Transport Modeller

We are looking for a Transport Modeller with 5 years of hands-on experience in PTV Visum to develop calibrate and apply strategic travel demand models. The role supports traffic forecasting public transport ridership estimation and transport infrastructure appraisal for highways urban mobility metro/MRTS and feasibility studies.

Key Responsibilities

Build and update multi-modal transport models in PTV Visum: network coding zoning systems connectors link types volume-delay functions (VDF/BPR) turn penalties and junction capacity.
Run the four-stage model (trip generation trip distribution mode choice traffic assignment) for base and horizon years.
Develop and calibrate OD matrices including matrix estimation (TFlowFuzzy) from classified volume counts and OD surveys.
Carry out private transport assignment (equilibrium equilibrium Lohse ICA) and public transport assignment (timetable-based headway-based) for ridership estimation.
Calibrate and validate models against observed data using GEH statistic screenline and R² checks per DMRB/TAG/IRC standards.
Run scenario testing and forecasting: network improvements land-use changes tolling route rationalisation and demand growth.
Use Procedure Sequence Python/COM scripting and VBA to automate model runs and outputs.
Extract and prepare outputs: PCU volumes V/C ratios Level of Service (LoS) travel time savings VKT/VHT select-link and select-zone analysis flow bundles.
Supply model inputs for economic appraisal (cost-benefit analysis EIRR/FIRR HDM-4) and toll revenue / traffic studies.
Analyse traffic survey data: CVC OD TMC speed-delay parking and household surveys.
Write model development reports (MDR) forecasting reports and presentations for clients and approving authorities.
Coordinate with microsimulation teams (PTV Vissim) on demand inputs and junction-level studies.

Qualifications :

• / M.E. / . in Transportation Engineering Transport Planning or Urban Planning ( Civil with relevant experience considered).
• 5 years of transport modelling experience with strong command of PTV Visum.
• Sound understanding of travel demand modelling theory: gravity models logit/nested logit mode choice assignment algorithms.
• Experience on at least some of: highway/expressway feasibility (DPR) Comprehensive Mobility Plans (CMP) metro/BRT/MRTS ridership Traffic Impact Assessment (TIA) toll plaza studies.
• Working knowledge of IRC codes MoRTH/NHAI guidelines and international standards (WebTAG/TAG DMRB).
• Strong Excel GIS (QGIS/ArcGIS) and data-handling skills; Python preferred.
• Clear technical writing and client-facing presentation skills.

Additional Information :

Exposure to PTV Vissim CUBE EMME TransCAD or SATURN.
Experience with activity-based models land usetransport interaction (LUTI) or big data (GPS mobile/app data smart-card data).
Experience mentoring junior modellers and reviewing model QA/QC.

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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 . 

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 youll 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 youve always envisioned. Here youll 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. 

Remote Work :

No

Employment Type :

Full-time