Carrying weight: T=(E+Z) / MxN
T = isisindo esithwalwa ngumnikazi ngamunye
E = isisindo sezindlela zokuhamba
Z = isisindo sendawo esihambayo
M = inani lemithwalo esebenzayo kumavhili
N=umfutho wokuphepha, ngokujwayelekile uthathwa njenge 1.3~1.5
(Izici zendawo nokwabiwa okungalingani kwesisindo kufanele kucatshangelwe)