WHAT IS THE MSM PROCEDURE?
Check Main and Side Mirrors Signal / Show what you intend to do then Manoeuvre.
This system of Vehicle Control MUST be CONSIDERED in SEQUENCE at every potential HAZARD
If you are Unsure a quick check in your Blind spot could help you keep safe.
Why MUST be CONSIDERED? Do you need to show anyone what you are going to do?
What happens if you do not? What dangers can you cause?
with Use of Mirrors Why is SEQUENCE important? This is important because I am sure you would not want to Signal by Braking before checking to see if there was a Lorry speeding up behind you.
What is a HAZARD? Its anything that could cause you to change direction, speed or overtake.
Junctions, Crossroads, Roundabouts, Parked Cars, Pedestrian Crossings, Pedestrians / Children / Pets, Bends, Cycles, Queues, Signals of other road users, Road signs and Road Markings, Traffic Lights There may be others I am sure you might think of.
Remember that although you check your mirrors there is an area called the blind spot this is the area which can not be seen in the mirrors.
WHAT IS A SIGNAL?
Indicators, brake lights, reverse lights, headlights, and horn or arm signals.
Also, consider a change of speed or direction as being another type of signal.
DIFFERENT TYPES OF SIGNAL / waysto show what you intend to do
You should know the different lights that can be used to signal. Such as the Indicators, Brake & Reverse Lights.
You should also try to understand how to read & what to expect from other road users so you can plan for there change of speed or position.
Also know how and when to use the horn and flashing headlights. (HC 110 – 112)
Be careful when signalling sometime the timing can be misleading or leaving a signal on or not signalling can cause doubt & danger from other road users.
TIMING OF A SIGNAL
Beware that the timing of any signal is important. It can to lead to confusion or misunderstanding. Sometimes a signal could be misleading and lead you or another road user to react dangerously. Sometimes signals could be incorrectly used at a time that another driver might mistake what the signal means. Always consider before signalling the Use of Mirrors
It will be useful to know the various arm signals you can use and the signals that can be given by the Authorized Traffic Controllers. Pictures Below taken From Highway Code Please follow link (HC p 103 – 104)
Remember before giving an Arm Signal Use of Mirrors
Pictures taken from the Highway Code