Transportation Engineers

Salary Overview

Job Outlook (2024–2034)

Key Skills

Knowledge Areas

What They Do

• Design or prepare plans for new transportation systems or parts of systems, such as airports, commuter trains, highways, streets, bridges, drainage structures, or roadway lighting.
• Check construction plans, design calculations, or cost estimations to ensure completeness, accuracy, or conformity to engineering standards or practices.
• Prepare administrative, technical, or statistical reports on traffic-operation matters, such as accidents, safety measures, or pedestrian volume or practices.
• Plan alteration or modification of existing transportation structures to improve safety or function.
• Confer with contractors, utility companies, or government agencies to discuss plans, specifications, or work schedules.
• Present data, maps, or other information at construction-related public hearings or meetings.
• Prepare final project layout drawings that include details such as stress calculations.
• Investigate traffic problems and recommend methods to improve traffic flow or safety.

Tools & Technology

★ = Hot Technology (in-demand)

Education Requirements

Typical entry-level education: Bachelor's Degree

Related Careers

Careers with the highest skill compatibility from Transportation Engineers.

A Day in the Life

A transportation engineer's day might begin by reviewing design plans submitted by a subconsultant, checking that intersection geometry, sight distances, and lane widths meet AASHTO and local agency standards. Mid-morning could involve attending a public meeting to present a highway improvement project to community members and address concerns about access and noise. Afternoon hours are typically consumed by modeling work — running traffic microsimulation in tools like VISSIM or PTV Synchro to evaluate design alternatives — and drafting technical memoranda summarizing findings for agency reviewers. Engineers also attend coordination meetings with utility companies, environmental specialists, and right-of-way agents whose work intersects with the transportation design. End-of-day tasks often include reviewing and responding to plan review comments from state DOT engineers.

Work Environment

Transportation engineers work primarily in office settings — either at consulting firm offices or government agency facilities — where most design, analysis, and report production takes place. Field visits to project sites are a regular part of the job, including site assessments during planning and design phases and construction observation during project delivery. Public involvement activities, including community meetings and agency presentations, require strong communication skills and comfort with public-facing roles. The work follows project cycles that can include periods of intense deadline pressure during plan submissions and agency review cycles. Travel requirements vary significantly; engineers on large highway projects or those supporting multiple regional offices may travel frequently.

Career Path & Advancement

Most transportation engineers begin their careers as entry-level design engineers at consulting firms or state DOTs, working under the guidance of project engineers on highway and intersection design projects. Passing the Fundamentals of Engineering (FE) exam early in one's career and subsequently the Professional Engineer (PE) exam is a critical milestone for advancement in most transportation engineering roles. With several years of design and project experience, engineers advance to project engineer roles with responsibility for leading multidisciplinary project teams and managing client relationships. Senior engineers and project managers oversee complex, multi-phase transportation programs and mentor junior staff. Long-term career paths include division or district leadership at DOTs, technical practice leadership at engineering consultancies, or transition into transportation planning or policy roles.

Specializations

Highway design engineers focus on the geometric design of roads, interchanges, and intersections, applying standards from AASHTO's Green Book to ensure safe and efficient vehicle movement. Traffic operations engineers concentrate on signal design, access management, and intelligent transportation systems (ITS) that optimize the flow of vehicles through existing infrastructure. Pavement engineers specialize in the structural design and rehabilitation of road surfaces, applying materials science and life-cycle cost analysis to pavement selection decisions. Multimodal and complete streets specialists integrate bicycle, pedestrian, and transit facility design into roadway corridors, advancing equity and sustainability goals in surface transportation.

Pros & Cons

Industry Insight

Historic federal infrastructure investment through the Bipartisan Infrastructure Law has injected substantial funding into highway, bridge, and multimodal transportation programs, sustaining strong demand for transportation engineering talent for years to come. The profession is being transformed by advances in data analytics, automated vehicles, and mobility-as-a-service platforms, requiring engineers to design infrastructure that accommodates emerging mobility technologies. Environmental, social, and governance considerations — including climate resilience, equity, and greenhouse gas reduction — are now central design criteria that transportation engineers must address alongside traditional performance metrics. The aging state of American roadway and bridge infrastructure represents a massive backlog of rehabilitation and replacement work that will drive engineering demand well into the next decade. Competition for qualified transportation engineers remains intense, with retirements outpacing new entrants in many state DOTs.