Traffic Engineering Intern

Fashion Institute of Design & Merchandising; Irvine (CA); On-site; USD 25,000 - 36,000; Part time

Job summary

HDR is seeking a Traffic Engineering Intern in Irvine, CA to assist with LOS analysis, traffic forecast modeling, and project data using GIS and AutoCAD. You’ll work on real highway and transit projects, recording field observations and supporting senior engineers to evaluate traffic performance and safety implications in a collaborative, employee-owned culture.

The ideal candidate is enrolled in Civil or Transportation Engineering, has strong problem-solving and communication skills, basic

Qualifications

• Currently enrolled in undergraduate or graduate Engineering program.
• Strong problem-solving and communication skills.
• Basic Microsoft Office skills.
• Local candidates with California internship experience preferred.

Responsibilities

• Conduct LOS analysis for intersections (Synchro).
• Assist with traffic forecast modeling.
• Complete projected figures using GIS and AutoCAD.
• Conduct parking studies to analyze potential impacts.
• Perform traffic impact analysis as part of CEQA/NEPA studies.
• Support intersection LOS analysis, trip generation estimates, and cumulative impact determinations.

Skills

Civil/Transportation Engineering

Traffic Engineering

Traffic operations

Simulation

Design

GIS

AutoCAD/MicroStation

Education

Engineering student (Undergrad/Grad)

Tools

Synchro/SimTraffic

HCM 2010

Caltrans standards

Microstation / AutoCAD

Vissim

Job description

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world? Watch Our Story: ' https://www.hdrinc.com/our-story' Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world. We believe transportation is more than movement, it’s the foundation of connected, thriving communities. As part of HDR’s Transportation Business Group, you’ll help shape the systems that move people and goods safely, efficiently, and sustainably. From designing resilient highways and iconic bridges to advancing transit, passenger and freight rail, aviation, federal transportation ports and marine infrastructure, your work will directly support economic vitality, public safety, sustainable and resilient communities and quality of life. We bring together planners, engineers, architects, construction management staff, environmental, strategic communications, economists, management consultants and specialists across disciplines to solve complex mobility challenges with innovation, technical excellence, and a deep understanding of community needs. Whether you're modernizing aging infrastructure or pioneering next-generation transportation solutions, your contributions will help define the future of mobility. This isn’t just a job, it’s a chance to lead progress, drive meaningful impact, and leave a legacy of smarter, more connected transportation networks. We are all employee-owners at HDR, which is the foundation of our collaborative culture that connects employees around the world.

In the role of Traffic Engineering Intern, we'll count on you to:

• Complete LOS analysis for selected intersections (Synchro)
• Assist with traffic forecast modeling
• Complete projected figures using Geographic Information Systems and AutoCad
• Conduct parking studies to analyze potential parking impacts to neighborhoods near the Project Area
• Conduct intersection and segment LOS analysis and project trip generation estimates
• Perform traffic impact analysis as part of a CEQA/NEPA level EIR or preliminary engineering study
• Conduct intersection LOS analysis, project trip generation estimates, and the determination of cumulative impacts

Conduct field work to record intersection and traffic signal design.

The ideal candidate will commit up to 20 hours per week on-site, working alongside and receiving mentorship from a licensed engineer. This position does not offer remote work.

Preferred Qualifications

• Field of Concentration – Civil and Transportation Engineering, Transportation Operational Analysis, Traffic Engineering Design, Environmental and Urban Planning.
• The candidate should have a focus on Traffic Engineering as a career including traffic operations, simulation and design.
• Basic understanding of traffic engineering concepts
• Graphics experience such as GIS or illustrator would be a plus
• Interest and experience is needed in knowledge of traffic design standards including signal, ITS, and signing and striping design with Microstation / AutoCAD software
• Knowledge/interest in Synchro / SimTraffic software, HCM 2010, HCS / Vissim software and Caltrans traffic design/operations analysis standards and procedure
• Attending an accredited Civil/Transportation Engineering program
• Prefer 1+years of classes in traffic analysis
• Strong preference will be given to local candidates who have intern experience in California before graduation

Required Qualifications

• Currently enrolled in an undergraduate or graduate Engineering program
• Possess strong problem-solving and communication skills
• Basic Microsoft Office skills
• An attitude and commitment to being an active participant of our employee-owned culture is a must

What We Believe

HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.

As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

Primary Location

United States-California-Irvine

Industry

Highway + Road

Schedule

Part-time

Employee Status

Temporary

BusinessClass : Traffic Engineering

Job Posting

Sep 25, 2026

At HDR, we are committed to the principles of employment equity.

We are an Affiant

We consider all qualified applicants, regardless of criminal histories, arrest and conviction records.