David Ungemah offers fourteen years of experience in transportation planning, with particular emphases in High Occupancy Vehicle (HOV) systems, High Occupancy Toll (HOT) and managed lanes policy and facility development, roadway pricing and tolling analysis, Transportation Demand Management (TDM) technical analysis, transportation outreach and marketing, and alternative transportation development. His work has included alternatives analysis for major transportation investments and policies, facilitated strategic planning processes for market-based transportation policy programs, coordinated various municipal and corridor plans and priorities in transportation improvements, and conducted professional and citizen outreach efforts for transportation policy development.

David served as a project manager and senior adviser to the Colorado Department of Transportation (CDOT) for the development and implementation pursuit of the I-25 HOT Lane project, an HOV-to-HOT adaptation project. Research and consultant activities conducted by David in this process included investigating existing HOT lane and Express Toll Lane (ETL) implementation projects, policy development, facility design, public outreach and assessment, and toll systems coordination. David also was the deputy project manager for the Boulder Congestion Relief Program, one of the first areawide pricing studies conducted under a grant from the FHWA Congestion Pricing Pilot Program.

While at the Texas Transportation Institute (TTI), David led the Tolling and Pricing evaluation for the National Evaluation of the Federal Urban Partnership Agreement program. David additionally provided research and expertise in congestion pricing and managed lanes for the New York State Department of Transportation, Washington State Department of Transportation and the Dallas, Tyler, and Austin Districts of the Texas Department of Transportation. David provided targeted research and consulted for the Federal Highway Administration, Harris County Toll Road Authority, Colorado Department of Transportation, Minnesota Department of Transportation, Houston-Galveston Area Council, Denver Regional Council of Governments, and the Southern California Association for Governments on managed lane projects, including general feasibility analysis, public acceptance assessments, and policy guidance. For HOV systems, David has been involved in the analysis of incident management procedures on HOV lanes in Texas, the development of technical guidance sections and outreach materials for the HOV Pooled Fund Study, and a study of the appropriate level of incentives offered to high occupancy vehicles in managed lane facilities.

Since May 2009, David has consulted from Parsons Brinckerhoff's (PB) Austin office. He has assisted the Metropolitan Transportation Commission of the San Francisco Bay Area with an extensive Express Lane network, including development of the Concept of Operations for the regional network.  He has also conducted managed lanes and active traffic management analysis for the Minnesota Department of Transportation's I-94 Managed Lanes Study.

Prior to PB and TTI, David was a founding principal in UrbanTrans Consultants, Inc.

David is a member of the Transportation Research Board’s TDM and Congestion Pricing Committees; chair of the Multimodal Implementation of Pricing subcommittee of TRB; participant in the TRB Joint Subcommittees on Managed Lanes and Public Outreach in Congestion Pricing; Director for the Association for Commuter Transportation; and an ENO Foundation Transportation Leadership Fellow.