Adjust Your Mirrors Properly: See section above. Start by adjusting your side mirrors to cover the blind spots. Your side mirrors should be positioned to reduce overlap with the rearview mirror, providing a wider field of view. Adjust them so you can see the rear of your car and a small portion of the adjacent lanes.
Distortion of image:Â Because the side mirrors are shaped (convex) in a way that it gives a wider field of view, it also means that objects appear to be further away than they really are.
Check the Rearview Mirror:Â Before making a lane change, glance at the rearview mirror to get a general sense of the traffic behind you.
Check the Side Mirror on the Corresponding Side:Â If you're planning to change lanes to the right, check the right-side mirror; if you're changing lanes to the left, check the left-side mirror. Look for vehicles approaching from the rear and assess their speed and distance. Also, check for motorcycles and bicycles, which may be harder to spot.
How to assess the distance of the car behind you: While checking in your rearview mirror, have a look for a marker (line or marking on the road) and then check after you have passed it, how long it takes before the front of the car behind you takes to reach that same marker. This will give you an idea of how far the car is behind you.
How to assess the speed of the vehicle behind approaching: What is also important to note is how fast the car is approaching you, so the first time you check the car may be far enough behind, but then check again to see how much closer the car is based on the time between when you checked previously.
Time spent looking in the mirror: Also make sure that you don't spend too long looking in the rearview mirror so that you are not aware of what is happening in front of you.
Look Over Your Shoulder (Optional):Â While the mirrors are essential, it's a good practice to quickly glance over your shoulder to check the blind spot. The blind spot is an area not covered by mirrors, so this additional check ensures you don't miss any vehicles.
Check the Side Mirror on the Opposite Side (Optional):Â For an extra layer of safety, you can also check the side mirror on the opposite side to verify there are no fast-approaching vehicles from that direction.
Use Turn Signals:Â Before changing lanes, always use your turn signals to indicate your intention to other drivers. This gives them a clear indication of your plans and allows them to adjust their speed or position accordingly.
Change Lanes Smoothly:Â If it's safe to proceed, change lanes smoothly and gradually. Avoid sudden or abrupt movements.
Continue Monitoring Traffic:Â After changing lanes, continue to monitor traffic using your mirrors to stay aware of your surroundings.