System Maintenance

Maintenance of the various electrical/mechanical devices that keep critical life-safety systems working in the tunnel. These systems include ventilation, CO monitoring, fire detection and suppression, as well as a back-up generator to keep these systems fully operational 24/7. This unit also takes an active support role in ensuring the operability of the closed circuit television (CCTV) cameras and lighting within the tunnel.

Provides optimized traffic signal timing and, in some areas, coordination/progression from signal to signal in the Phoenix Metro area. They also assist the regions in the state outside the Phoenix area with their signal timing and progression.  The ITS Ops team is also in charge of monitoring and adjusting the Ramp Meters so as to avoid congestion on our freeways.  They help in developing and deploying the latest in ITS technologies on a number of different projects.

Maintenance of the electrical/mechanical systems for 72 pump stations that dewater the roadways and various basins across the Valley. There are anywhere from one to six eight pumps in each station, with more than 250 pumps system-wide.

Roadway Lighting maintains approximately 185,000 fixtures as well as the accompanying supports and electrical distribution system. It is also responsible for maintenance of the more than 33,000 fixtures in the Deck Park Tunnel.

Maintenance of roughly 200 traffic signals, 350 ramp meter/count stations, 300 CCTV cameras, 140 Dynamic Message Signs (DMS), 13 communication node buildings, and 425 miles of fiber-optic communications infrastructure in the Phoenix metro area. The Statewide team is responsible for maintenance of approximately 60 CCTV cameras, 40 DMS, and 18 Roadway Weather Information Systems (RWIS) across the state (outside the Phoenix metro area).