T
IME
O
VER
D
ISTANCE
M
EASUREMENT
Electronic Copy of LTI’s UltraLyte User’s Manual – 7
th
Edition June 1998
27
Measuring the Distance
If you use the instrument to calculate the reference
distance, make sure the reference points you’ve
chosen form a straight line parallel to the path of
traffic.
There are two ways to measure the distance
between the points.
One way is to stand in a spot that forms a straight
line with your two reference points—or as near to a
straight line as you can manage and still see both
points clearly. Then measure both points. The
instrument calculates the distance difference. The
difference is equal to the distance between the
points. For example:
path of traffic
d2
d1
d3
d3=d2-d1
Another way is to stand at one reference point and
measure directly to the other, like this:
path of traffic
d3
d3=d3
Decide which method you will use and, when you
are properly positioned, follow this procedure:
For Internal Use Only. Not for Distribution.
Summary of Contents for UltraLyte
Page 1: ...For Internal Use Only Not for Distribution...
Page 70: ......
