According to the preamble to the constitution , what is one purpose of government?

(the column on the right side has numbers 1-4 as well)

from left column to the right marching definition column:
1=2
2=4
3=1
4=3

The move over law is for safety of yourself and the officer and the ones pulled over, as a driver pulling over the officer control the situation with the pulled over person.

if it is an ambulance or fire truck with their sirens on it means they are having to get to an emergency so for the others safety for the emergency to save lives, pulling over lets them get through.

i hope this : )