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Job Summary

The Principal Transport Engineer will be responsible for delivering and managing transport planning and traffic engineering studies across a range of infrastructure, development, and masterplanning projects. The role requires strong technical capability, project delivery experience, and the ability to coordinate with clients, authorities, multidisciplinary teams, and junior staff.

The Principal Transport Engineer will contribute to the development of technical solutions, manage day-to-day project activities, review technical outputs, and support Project Managers and Technical Leads in delivering projects to a high professional standard.

Key Responsibilities

• Lead and undertake transport planning and traffic engineering studies for development, infrastructure, and masterplanning projects.
• Prepare and review Traffic Impact Studies (TIS), Transport Assessments, mobility studies, access and circulation assessments, and traffic management assessments.
• Undertake traffic analysis, junction capacity assessments, network assessments, trip generation, trip distribution, mode share, parking demand, and transport demand assessments.
• Develop and review transport planning assumptions, methodologies, technical reports, calculations, and supporting documentation.
• Support strategic and detailed transport modelling activities, including preparation of model inputs, review of model outputs, and interpretation of results.
• Assess the impact of proposed developments and infrastructure schemes on surrounding transport networks.
• Develop practical and technically sound recommendations to address identified transport issues.
• Ensure technical work complies with relevant design standards, guidelines, project requirements, and authority requirements.
• Manage day-to-day technical activities and deliverables for assigned projects, ensuring work is completed within agreed programme, budget, and quality requirements.
• Coordinate inputs from multidisciplinary teams, including highways, urban planning, infrastructure, rail, public transport, and other technical disciplines.
• Monitor project progress and identify technical, programme, resource, and delivery risks.
• Support Project Managers and Technical Leads in managing project scope, deliverables, and client requirements.
• Assist with fee proposals, scopes of work, resource planning, and technical approaches for new opportunities.
• Liaise directly with clients, government authorities, developers, and other stakeholders.
• Attend technical meetings and workshops and present transport findings and recommendations.
• Coordinate with relevant transport authorities and respond to technical comments and review requirements.
• Build and maintain effective professional relationships with clients and stakeholders.
• Represent the company professionally during project and authority meetings.

• Bachelor's degree in Transport Planning, Geography, Civil Engineering, Economics, or a closely related discipline
• Chartered status or professional membership with a recognized body such as CIHT (Chartered Institution of Highways & Transportation), TPS (Transport Planning Society), or ICE (Institution of Civil Engineers)
• Extensive experience (typically 12+ years) in transport planning, with demonstrated expertise in scheme appraisal, evaluation, and business case development
• Proven track record of successfully delivering multi-disciplinary transport planning projects in compliance with DfT and Treasury guidance
• Advanced proficiency in analytical techniques and industry-standard transport modeling software and tools
• Strong project management and resource management capabilities, with evidence of sound commercial awareness and proven management techniques
• Excellent communication and presentation skills, with the ability to engage confidently with senior-level stakeholders and clients
• Demonstrated experience in client relationship management and business development within the transport planning sector
• Strategic thinking ability with experience in transport policy, strategy formulation, and long-term planning initiatives
• Proven mentoring and team leadership experience, with the ability to develop junior staff and foster collaborative working environments

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community - where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.