[Openstreetmap] Satellite cost/benefit

Mark Simpkins mark at nodalpoints.org
Sat Feb 19 16:15:45 GMT 2005

On the idea of giving cyclists GPS's maybe something I can take to  
Central St. Martins as an idea. We have been doing the bikeoff.org site  
to look at bike theft and start to act as a communal hub for cyclists.  
if we could do a how-to on collecting the data we could put it on the  
site and see if there is any interest?

Humm, ok I could do with a how-to on actually using my GPS unit as well  


On 19 Feb 2005, at 16:07, Jo Walsh wrote:

> On Sat, Feb 19, 2005 at 02:40:35PM +0000, SteveC wrote:
>> The geo-coord archive is down, I was looking for figures but I seem to
>> remember 400UKP or so was being said.
> http://bat.vr.ucl.ac.uk/pipermail/openstreetmap/2005-February/ 
> 000244.html
> - minimum buy from Ikonos for this area is about 1075 dollars. (600
>   quid?) OKFN and wirelesslondon both offered to help. so we could do
>   this for less than 200 more quid. but it's not even a large area of
>   london. ( http://space.frot.org/carterra.png )
>> When I say 'our' I really mean 'whoever wants to give money to further
>> the open geodata cause'.
> - i met a donor, or right now the non-project donor, on tuesday. he
>   had a wild look in his eyes and talked about model aeroplanes. How
>   long, i wonder, would a model plane loaded with electronics last in
>   london's skyscape...
>> Second, how do you sell the idea of giving money? Buying satellite  
>> data
>> is a sexy banner to call people to.
> i think giving is not tied to Ikonos, as long as a/ that is clear and
> b/ we provide total accountability for any purchases. GPS collection
> could be 'sexy' in the right context: e.g. cyclist groups like the
> Tower Hamlets Wheelers of the Camden CC could love this; we could
> introduce a street scoreboard for cycle couriers; etc.
>> tertiary: its not very socially inclusive. One person goes and gets an
>> image, someone sits down and does GA extraction or maps streets on  
>> top.
> i suppose it's boring for a person doing map tracing not to have the
> change to do map annotation, but hopefully the tasks can be broken
> down a bit after line creation... by whatever method
>> using out of copyright data
>> ---------------------------
>> benefits: free, easy to obtain
>> costs: out of date data
> i still love the New Popular Edition idea and reckon that, at least we
> could be able to offer it as a base layer, with a WMS interface. a
> cinch with mapserver if they are / we can get them georeferenced.
> (i suppose they all have OS grid lines, and we know the likely
> projection... Richard, how is it looking since
> http://www.systemed.net/blog/entry041216225441.html )
> then hosting/bandwidth is maybe at UCL, or...?
> Sorry that this mail is basically as ambivalent as yours. Here in
> bristol i'm hoping to get my hands on an (ultimately, traced)
> line-segment-and-node street map of town... i'm not sure the creator
> sees the full glaring light of cartographic truth though... :/ but i
> am still hopeful.
> i am happy to mix and match approaches. GPS trace gathering on a wide
> scale cannot harm us at all. With the call out, and a stable friendly
> service with some feedback, we could get a metric fuckton of data fast.
> we have good momentum here, interest-wise. Schuyler's played with the
> douglas-peucker line simplication technique and got interesting if not
> totally convincing results. even a GPS layer would be a place to start
> tracing...
> one important future aspect is portability to other countries, other
> conditions. buying Ikonos becomes a tossup between different kinds of
> resources and investments, it has gloabl coverage and is easy to "see"
> as an investment rather than toys which require other toys, :/...
> -jo
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