I think that it would be far more complex than what you are talking
about, but you might want to look at Cyclopath.  http://cyclopath.org/

http://cyclopath.org/wiki/Frequently_Asked_Questions#I_want_to_set_up_a_Cyclopath_in_another_city.

David.

On Fri, Sep 25, 2009 at 11:42 AM, Anselm Hook <[email protected]> wrote:
> I put together a locative framework for basic geoblogging at
>
>  http://github.com/anselm/locative
>
> It needs love but it does the basics - I'm hoping to improve it but
> it's a low priority at this point. It is a generic extract that I
> pulled out of another project when I realized I was building yet again
> another locative media framework. I looked around earlier this year
> and did not see one off the shelf that I could use - which I would
> have figured would be a totally killed problem today.
>
> My feeling about how this kind of stuff should be done :
>
> 1) These days it's not a big deal. In fact your biking site looks
> pretty good as is.
>
> 2) Database schema and the like isn't that nettlesome either. Most of
> the time most of the subjects that you're dealing with - in most web
> applications - are :
>
>              title -> a string
>              link -> a string
>              description  -> a string
>              tags -> an external table
>              location -> a long lat pair
>              depiction -> a separate table of images
>              sponsor -> the owner or creator human
>              permissions -> public, protected, private? etc.
>              parent -> see comment below ( # 3 )
>              kind -> see below
>
> You might also want to capture cycle paths and stuff like that - but I
> won't bother going into that here since you didn't mention it as a
> need. Nevertheless it can be done without too much more work either.
>
> 3) I like the idea of being able to make a "map" or a "group" that
> collects a series of related points. So in each object I have a parent
> field which indicates a parent object. Since I like to also build game
> like directed acyclic graphs I keep key concepts in a single database
> schema. For me a "collection" and a "point" are the same kind of
> object except with a "kind"
>
> 4) I use google maps - yes lazy I know... There are lots of choices here.
>
> 5) I would expose a json or xml api of course as mentioned earlier.
>
> 6) I'd do it in Ruby on Rails ...  I like the grammar.
>
> 7) I'd make it as open source as possible including the data.
> Ownership is a liability not an asset.
>
> 8) I *MIGHT* look at replicating my data store into something durable
> like google mapmaker or the like if you are really concerned about the
> system falling over and data being lost. What would be *really* cool
> is doing the entire thing in one of the new free hosted environments
> like freebase or the like - it's a huge risk that you'll lose your
> data - basically that's the most likely thing... and it's annoying to
> have to host, babysit and maintain a site over time - especially if
> you have dozens of projects up and running over the years.  No real
> answers here however.
>
> 9) The best way to protect a project is to have a community of other
> developers around it. Solitary projects disappear into the dustbin of
> history pretty quickly.
>
> 10) I like postgresql because there's always that possibility of using
> its spatial support ( although I rarely use that as it turns out ).
> Also I really like the tsearch2 engine which lets me do full text
> search AND ordinary queries ( unlike say bolting SOLR or other engines
> onto the side ). Also it scales well, you can partition and replicate
> your data over many servers.
>
> 11) I like to have a direct view on my database schemas and tables - I
> use a tool called "Active Scaffold" to do this - it is a bolt on to
> Ruby on Rails. The code above implements it.
>
> 12) I try to decimate my projects into pieces; using worker agent
> threads rather than doing a lot of work in the web or user facing
> side. So if there are grooming operations that are compute intensive
> it helps to get them out of the way and design the UI experience
> around the fact that results may be deferred.
>
> My biases are pretty much clear; I guess if you're into other
> languages and tools it's worth digging around - I'm sure the
> equivalent exists for php, python, c#, java etcetera. Generalizations
> of the above pattern however might do the trick for you.
>
> me
>
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