4-5
In this layout, both tubes (A and B) are extended across the lanes to be
counted. Channel A and channel B record independent of each other. When
one tube is hit, the next hit is ignored. When in Volume mode the TRAX
can do either a straight axle count or use the divide-by-two technique.
EXAMPLE: The TRAX has been programmed to use the divide-by-two
technique. A car is traveling southbound, approaching the tubes. As the
front and rear axles strike the A tube, a one is registered in the A channel.
The front and rear axles then strike the B tube but these hits are ignored
since the A tube has just been hit. Conversely, a car traveling northbound
will strike the B tube first (recording it in the B channel) and then have its
hits on the A tube ignored.
B
TRAX
A
4 Inch
Spacing
Layout: L3
Sensors Used: 2 Road Tubes
Spacing: 4 Inches
Count Formats: Basic, Volume Only
Data: Volume, Gap
Channels: 2 Channels, A to B, B to A
Chapter 4 — Road Tube Layouts
North
50 feet
26 ft.
24 ft.
Summary of Contents for TRAX Apollyon Plus II
Page 1: ...i Automatic Traffic Data Recorder User s Manual JAMAR Technologies Inc TRAX Apollyon Plus II ...
Page 24: ...TRAX Apollyon Plus II User s Manual 1 18 ...
Page 46: ...TRAX Apollyon Plus II User s Manual 2 22 ...
Page 47: ...3 1 Chapter 3 Road Tube Installation Chapter 3 Road Tube Installation ...
Page 52: ...TRAX Apollyon Plus II User s Manual 3 6 ...
Page 53: ...4 1 Chapter 4 Road Tube Layouts Chapter 4 Road Tube Layouts ...
Page 70: ...TRAX Apollyon Plus II User s Manual 4 18 ...
Page 71: ...5 1 Chapter 5 Troubleshooting FAQ Chapter 5 Troubleshooting FAQ ...
Page 75: ...A 1 Appendix Appendix ...