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Safety Engineering Services

Jay W. Preston, CSP, PE, CMIOSH, President and CEO

Safety Engineer.......Accident Prevention Consulting.......Forensic Safety Engineering.......Accident Investigation.......Accident Reconstruction.......Safety Training.......College Safety Instruction.......Emergency Preparedness.......Safety and  Accident Prevention Expertise and Experience.....Expert Witness......

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Jay W. Preston, CEO

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Human Factors


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  • Call (310) 645-8789 for information.
  • Fax (310) 645-8788
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High-tech, substandard job-built ladderMuch work experience with the safety of walking and working surfaces, ladders, staging, stairways, ramps, sidewalks, and railings. In the course of my safety engineering activities for my industrial, contracting, and forensic clients, I conduct walkway and surface evaluations.

Member ASTM F-13  Committee on Safety of Footwear and Traction (1995-1996 and 2003)

Former Professional Member, International Conference of Building Officials

  • Test equipment includes:
    • Slipmeters:
      • Horizontal Pull (ASTM F-609 Standard Irvine)
      • Pendulum (NBS Standard Sigler)
      • Articulated Strut (NBS, ASTM Standard Brungraber Mark I, F-462, F-1677)
      • Variable Incidence Tribometer (EnglishXL Standard F-1679 VIT) Certified.
    •  Photometers:
      •  Minolta T-1
      •  Tektronix J-16
      •  General Electric T-14

I have conducted many coefficient of friction, slope, architectural barrier, and lighting surveys. I am familiar with the standard of care relating to floor maintenance procedures and protecting pedestrians from falling. I have been an apartment manager, am published in the apartment press, and have lectured on safety (including fall prevention) to apartment owner groups.

Investigated well over 500 slip, trip and fall occurrences in many kinds of occupancies, including residential, industrial, and retail environments.

Much background and experience in floor covering products and methods.  This includes carpets, linoleum, and tile of many types.  I have put it down, kicked it in, serviced it, and pulled it up.

Copyright 2000 - 2011, Jay W. Preston.  Distribution permission granted when this notice is printed in full.  For questions or comments: contact  The J-P, Plus Design and SAFETYBIZ. are registered service marks of Jay William Preston. Permission for use of specific Safety Subject Information is only granted when this notice is printed in full and Preston has been contacted by phone, fax, or email prior to use.