JAMAR Technologies TRAX I, User Manual

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TRAX I User’s Manual
4-6
L4 ó One Channel ó A ó Volume
In this layout, one tube is extended across the lanes to be counted. When in
Volume mode the TRAX I can do either a straight axle count or use the
divide-by-two technique. This layout can be used with single direction or
bidirectional traffic; however, there is no lane separation.
TRAX I
A
24 ft.
36 ft. Round
26 ft. Mini
L5 ó One Direction, No Lane Separation
A to B ó Basic, Per Veh, Binned
(Class, Speed, Gap) ó One Direction
In this layout, both tubes (A and B) are extended across the lanes to be
studied. Channel A and channel B record dependent on each other.
The tubes should be spaced eight feet apart and be of equal length.
EXAMPLE: A car is traveling southbound, approaching the tubes. As the
vehicle passes over both the A and B tubes, the speed and class of the
vehicle are registered and a one is added to the volume data. This type of
setup does not use the divide-by-two technique or axle counting in record-
ing volume. Each individual vehicle counts as only one.
B
A
24 ft.
North
TRAX I
8 ft.
36 ft. Round
26 ft. Mini