| Hardware Support - Recommended Tube Lengths and Setup |
Layout: L2
Layout Type: Traditional Road Tubes
Sensors Used: 2 Road Tubes
Spacing: 2 Feet
Count Formats: Basic, Volume Only
Data Provided: Volume or Gap
Channels: 2 Channels, A, B-A
Layout Type: Traditional Road Tubes
Sensors Used: 2 Road Tubes
Spacing: 2 Feet
Count Formats: Basic, Volume Only
Data Provided: Volume or Gap
Channels: 2 Channels, A, B-A
Select the layout that you would like to view:
This layout is mainly used for recording traffic volumes on two lanes of traffic, where data must be recorded for each individual lane. The A tube is
installed only over the first lane, while the B tube is installed over both lanes.
Vehicles in the inner lane hit both tubes, but their hits on the B tube are not counted since they were immediately preceded by a hit on the A tube.
Vehicles in the outer lane hit only the B tube. Note that the traffic flow of the outer lane can be either the same direction as the inner lane or the
opposite direction.
With this layout, you sacrifice some accuracy for the convenience of only having to use one TRAX to record two lanes of data. For greater accuracy,
record each lane separately using an L4 layout, if the road location allows a TRAX to be installed on each side of the road.
installed only over the first lane, while the B tube is installed over both lanes.
Vehicles in the inner lane hit both tubes, but their hits on the B tube are not counted since they were immediately preceded by a hit on the A tube.
Vehicles in the outer lane hit only the B tube. Note that the traffic flow of the outer lane can be either the same direction as the inner lane or the
opposite direction.
With this layout, you sacrifice some accuracy for the convenience of only having to use one TRAX to record two lanes of data. For greater accuracy,
record each lane separately using an L4 layout, if the road location allows a TRAX to be installed on each side of the road.
 | |  | |  | |  | |  | |  | |  |
| Making Data Collection Easier |
You are here: Home > Support > Hardware Support > Road Tube Installation > Layouts