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The correct and frequent use of the driving mirror is vital to good driving. |
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How to adjust it : |
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You must get the best possible view through the mirror. In most cars, you will be able to adjust the mirror so that it reflects three, if not all four, sides of the rear window. You can then see anything that is framed by these lines. These blind spots can be overcome by fitting mirrors outside the car, either on the front wings or on the windscreen pillars. When properly adjusted, these mirrors will help you to see the side areas, which are not reflected in the inside mirror. Even then, there may still be some blind spots, so this chapter also describes how to allow for these. |
| Fig. 3: How outside mirrors help to reduce blind spots? A - - area seen with inside mirror only
B - - area seen with inside and outside mirrors
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To set the inside mirror correctly, sit in your normal driving position and move the mirror, holding it by the edges to avoid finger marks, until you get the best possible view through the back window (especially to the offside) without moving your head. |
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Most inside mirrors are made of flat glass, and being close to the driver's eyes they give a clear picture of the road behind. Outside mirrors are usually made of curved (convex) glass, because they are farther from the eyes and they can be made to cover a wider field of view. |
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It is more difficult to judge the position and speed of other vehicles when seen in a convex mirror, and you will need practice before you can do it accurately. You will learn more quickly if you make a habit of using the outside and inside mirrors together. Compare the different views they give of the same situation. |
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Tips to use the mirror : |
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The Driving
Mirror