The circle r100
This site shall demonstrate the big difference between actual maps and those which simply include a circle called r100.
r100 is a circle around an urban pole called "r0", in this case the Marienplatz.
This radius can be 100 blocksOfHouses / 10 km / 100 x 100 yards.
With this, logos for metro lines, busses etc. can be formed, see examples Tokyo Metro, London Tube:
r100 also compensates the distortion on simplified network maps:
This innovation allows to form urban location codes as an alternative to "here", post codes, lat/lon or alternatives .
Such codes base on the following Munich Orientation Convention for imaginary clocks:
m12 = direction from r0/m0 to north,
m3 = to sunrise,
m6 to south
etc. The 12 main directions are also called "horizon hours" and this method divides the city like a cake into 12 "hour" sectors.
It is suggested to make the following exercises by imagination:
1) Where are the following locations?:
|m5 r150||imaginary extrapolation ( Remark: address outside of the map !! )|
2) read the code by imagination
What's the location code of the above mentioned point "here" ?
Besides: imaginary clocks help to avoid confusions www.volksnav.de/confusions
It is proposed that this circle should become a standard for fast orientation purposes.
The subdivision the horizon sectors into "minutes"allows to form codes for crossings, stations, stop points, bridges, tunnels etc., see MagicGrid