Jamar TRAX Apollyon Plus II, User Manual

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TRAX Apollyon Plus II User’s Manual
4-4
In this layout, channel “A” and channel “B” record independently. The A
tube is extended over one lane while the B tube is extended over two lanes.
Hits on the A tube are recorded in channel 1. Hits on the B tube are recorded
in channel 2, unless they were immediately preceded by a hit on the A tube,
in which case the B hit is ignored. When in Volume mode the TRAX can
do either a straight axle count or use the divide-by-two technique. Traffic
in the outer lane can be going in either direction.
EXAMPLE: The TRAX has been programmed to use the divide-by-two
technique. As a car approaches the tubes in the inner lane and both front and
rear axles pass over the “A” and the “B” tube, the unit records a one in the A
channel, but ignores the hit on the B channel since it occurred immediately
after the A hit. As a second car approaches the tubes in the outer lane and
both front and rear axles pass over the “B” tube, the unit records a one in
the B channel. One vehicle has been recorded in each lane of the study.
B
TRAX
A
1 foot spacing
between tubes
Layout: L2
Sensors Used: 2 Road Tubes
Spacing: 1 Foot
Count Formats: Basic, Volume Only
Data: Volume, Gap
Channels: 2 Channels, A, B-A
50 feet
26 ft.
12 ft.
24 ft.