Abstract
Instrumcntutiun aystems anrl test techniyncs Por duantitativcmeasurement of directional control proporties are presentedin this paper. Typical test data for a passenpcr car areprcsented. 'these data eliminate much suh.jectivit3 in thedeficription of vehicle dynamic behavior, aid in the i.denti-fication of desirable directional control proporties andaasfat in the developwent of productfort vehicleso