[postgis-users] Can PostGIS do Route optimization / shortest pass

[Chris Matheson]

Frank Warmerdam wrote:

>On 1/6/06, Fdu (sent by Nabble.com) <lists at nabble.com> wrote:
>  
>
>> Is there route optimization functionality in PostGIS? Given starting point
>>and end point (assume there is street center line in database), does PostGIS
>>have any existing function which can calculate shortest route (in time or
>>distance)? If it does, what kind of information I can get from it? Such as
>>total route time, route length, and route description, points/polylines
>>which make the route?
>>    
>>
>
>Fay,
>
>I'm sure others know lots more about this than me, but
>you can find a routing module at:
>
>  http://www.cartoweb.org/contribs.html
>
>Best regards,
>--
>---------------------------------------+--------------------------------------
>I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
>light and sound - activate the windows | http://pobox.com/~warmerdam
>and watch the world go round - Rush    | Geospatial Programmer for Rent
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>  
>

Does anyone know of something similar for versions of PostgreSQL before 
8.0 (specifically 7.4.8)?

Chris M.