The use of vehicles during night-time light dimmer should be used. Turn on the light inside the car so that security personnel can determine clearly and avoid using the Horn without the required.
The vehicle used during the night to use dimmer lights inside the car to guard. Security can detect clearly. Off and avoid using the horn unnecessarily.
The use of vehicles at night, should use the fire dim light inside the car to give employee treatment. The safety can be observed clearly. And not to avoid the use of the sound of the trumpet by not necessary.