| Hardware Support - Recommended Tube Lengths and Setup |
Select the layout that you would like to view:
Layout: L13
Layout Type: Traditional Road Tubes
Sensors Used: 3 Road Tubes
Spacing: Two Feet
Count Formats: Basic, Volume
Data Provided: Volume, Gap
Channels: 3 Channels, A, B-A, C-B
Layout Type: Traditional Road Tubes
Sensors Used: 3 Road Tubes
Spacing: Two Feet
Count Formats: Basic, Volume
Data Provided: Volume, Gap
Channels: 3 Channels, A, B-A, C-B
This layout is mainly used for recording traffic volumes on three 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 the first and second lanes and the C tube is installed over all three lanes.
Vehicles in the inner lane hit all three tubes, but their hits on the B & C tubes are not counted since they were immediately preceded by a hit on the A &
B tubes. Vehicles in the second lane hit the B and C tubes, but their hits on the C tube are not counted since they were immediately preceded by a hit
on the B tube. Vehicles in the third lane hit only the C tube. Note that the traffic flow of the outer lane can be either the same direction as the inner two
lanes or the opposite direction.
With this layout, you sacrifice some accuracy for the convenience of only having to use one TRAX to record
three lanes of data. For greater accuracy, use a RoadRAMP to isolate the lanes.
installed only over the first lane, while the B tube is installed over the first and second lanes and the C tube is installed over all three lanes.
Vehicles in the inner lane hit all three tubes, but their hits on the B & C tubes are not counted since they were immediately preceded by a hit on the A &
B tubes. Vehicles in the second lane hit the B and C tubes, but their hits on the C tube are not counted since they were immediately preceded by a hit
on the B tube. Vehicles in the third lane hit only the C tube. Note that the traffic flow of the outer lane can be either the same direction as the inner two
lanes or the opposite direction.
With this layout, you sacrifice some accuracy for the convenience of only having to use one TRAX to record
three lanes of data. For greater accuracy, use a RoadRAMP to isolate the lanes.
 | |  | |  | |  | |  | |  | |  |
| Making Data Collection Easier |
You are here: Home > Support > Hardware Support > Road Tube Installation > Layouts