RISC OS Map of Signalboxes RISC OS
http://www.svrsig.org/ cgi-bin/gemap.cgi
Boxes x=4939.75931627937+40 .. 4939.75931627937-40 y=1812.90991549076+28 .. 1812.90991549076-28.
Double-click to re-centre and zoom in.
Use scroll wheel to zoom in and out.
Click 'show boxes' to refresh display.
Use dashboard to see aerial view.
Click on a box icon for more detail.
Map display by Virtual Earth.
Note: lat. and long. are shown in WGS84
coordinates. Signal boxes are positioned
using six figure grid references and they
will thus appear +100m/-20m S and/or W
from their intended position.