Traffic Planning Intern

Job Description

Traffic Planning Intern – Summer 2026

Overview:

Colliers Engineering & Design is actively seeking a highly motivated intern to join our Traffic Planning Discipline for Summer 2026 in our Allentown, PA office. Colliers Engineering & Design, an affiliate of Colliers, is a trusted provider of multi-discipline engineering, design and consulting services to public and private sector clients. Headquartered in Holmdel, New Jersey with over 80 offices throughout the United States, we specialize in providing a comprehensive suite of services including: Civil/Site, Transportation, Buildings, Geospatial/Survey, Infrastructure, Governmental, Geotechnical/Environmental, Telecommunications and Utilities Engineering, Project Management, & Architecture. We employ over 3,000 talented professionals who utilize the most advanced technologies to deliver customized solutions for our clients.

Key Responsibilities:

• Assist technical staff with day-to-day design tasks for various types of transportation and traffic projects.
• Conduct traffic analysis responsibilities including data collection, crash analysis, and intersection & roadway capacity analysis utilizing various software, under the supervision of junior and senior level engineers.
• Perform traffic reporting duties including preparation of traffic impact studies as assigned by your management team.
• Execute CAD work for conceptual design plans from a traffic planning & preliminary design perspective.
• Contribute to cost estimating responsibilities for detailed design plans.
• Opportunity to advance to higher level responsibility depending upon performance throughout the summer.
• Collaborate with other interns to understand various disciplines and aspects of Colliers Engineering & Design.
• Participate in planning and technical report documentation.

In addition to the work-centered program, we also offer robust internship programming, which includes opportunities to work with other interns, learn about other areas of the business, and develop valuable communication skills and networking connections.

Qualifications:

• Currently pursuing a Bachelor’s or Master’s degree in Civil Engineering or a related program at an ABET-accredited University.
• Previous coursework in Traffic Planning, Traffic Design or Transportation preferred.
• Prior internship experience preferred but not required.
• Demonstrated interest in working on Traffic and Transportation related projects.
• Must have reliable transportation to the office.
• Basic understanding of AutoCAD and/or MicroStation preferred.
• Excellent written and verbal communication skills.
• Possess solid problem-solving skills.
• Must be able to work effectively in a high-paced environment.
• Strong computer literacy, to include MS Office.
• Ability to read, write and understand English for purposes of comprehending written job-related communications and verbal instructions and interactions.