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Innovative Intersection Safety Improvement Strategies and Management Practices: A Domestic Scan

Appendix A: Team Members


Eugene C. Calvert, P.E.
Principal Project Manager,
Transportation Engineering & Construction Management Department
Collier County Transportation Services Division
2685 Horseshoe Drive South, Suite 212
Naples, FL 34104
Phone: (239) 774-8192
Fax: (239) 213-5885
Email: eugenecalvert@colliergov.net

Debra M. Chappell, MCE
Highway Safety Engineer, Office of Safety Design
Federal Highway Administration
400 Seventh Street, SW
HSA-10, Room 3407
Washington, DC 20590
Phone: (202) 366-0087
Fax: (202) 366-2249
Email: debra.chappell@dot.gov

Shyuan-Ren S. (Clayton) Chen, Ph.D., P.E., PTOE
Highway Safety Engineer, Office of Safety Design
Federal Highway Administration
400 Seventh Street, SW
HSA-10, Room 3407
Washington, DC 20590
Phone: (202) 366-4656
Fax: (202) 366-2249
Email: clayton.chen@dot.gov

Douglas W. Harwood, P.E.,
Transportation Section Manager
Midwest Research Institute
425 Volker Boulevard
Kansas City, MO 64110-2299
Phone: (816) 753-7600 ext. 1571
Fax: (816) 561-6557
Email: dharwood@mriresearch.org

Loren Hill, P.E.
State Traffic Safety Engineer
Minnesota Department of Transportation
Office of Traffic, Security & Operations, Mail Stop 725
1500 W County Rd, B-2
Roseville, MN 55113
Phone: (651) 634-5100
Fax: (651) 205-4526
Email: loren.hill@dot.state.mn.us

Warren E, Hughes, P.E., PTOE
Principal, Vanasse Hangen Brustlin, Incorporated
8300 Boone Boulevard, Suite 700
Vienna, VA 22182
Phone: (703) 847-3071
Fax: (703) 847-0298
Email: whughes@vhb.com

Stanley F. Polanis
Director of Transportation
City of Winston-Salem Department of Transportation
P.O. Box 2511
Winston-Salem, NC 27102
Phone: (336) 727-2707
Fax: (336) 748-3370
Email: stanp@cityofws.org

Jennifer D. Weigle
Marketing Coordinator
Vanasse Hangen Brustlin, Incorporated
8300 Boone Boulevard, Suite 700
Vienna, VA 22182
Phone: (703) 847-3071
Fax: (703) 847-0298


Debra M. (Dee) Chappell, MCE, is a Highway Engineer of the Office of Safety Design, and has more than 20 years experience in transportation with local, state, federal and private entities. She has also worked with FHWA’s Office of Operations on activities that included highway-rail grade crossing issues, accessibility issues, and the National Dialogue on Transportation Operations (the predecessor to the National Transportation Operations Coalition). Prior to her tenure with FHWA, she was a Project Engineer in the Accident Prevention Division of the Volpe National Transportation System Center in Cambridge, MA. She graduated with honors with a BSCE from the Florida A&M University/Florida State University College of Engineering and received her Master of Civil Engineering from Howard University.

Shyuan-Ren (Clayton) Chen, Ph.D, is a Highway Traffic Engineer of the Office of Safety Programs for the Federal Highway Administration in Washington, D.C. His emphasis includes developing FHWA’s safety program in geometric design, intersection/interchange safety, intersection roadmap, and supporting road safety audit, access management, pavement safety policy, and cooperative intersection collision avoidance systems programs. Chen has a Ph.D. degree major in Transportation and Urban Engineering from the University of Connecticut. He is a licensed professional engineer in Virginia and a certified professional traffic operations engineer.

Warren E, Hughes, P.E., PTOE, is a Principal of BMI-SG; a VHB company affiliated with Vanasse-Hangen-Brustlin, Inc, in their Vienna, VA, office. He has been continuously active in highway safety research projects since 1981. In addition, he has extensive experience in traffic engineering, traffic signal design and modification projects, traffic operations analyses, transportation corridor improvement studies, highway location and design projects, transportation planning studies, intersection design projects, crash analyses, and traffic simulation. He graduated magna cum laude with a BSCE from the University of Notre Dame and received his MSCE from the University of Maryland.

Eugene Calvert, P.E., PTOE, is the Interim Director of the Transportation Engineering & Construction Management Department for the Collier County Transportation Services Division in Naples, Florida. Mr. Calvert is responsible for the administration and project management of the capital road and bridge improvement program for the Collier County. He has been involved in the construction and management of highway improvement projects on the local level for 27 years. Mr. Calvert is an active member of the National Association of County Engineers (NACE) and has been affiliated with the National Local Technical Assistance Program (LTAP). Mr. Calvert holds a bachelor’s and a master’s degree in civil engineering from the University of Wyoming. He is the recipient of the Eldon J. Yoder Award for the Transportation Research Board (TRB) Eighth International Conference on Low-Volume Roads and a recipient of the California Transportation Foundation TRANNY Award for the Outstanding Highway Management Program for 2003. He is a licensed professional engineer in four states and a registered land surveyor in two. Mr. Calvert is a certified Professional Traffic Operations Engineer (PTOE) and is an active committee member of TRB.

Douglas W. Harwood, P.E., manages the transportation engineering section of the Applied Engineering Division at Midwest Research Institute in Kansas City, Missouri. Mr. Harwood has more than 30 years of research experience for federal, state and local agencies, and he has served as principal investigator of numerous FHWA and NCHRP research projects concerning traffic safety, highway geometric design, and traffic operations. He has had a key role in the development of guides to assist highway agencies in implementing the AASHTO Strategic Highway Safety Plan; in particular, he was the lead author of a guide on improving safety at unsignalized intersections that has been published in the NCHRP Report 500 series. He is a civil engineering graduate of Clarkson College and has a master’s degree in transportation engineering from Purdue University in Indiana. He is a licensed professional engineer in Missouri and Montana. Harwood is also a member of the Transportation Research Board’s Task Force on the Development of the Highway Safety Manual and, until recently, served as chair of the TRB Committee on Operational Effects of Geometrics.

Loren Hill, P.E., began his career at the Minnesota Department of Transportation (Mn/DOT) in 1973. He is the Mendota State Traffic Safety Engineer. His unit is responsible for crash analysis and speed limit issues statewide. He was the project manager of the Minnesota Comprehensive Highway Safety Plan (CHSP). Hill is a graduate of the University of Minnesota, with postgraduate work at University of Texas and at the University of Nevada-Reno. He is a licensed engineer in Minnesota. He has been a member of the expert panel on the Model Minimum Uniform Crash Criteria Guideline manual, was involved in the safety analyst development, and was a panel member on the NCHRP Report 500 series.

Stanley F. Polanis began his transportation career as a Human Factors Researcher with the Highway Safety Foundation in 1971. He worked for the Pennsylvania Department of Transportation from 1974 through 1979. In late 1979 he joined the City of Winston-Salem’s Traffic Engineering staff and was named Assistant Director of Transportation in 1993 and Director of Transportation in December of 2002. As Director, he is responsible for management of a transportation department with more than an $11 million budget that includes 65 employees and is the lead planning agency for the Winston-Salem Urban Area Metropolitan Planning Organization (MPO). The Department also oversees the Winston-Salem Transit Authority. Mr. Polanis received his undergraduate degree from Ashland College in Ohio and is a 1976 graduate of the Bureau of Highway Traffic at Pennsylvania State. He is a member of Institute of Transportation Engineers (ITE), the Transportation Research Board (TRB) and the International Parking Institute. Mr. Polanis has published papers dealing with traffic safety and authored the ITE’s Traffic Safety Toolbox. He has also authored papers on parking issues and traffic signal timing and fuel economy.

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