Control Work Zone Traffic From Driveways And Local Streets
The Sentinel Driveway Assistance Device (DAD) is designed to alert drivers of the traffic direction before they enter a one-lane two-way road in temporary work zones from driveways or local streets. The signal head consists of one 12” diameter Red circular LED indication with two 8” diameter red arrow LED indications mounted on each side. Directional signage can be attached to the system to provide clear instructions to motorists.

Improves Work Zone Safety and Traffic Flow
The Sentinel DAD system helps eliminate driver confusion when entering work zones from a driveway or local street. It improves safety for motorists and workers – all while eliminating traffic queue build up.

The Easiest To Use DAD System Available
The Sentinel DAD system is designed with a small footprint and can be easily positioned at driveway or side street locations within a work zone. The system features a self-contained power supply with a rechargeable bank of batteries and an optional solar charging system. JTI can configure a Sentinel system to fit your specific needs.


  • Improves work zone safety and efficiency
  • Reduces confusion by informing motorists of traffic direction
  • Reduces wrong-way driving in work zones
  • Streamlines work zone traffic flow – reduces cycle lengths
  • Can control multiple driveways within the work zone
  • Conflict monitoring capabilities
  • Easy deployment and setup in minutes


The Galaxy Controller is designed to reduce signal programming time and need for technical support. It’s capable of driving a single temporary signal or an entire network. Users can program and store everything from simple flagger functions to complex 16 phase intersections. The controller features wireless programming and operation; monitors and manages power consumption; and stores a library of programs. It also enables advanced remote monitoring, diagnostic and service capabilities.


JTI’s affordable rental rate includes delivery, pick-up and expert 24/7 support.

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