This standard specifies an open-loop test method for evaluating the steady circular turning performance of a passenger vehicle by driving the vehicle at a constant speed on a circle or arc with a constant radius and gradually increasing the vehicle speed.
JIS D 1070:1998 history
1998JIS D 1070:1998 Passenger cars -- Steady state circular test procedure
1986JIS D 1070:1986 Steady state circular test procedure for passenger cars