I've seen that image - I'm unclear what the general overall light pink is.There is another map tool supplied by one of the German goverment ministries (though note they don't guarantee it's accurate), but which it is easier to see the critical infrastructure sites:
dipul
maptool-dpul-prod.dfs.de
This is what it looks like when filtered for Nurnberg, I turned off the general residential and industrial filters.
Apart from the airport control zone (effective to 50m) there is also a restricted zone around a helicopter landing pad. (Note that it is normally easy to get permission from the DFS to fly above 50 metres if you book the shoot 10 days ahead on their website.)
That's what I was saying Nuremberg is painted all red.
Got the avoiding roads and such - also that heliport is inordinately large - anyway to get clearance there since I'll be under 50 m? That heliport seems to be the major issue as I have no interest in flying over federal roads or railways. Rivers I might take my chances
