Crossing Sight Distance
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How many times should you try to measure before leaving the pin as 'unverified' ?
When the sun is bright, it can be hard to accurately determine where you are measuring. In this case, try three times to see if you get consistent readings, otherwise leave the pin ‘unverified’.
1
2
3
4
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How far above the ground should you measure?
It’s important to measure from about 1m above the ground to cater to the prospective wheelchair users, and little people.
1m
2m
3m
4m
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What should you take a photo of?
The road
Where you measured
The nearest obstacle obstructing vision
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