Under general supervision, gathers, compiles and analyzes transportation demographic, economic, land use and/or environmental data including traffic counters, flow data, etc. to create basic to moderate complexity modeling for existing and proposed transportation systems (roads; bridges; highways; tunnels; tolls; transit; rail; freight; aviation; bike/ped.; etc.). Reviews existing models and recommends improvements/changes as necessary. Leverages transportation systems, models, simulations and data to prepare basic to moderate complexity studies of existing or proposed transportation system including: new systems; upgrades or updates to existing systems; re-routing of systems; reviews of existing systems; etc. Creates transportation surveys, exhibits, and other meeting materials as necessary, to identify areas of public concern and facilitate public and stakeholder input. Leads and performs traffic count and safety studies. Reviews proposed transportation project sites for alignment with draft designs and plans. Reviews transportation plans for compliance/consistency with applicable local, state and federal laws. Escalates any legal compliance issues as necessary. Performs other duties as required. Collaborates with engineers to research, analyze or resolve transportation conceptual/schematic design issues.