Description
Build, calibrate, and apply travel demand and traffic simulation models to evaluate transportation projects and policies. Gather, process, and analyze multimodal and land-use data; develop scenarios; generate forecasts and performance measures to support planning, design, and environmental review.
- • Develop, calibrate, and validate travel demand and traffic simulation models.
- • Build and maintain multimodal network and zone systems in modeling platforms.
- • Gather, clean, and integrate traffic counts, transit ridership, speeds, and GPS data.
- • Estimate and update origin-destination matrices from surveys and passive data.
- • Interpret and visualize model outputs using GIS and dashboards.
- • Conduct sensitivity, uncertainty, and diagnostic analyses on models.
- • Develop and document model assumptions, parameters, and procedures.
- • Automate modeling workflows using scripts (e.g., Python, R, SQL).
- • Collaborate with engineers and planners to resolve network or design issues revealed by models.
- • Evaluate development proposals and land-use changes using model-based impact analysis.
- • Support environmental review with traffic operations, emissions, and conformity modeling.
- • Prepare technical reports, appendices, and reproducible notebooks summarizing methods and results.
- • Establish and apply performance measures to compare alternatives.
- • Review and perform quality control on third-party modeling, methods, and datasets.
- • Maintain model versions, databases, and metadata under configuration control.
- • Participate in stakeholder and public meetings to explain modeling methods and findings.
- • Recommend system improvements based on modeled economic, population, land-use, and traffic projections.
- • Define model calibration targets and direct data collection to fill gaps.
- • Assess impacts of legislation or pricing policies using scenario modeling.
- • Design and analyze household travel, intercept, or stated-preference surveys for model inputs.
- • Code and test project alternatives, policies, and scenarios in models.
- • Produce forecasts of trips, volumes, speeds, and reliability by mode and time period.
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O*NET occupational data (work activities, skills, knowledge).
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Last reviewed: Jan 2026
