TRAFFIC SIGNAL OPERATIONS ENGINEER

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Job Description:

Parsons is looking for an amazingly talented Traffic Signal Operations Engineer to join our team! In this role, you will support the day-to-day operational performance of Riyadh s signalized intersections and corridors by monitoring traffic conditions, reviewing signal phasing and timing, identifying deficiencies, and implementing approved timing improvements through the traffic signal control system.

This is a hands-on traffic-operations role. You will work closely with senior signal timing engineers, adaptive/ATMS specialists, TCC operators, field technicians, and RCRC engineers to move signal management from reactive response toward continuous, data-driven performance improvement.

What You ll Be Doing:

• Monitor signalized intersections and corridors using the traffic signal control system, CCTV, performance dashboards, detector information, field observations, and other available operational data.
• Review signal phasing, sequence, splits, cycle lengths, offsets, clearance intervals, recalls, detector settings, and controller operating parameters to identify operational issues and improvement opportunities.
• 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 that timing changes improve queues, delay, progression, throughput, and overall traffic operations without creating unacceptable secondary impacts.
• Support corridor progression and green-wave optimization through review of offsets, travel times, platoon movement, and coordination plans.
• Identify split failures, excessive queues, wasted green time, poor detector operation, coordination breakdowns, recurring congestion, and other signal-performance deficiencies.
• Use ATSPM and high-resolution controller data, where available, to evaluate arrivals on green/red, phase utilization, split performance, detector activity, and other operational measures.
• Coordinate with field maintenance teams when detector failures, controller faults, communication problems, cabinet issues, or other equipment conditions affect traffic operations.
• Support adaptive signal operations by reviewing system performance, verifying controller and detection inputs, and escalating abnormal behavior to the appropriate specialist.
• Assist with implementation and monitoring of special-event plans, incident-response timing plans, emergency vehicle preemption, transit signal priority, and other priority operations.
• Maintain clear records of timing changes, operational observations, reasons for intervention, approval status, and measured outcomes for shift handover and future reference.
• Conduct field visits during peak periods to validate system observations and identify operational issues not evident from central monitoring tools.
• Support development of standard timing practices, signal operations procedures, corridor playbooks, performance thresholds, and TCC operational documentation.
• Provide technical support and knowledge sharing to TCC operators and junior traffic engineers on signal operations and controller behavior.
• Participate in regular signal-performance reviews and recommend locations requiring more detailed engineering analysis or geometric improvement.