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Effect of speed on vision while driving

Visual Acuity

One of the primary effects of speed is the reduction of foreground objects that are unclear due to car movement and vibration. The study showed that this range of sub-standard foreground vision increases by about 20 meters for every 10 miles of growth per hour. So within 20 miles of an hour we can't see the details within 40 meters of the car; 60 miles / hour, no 120 feet or more

Imagine driving with 20/20 vision at 60 km / h. There is a motorway sign written in three lines. This driver doesn't know the area – his memory can't help, so you have to read the signal. Previously, we have seen that this driver is able to read 5 inches from 280 meters. Now we know that when your car reaches the 120-meter mark from the sign, you cannot see the details clearly. Only 160 feet, that is, 1.8 seconds to read the signal.

A driver with 20/60 vision does not see the same signal before reaching a 93-meter point – but his near vision is the same as the first driver. Can this driver read three serial messages? The problem of reduced near-sighting explains that some drivers slow down or suddenly slow down road junctions, especially at super highway exits. You must always be aware of this danger and be prepared to suddenly take on other leaders. If you know which area you are driving in, you will have a short glance at the sign, but remember that aliens who do not know the way will take longer.

as soon as possible, or write the written message as short as you can. Super highways always have large and easy-to-read letters

Field of vision

The field of view is reduced by concentration and speed. If you focus on a single object, the field of view is zero – usually with new drivers, because they tend to think they are important to what they think. Speed ​​is also narrowing the field of view. If it stops, the driver's field of vision can be as high as 190 degrees, but the angle for the same person drops to 40 miles per 60 miles per hour. Therefore, whenever possible, highway signals are located above the road section

Distance judgment

Good judgment is dependent on good visual acuity. Because it reduces the acute speed, judging the distance will also have an adverse effect if you drive quickly.

  • Published On : 3 months ago on July 17, 2019
  • Author By :
  • Last Updated : July 17, 2019 @ 4:15 pm
  • In The Categories Of : Uncategorized

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