VolksNav in Nigeria: starting with urban radius r100
Location codes for targets, crossings, stop points, bridges etc. look like this:
| StatusQuo(c) Abuja m4:7 r22 |
The conventions for this format with hours, minutes and radius are as follows:
StatusQuo(c) |
prefix of a location code | Bases on an relevant point (urban pole) called m0 or r0. Example Abuja: main crossing |
m12 |
basic horizon hour | This is the direction from urban pole to north. m3 will be to east, m6 to south etc. This method divides the city like a cake into 12 sectors. |
number after the " : " |
horizon minutes | distance to the horizon hour, in steps of 100 meters. |
r... |
radius |
This is the distance to the pole, in steps of 100m. The small red circles show "CityName r100" = 10km radius. |
