ISO 7401:2003 specifies open-loop test methods for determining the transient response behaviour of road vehicles. It is applicable to passenger cars, as defined in ISO 3833, and to light trucks.
You easily download any file type for your gadget.ISO 7401:2003, Road vehicles - Lateral transient response test methods - Open-loop test methods | ISO/TC 22/SC 9. Just read it with an open mind because none of us really know.