Description
Conduct on-site investigations of traffic incidents, complaints, and roadway operations; collect, document, and analyze traffic data and physical evidence to assess flow, safety, signal timing, and lighting; prepare reports and recommendations under direction of a traffic engineer.
- • Respond to public complaints and inquiries; gather statements and evidence on traffic issues.
- • Prepare crash scene diagrams, location sketches, and GIS maps of problem areas.
- • Recommend traffic control improvements based on investigative findings.
- • Analyze traffic, crash, citation, and speed data to identify causes and remedies.
- • Prepare work orders for repairs, maintenance, or adjustments resulting from investigations.
- • Evaluate lighting, sign visibility, and markings to assess their role in incidents.
- • Inspect construction and development sites to evaluate traffic impacts and safety controls.
- • Document condition and placement of pavement markings; recommend changes or restriping.
- • Deploy and operate traffic counters; record vehicle and pedestrian volumes and movements.
- • Provide technical guidance to field staff during investigations and data collection.
- • Compile and code hand counts, machine tapes, and radar checks for analysis.
- • Install, secure, and retrieve automatic counters and sensors using power tools.
- • Measure and record vehicular speeds using radar or timing devices.
- • Investigate bottlenecks and delays, noting duration, queue lengths, and speeds.
- • Review and verify traffic control plans for events or work zones; advise on permits or revisions.
- • Prepare charts, graphs, and diagrams to document findings and support conclusions.
- • Recommend procedures for street closures and detours based on safety assessments.
- • Calculate and verify signal timings or speed zones using standard formulas.
- • Monitor projects for compliance with traffic control requirements and permit conditions.
- • Maintain and perform minor field repairs on traffic survey and investigation equipment.
- • Time signals and other delays using stopwatches to validate operations.
- • Assess parking utilization and safety; recommend short- and long-term improvements.
- • Provide timely traffic and road condition information to the public and stakeholders.
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Tasks & skills:
O*NET occupational data (work activities, skills, knowledge).
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This site includes information from O*NET by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under the CC BY 4.0 license. Career Clutch has modified some of this information for student readability. USDOL/ETA has not approved, endorsed, or tested these modifications. O*NET® is a trademark of USDOL/ETA.
Last reviewed: Jan 2026
