Warning Design and Evaluations

Using our participatory process for warning development, we examine hazards and risk perceptions, warning message format and content, and test their effectiveness by eliciting feedback from human participants.  

We have published research and writings on hazard communications and warnings in scientific publications.  We have experience designing custom warnings for corporate clients.  We are intimately familiar with the American and international regulations and standards of care for warning design and delivery, including the American National Standards Institute’s Z535 series and ISO 3864. 

Harvey Cohen currently serves as the alternate representative of the Human Factors and Ergonomics Society to the American National Standards Institute Z535 committee.




San Diego: (619) 464-4427

New Publications

Cohen, H.H., & Sloan, G.D. (2016). The science behind codes and standards for safe pedestrian walkways: Lighting and visual cues. Applied Ergonomics52, 112-119.

Cohen, H.H., & Cohen, J. (in press). Fall forensics: principles and applications. In Hsiao (Ed.) Fall Prevention and Protection: Principles, Guidelines, and Practices. CRC Press; Boca Raton, FL.

Bakken, G.M., Cohen, H.H., & Cohen, J. (in development - due in 2016). Slips, Trips, Missteps and Their Consequences (Third Edition). Tucson, AZ: Lawyers & Judges Publishing Company, Inc.



01 Joseph Cohen named associate editor of Ergonomics in Design by Sage Publications.

02 Harvey Cohen named Director of the Foundation for Professional Ergonomics, a non-profit organization dedicated to advancing professionalism in ergonomics through educational activities and awards.

03 Joseph Cohen elected President of the Board of Certification in Professional Ergonomics