Steve Karamihas | Staff

Research Area Specialist Senior, Engineering Systems Group

University of Michigan Transportation Research Institute, Room 231, 2901 Baxter Rd. Ann Arbor, MI 48109

(734) 936-1057, fax (734) 647-3330


  • MS, Mechanical Engineering, University of Michigan, 1995
  • BS, Mechanical Engineering, University of Michigan, 1989

Research Interests

Mr. Karamihas has been heavily involved in the measurement and interpretation of longitudinal road profiles for 25 years. Mr. Karamihas has also conducted multiple studies of the factors that affect accuracy and repeatability of high-speed longitudinal road profile measurement. This has involved systematic study of the equipment, the manner in which it is operated, and special problems posed by the pavement itself, often culminating in recommendations that appear in AASHTO standards. This has also involved the conduct and execution of several profiler comparison experiments, including the largest ever conducted; application of many signal analysis methods to road profiles, including customization of cross correlation to profile comparison; and development of profiler performance criteria, including sole authorship of the Critical Profiler Accuracy Requirements report.

Mr. Karamihas has also collaborated with other UMTRI researches to design specialized profiling equipment, including the FHWA Urban and Low-Speed Profiler, the FHWA Benchmark Profiler, a custom profiler for study of height sensor footprint, and research systems for simultaneous measurement of profile and ride quality.



  • SAE Vehicle Dynamics Standards Committee (Chair 2008-2017) 2000-present
  • TRB Pavement Surface Properties and Vehicle Interaction Committee, 2003-2015
  • Road Profile Users’ Group Steering Committee (Chair 2012-2013), 2011-present
  • SAE Vehicle Performance Steering Committee, Chair 2014-present
  • NCHRP Technical Panel, Guidance to Predict and Mitigate Dynamic Hydroplaning on Roadways, 2014-present 
  • SAE Light Duty Vehicle Performance and Economy Measure Committee, 2018-present

Key Projects

  • Improving the Quality of Pavement Profile Measurement, FHWA, Western Federal Lands Highway Division
  • Measuring, Characterizing, and Reporting Pavement Roughness of Low-Speed and Urban Roads, National Cooperative Highway Research Program
  • Advancement of Profile-Based Curl-and-Warp Analysis Using LTPP Profile Data, Federal Highway Administration


  • Technical Achievement Award, Road Profile Users’ Group, 2015
  • Best Presentation Award, Road Profile Users’ Group Annual Meeting, 2012
  • Eno Fellow, Eno Transportation Leadership Development Foundation, 1993

Additional Information

ORCID 0000-0002-7480-3952