[OSM-talk] Building bridges: Kaliningrad mapping party?

[Laurence Penney]

I was recently in Kaliningrad[1], where I had the opportunity to  
inspect its seven bridges[2], the conundrum surrounding which, solved  
by Euler, kicked off topology.

Much to my dismay I found that two of the bridges - numbers 3 and 4 if  
you start numbering from the west - no longer exist.

I wonder if, in honour of the founding father of routing, anybody is  
interested in a mapping party there. The two missing bridges would  
make a fine use of the end_date tag, with which we could enjoy some  
historic routing.

More ambitiously, now that the cathedral[3] has been beautifully  
restored with German money, I wonder if any German OSM enthusiasts  
with fund-raising talents might consider an international appeal to  
rebuild the destroyed bridges as footbridges, so that Kaliningraders  
(perhaps wedding parties, since that's who seem to dominate the island  
on a Sunday afternoon) might have the pleasure of a topological ponder  
and wander as did their German forebears.

The Brits might consider donating too, since it was the RAF that  
bombed the city to bits.

- L

[1] http://www.openstreetmap.org/?lat=54.70812&lon=20.51014&zoom=15&layers=B000FTF
[2] http://en.wikipedia.org/wiki/Seven_Bridges_of_Königsberg
[3] http://en.wikipedia.org/wiki/Königsberg_Cathedral

Earlier this month Stefan de Konink and Matt Amos wrote:
>>> ...OSM, on the other hand, uses a topological model which comes  
>>> from a graph
>>> theory background, so really we should be crediting Leonhard Euler.
>>
>> Always good to credit him :)
>
> yep. he was a total genius - invented a whole new branch of
> mathematics without which we wouldn't have amazon/netflix
> recommendations ;-)