:27 PM, maning
>> sambale<emmanuel.sambale at gmail.com> wrote:
>> > analyze timestamps and point intervals, to interpolate traffic and
>> > average speed at certain times of the day.
>>
>> Just want to share this, my average cycle speed (km/h) when mapping:
>> http://farm4.static.flickr.com/3610/3613512951_c2bd08838b_o.png
>>
>> Imagine if we scale this metro manila gps traces collected by cars, we
>> have an empirical data on the average traffic speed in the metro.
>>
>>
>> --
>> cheers,
>> maning
>> ------------------------------------------------------
>> "Freedom is still the most radical idea of all" -N.Branden
>> wiki: http://esambale.wikispaces.com/
>> blog: http://epsg4253.wordpress.com/
>> ------------------------------------------------------
>>
>> _______________________________________________
>> talk-ph mailing list
>> talk-ph at openstreetmap.org
>> http://lists.openstreetmap.org/listinfo/talk-ph
>
>
>
> --
> http://vaes9.codedgraphic.com
>



-- 
cheers,
maning
------------------------------------------------------
"Freedom is still the most radical idea of all" -N.Branden
wiki: http://esambale.wikispaces.com/
blog: http://epsg4253.wordpress.com/
------------------------------------------------------