While that is how you should do it most of the time (depending on how the radius, gradient and your visual range changes as you progress around the curve), my o

While that is how you should do it most of the time (depending on how the radius, gradient and your visual range changes as you progress around the curve), my observation of brake lights suggests that this is rarely practiced in the USA. The amount of braking that can be seen on multi-lane divided highways is far higher than would be necessary if drivers were paying due attention - or not resting their left foot on the brake pedal, as the case may be.