Virginia Department of Transportation On-Call Modeling Services
Corradino has converted the Virginia Department of Transportation's older models by using state-of-art tools for six metropolitan areas, Corradino also updated the statewide model, eveloped new mode choice, high-occupancy toll lanes and toll roads models. Corradino also helped VDOT finalize the Virginia Travel Demand Modeling Policies and Procedures Manual.
As the on-call consultant for VDOT, Corradino developed a travel demand model that accounts for the impact of managed lanes in the I-95 corridor of northern Virginia. This model allowed VDOT to conduct an independent evaluation of the Public / Private Partnership proposal to build the project managed-lanes in the corridor.
Extending the study area along I-95 from Fredericksburg to the Potomac River near Washington, DC., to encompass the planned managed lanes.
Developing a time-of-day modeling structure to provide submodels for the AM/PM peaks and off-peak time periods.
Developing a toll/free-route model to allocate vehicle trips to free and tolled travel paths on the basis of toll paid per minute saved.
Developing a dynamic model to estimate optimum toll rates. The objective was to maximize vehicle throughput.
Developing a sketch planning model to estimate the effect of the managed lanes on the Virginia Railway Express commuter rail rider-ship.
Virginia Department Of Transportation