Thursday, 29 October 2015

Limit Point Analysis



 
Limit Point Analysis
As can be seen in the diagram of a bend in the road to that in the image bellow, from the drivers visual perspective, point A and point B are combined to make the visual limit point, or the vanishing point.
As can also be seen is the broken-down orange car that will only become apparent to the driver of the red car as he gets closer to the bend.
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The speed at which the red car is traveling at will determine whether he will be able to stop in time if necessary, take emergency evasive action, or impact the rear-end of the orange car.
If the driver of the red car is using the limit point analysis as a guide to a safe speed for a particular bend in the road, he should be fine. As you are approaching the bend, to correctly analyses the limit point, you should look for one of three situations:
-The limit point ‘moves’ towards you
This means you are traveling too fast for the bend and must slow down.
-The limit point matches your speed
As you approach and begin to round the bend, the limit point moves at the same speed as you are traveling. Your vehicles is now has a matched speed with the limit point and is traveling at the correct speed for the corner.
-The limit point ‘moves’ away from you
As you approach and enter the corner, the limit point moves away from you, you may increase your speed if safe to do so, or remain at your current speed. If the limit point matches your speed as your round the corner but then begins to move away, this is an indication the corner is beginning to recede and you may accelerate if safe to do so.

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