Traffic Signal Operations Engineer

Job Summary

Support day-to-day operational performance of Riyadh’s signalized intersections and corridors by monitoring traffic conditions, reviewing signal timing, identifying deficiencies, and implementing approved timing improvements through the traffic signal control system.

Responsibilities

• Monitor signalized intersections and corridors using traffic signal control systems, CCTV, performance dashboards, detector information, and field observations.
• Review signal phasing, sequence, splits, cycle lengths, offsets, clearance intervals, recalls, detector settings, and controller operating parameters to identify operational issues.
• Develop and implement approved traffic signal timing adjustments for isolated intersections and coordinated corridors under established change-control procedures.
• Conduct before-and-after observations to confirm timing changes improve queues, delay, progression, throughput, and overall traffic operations.
• Support corridor progression and green-wave optimization through review of offsets, travel times, platoon movement, and coordination plans.
• Use ATSPM and high-resolution controller data to evaluate arrivals on green/red, phase utilization, split performance, and detector activity.
• Coordinate with field maintenance teams when detector failures, controller faults, communication problems, or equipment issues affect traffic operations.
• Maintain clear records of timing changes, operational observations, approval status, and measured outcomes for shift handover and future reference.

Must haves

• Bachelor’s degree in Civil Engineering, Transportation Engineering, Traffic Engineering, or closely related discipline.
• 3+ years of hands-on experience in traffic signal timing, signal operations, traffic engineering, or Traffic Control Center support.
• Working knowledge of traffic signal phasing, timing plans, cycle lengths, splits, offsets, coordination, clearance intervals, recalls, detector operations, and basic controller logic.
• Demonstrated experience monitoring and implementing traffic signal timing improvements in live operations.
• Ability to interpret traffic counts, queues, travel times, CCTV observations, detector data, controller status information, and signal-performance measures.
• Strong troubleshooting skills and ability to distinguish timing-related issues from detection, communications, controller, geometry, or demand problems.

Nice to haves

• Experience with TransSuite, McCain controllers, Econolite, Siemens/Yunex, SCATS, SCOOT, or other major signal-control platforms.
• Experience with Synchro/SimTraffic, ATSPM tools, high-resolution signal data, or adaptive signal control systems.
• Previous traffic signal operations experience in Saudi Arabia, the GCC, or another large metropolitan network.
• Professional certification such as PTOE, PTP, or equivalent; Arabic language skills are desirable.

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