This is advanced professional engineering work with supervisory responsibility in the planning, design, installation and improvement of traffic and transportation highway systems and control devices.

Employees in this class are responsible for assisting and supervising traffic signal system design, intersection channelization design, pavement marking and geometric roadway design. Work involves participation in and supervision of work units engaged in applying professional traffic engineering principles to varied projects related to the safe, convenient and economical transportation of persons and goods over the local roadway network. Duties require the application of advanced traffic engineering theory and considerable initiative and independent judgment to expedite the movement of vehicular traffic and to improve the existing transportation complex. Supervision is exercised over subordinate professional engineering, drafting and field survey personnel through assignment of projects and the review of completed work for satisfactory results. General supervision is provided by a professional engineering superior who establishes job priorities and reviews work through conferences, written reports and field inspections to insure the accomplishment of desired objectives.

ILLUSTRATIVE TASKS

Supervises and participates in the preparation of installation plans and specifications for traffic signals, signal coordination and timing; determines precise timing and phasing of all existing signal systems.

Develops new concepts in signal control utilizing analogue computer, electronic controllers and radar sensors to operate a responsive traffic signal system.

Supervises and assists in the development of geometric roadway designs and highway intersection channelization.

Carries out liaison assignments with state transportation department in the formulating of contracts for signalization and related work; reviews consulting engineering plans for conformity with state and federal standards.

Supervises a work unit in transportation planning; assigns survey projects in community development, programming and research units engaged in implementing the comprehensive

transportation plan for the metropolitan area.

Coordinates and prepares substantiating technical reports on public transportation systems, supervises the collection, analysis and evaluation of mass transit systems data.

Prepares and submits comprehensive recommendations on the functional design and operation of proposed new roadways; presents recommendations for the solution of traffic problems and high accident incidence locations.

Performs related work as required.

KNOWLEDGES, ABILITIES AND SKILLS

Considerable knowledge of the principles and theories of traffic and transportation engineering.

Considerable knowledge of mathematics through trigonometry and the statistical concepts used in analyzing engineering data.

Considerable knowledge of the principles and techniques of geometric roadway design as prescribed by the appropriate traffic regulatory authorities.

Considerable knowledge of national traffic engineering standards for uniform control device installation and utilization.

Considerable knowledge of the fundamentals of urban planning, land use and transportation study.

Knowledge of local, state and federal traffic laws and ordinances.

Ability to plan, schedule and review the work of professional, technical and survey personnel in a manner conducive to full performance and high morale.

Ability to analyze engineering and mathematical data and to deduce effective operational plans for traffic control.

Ability to express ideas clearly and concisely orally and in writing.

Ability to make complex engineering computations and to prepare meaningful statistical projections.

Ability to apply mass data to electronic data processing systems.