Installing Permanent Traffic Counters

Warm Springs Reservation

2004

Typical Permanent Site

Cost $28,000 for 4 sites with software included.

Constructed by tribal construction department with aid of electrician to set meter base and connect to local power grid.

Permanent Site After Overlay

Workzone Traffic Control

• Note flaggers and traffic cones diverting traffic from work area.

Traffic Control Sign

• Note warning sign placed 500 feet before flaggers and work zone for traffic counter installation.

Worker cutting groove

• Worker cutting groove with small portable saw.

Cleaning Groove

• Worker (left) cleaning cut groove with compressed air.• Worker (right) feeding loop wire into cleaned groove.

Forming Wire Loop

• Worker feeding wire into cut groove to form detection loop for counter. Needed to match wire size and groove width.

• Four loops needed to detect speed, direction and length of vehicles.

Feeding Wire in Loop

• Worker on right feeding loop wire into cut groove.

• Worker on left filling groove with joint compound.

Cutting Grove and Filling Loop

• Larger Diamond Edge saw cutting groove for loop installation (foreground)

• Filling groove with joint compound (middle ground)

• Flagging traffic (background)

Sealing Loop with Joint Compound

• Worker sealing corner of loop with joint compound.

• Note angled corner of loop groove to ease bending of wire to loop shape.

Worker sealing loop

Note angled corners of 6 foot square loop and larger pavement saw.

Sealing of Loops

• Workers sealing of loops with joint compound to prevent traffic damage and keep water out of pavement.

• Lots of pictures of sealing loops…..much time involved in this step.

Shoulder Trench

• Note shoulder trench for leads from the 4 detection loops.

• 8 leads from the 4 loops buried from the shoulder to the traffic counter cabinet.

Connecting Loops to Cabinet

• Worker installing leads from 4 loops up to bottom of traffic counter cabinet.

• Note cabinet installed too high above ground for this installation.

Traffic Counter Cabinet

• Permanent traffic counter cabinet.

• Note 110 volt meter base and circuit breaker on back of pole.

Inside of Cabinet

• Note Wiring diagram on lid, circuit breaker, power supply, loop lead in wires, and traffic counter.

Inside of traffic counter

• Note inside of traffic counter. 16 key pad entry interface, led display, on/off switch

LED interface

• LED interface for counter. Display shown is typical for downloading information to datahog device.

Wiring Connections for Counter

• Wiring connections to permanent counter. Connections from left to right, power input, download cable, loop connector and datahog download device.

End of Presentation

Thank You