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Driveway Assistance Device


The DAD 3.9 model is a Driveway Assistance Device (DAD) that is designed for long and short duration work zone projects for safely controlling traffic exiting driveways and/or side roads.
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  • Small footprint and lightweight design
  • Quick setup time and repositioning by hand
  • Compliant with both the MUTCD and NEMA TS-5 standards
  • Full colour LCD controller screen
  • Power is supplied by a bank of batteries with a 120 volt charger
  • Three 12″ LED signal lamps consisting of one center red circular and two red left/right arrows on either side.
  • Up to 18 DAD units can be used together in one work zone
  • 21 day operation without sun
  • 100 watt solar array
  • 8 batteries – 6 volt deep cycle

*The DAD 3.9 must be used in-conjunction with North America Traffic’s Gen 3 Portable Temporary Traffic Signals (PTTS).


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DAD 3.9

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We would be pleased to provide you with a User Field Guide, Manual, or Technical Specifications. Please complete the form below. We will require the Serial number of your unit in order to ensure that you get the correct documents.

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Excellent operations and sales staff, always get a response to my needs in a timely fashion.

Brent Jacobi
Valley Traffic Systems
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