Altering the circumstances under which a driver may move out of or into a lane by authorizing the move when the driver has reasonably determined it is safe to do so and activated the appropriate turn signal; prohibiting a person from moving a vehicle right or left on a roadway in order to change lanes unless the person gives an appropriate signal in a certain manner, subject to a certain exception; providing that a violation of the Act is not a moving violation for the purpose of assessing points; etc.