Notes
All
highways in Thailand are marked with kilometre stones, which
show the read and kilometre number on the main face. Distances
to towns in the direction of travel are marked on the sides
of the stone. In these guides the kilometre number of the stone
prior to a turning gives a location (e.g. turn onto H106 at
KM.36 means that the turning lies between kilometre stones 36
and 37).