Professional Synopsis:
D. Scot Leftwich, President and co-founder of Leftwich Consulting Engineers, Inc. has over 35 years of traffic and transportation engineering experience, including planning, design, and construction. This experience includes the publication of over 25 documents, presentation of workshops, research projects, and traffic, transportation and construction related courses at a local university. While working for the North Carolina Department of Transportation in Raleigh (1974 to 1982), he prepared thoroughfare plans for numerous urban areas. These plans consisted of detailed modeling of existing and future traffic, including alternative routes of proposed arterials, collectors, and expressways. Analysis also included implementation studies and financial analyses.
Dr. Leftwich has been responsible for over 950 projects and attended over 2000 transportation related meetings since 1986. Validation/Calibration of macro, micro, truck, and transit transportation models is his expertise. He has calibrated over 30 macro models in Florida, North Carolina, and Alabama. Some of the models calibrated include District 1 and District 5, OUATS, Lake, Volusia, Monroe, and Flagler Counties, and the Cities of Winter Haven, Sanford, St. Cloud, and Daytona Beach as well as a six-county model in West Florida. Recent efforts include a micro-simulation for model for the Miami Downtown Transportation Master Plan (MDTMP) using PARAMICS. This model was developed by Leftwich Consulting Engineers, Inc. under the direction of Dr. Leftwich and is the largest PARAMICS micro-simulation model in the world. Current projects include The Fountains DRI in Lee County, the Vavrus DRI in Palm Beach County, and a Long Range Transportation Plan for east Osceola County. Dr. Leftwich has worked on over 100 DRI’s and is presently working on 20 plus DRI’s in the State of Florida.
Education:
Ph.D. Civil Engineering Transportation
North Carolina State University, 1982M.C.E. Transportation
North Carolina State University, 1974B.S.C.E. Engineering
North Carolina State University, 1973
Professional Registrations:
P.E. NCEES No. 29025
P.E. Florida No. 32907
P.E. North Carolina No. 7924
P.E. Colorado No. 39206
P.E. Georgia No. 30744
P.E. Tennessee No. 00111000
P.E. Wisconsin No. 38499-006
P.E. South Carolina No. 25287
P.E. Connecticut No. 25619
Professional Activities:
American Society of Civil Engineers
National Society of Professional Engineers
Institute of Transportation Engineers
American Society of Highway Engineer
Areas of Expertise:
Multi-Modal Transportation Planning (HOV, Transit, Rail, etc…)
Transit Planning
Transportation Systems Modeling (Validation)
Comprehensive Planning Analysis
Developments of Regional Impact (DRI)
Traffic Impact Analysis
Traffic Impact Fee Studies
Transportation Corridor Studies
Concurrency Analysis
Traffic Signal Design and Timing
Interchange Justification/Modification Reports (IJR/IMR)
Expert Witness
ISTEA
Hurricane Evacuation
Financial Analysis
Micro-Simulation (CORSIM, Paramics) Analysis
Truck Modeling
