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Workshop: Proactive Tools and Treatments to Address Roadway Safety

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Today's sessions are sponsored by Crashes happen. According to the Federal Highway Administration, nearly 45% of injury crashes occur at intersections and nearly every agency struggles to stay abreast of ever evolving safety risks. Amidst these challenges, proactive safety tools have emerged which promise to change how agencies across America and the world respond to crashes at intersections by providing a proactive and data driven method to reduce crashes while avoiding the delays and inaccuracies inherent in crash data.
This workshop covered:

  • Understanding safety analytics: data collection that captures near misses & behavioral causal factors
  • How safety analytics are used by agencies across the country, including case studies
  • Using proactive safety analytics to select countermeasures which address the “real” safety issues and not just the symptoms
  • Supplementing crash data with safety analytics to provide a complete picture for informed decision making

Learning Objectives:
  • Know what safety analytics are and how they can be used at intersections
  • Learn how to identify safety risks using video safety analytics, refine countermeasures to address the root issue, and quantifiably measure before/after risk
  • Understand how to combine near miss and road user behavior analytics with traditional crash metrics for proactive safety planning
Facilitators and Speakers:
  • Andrew Janzen (Chief Executive Officer, Street Simplified) - Using video safety analytics to save lives
  • Brian Chandler (National Director for Transportation Safety, DKS Associates) - Combining crash data and safety analytics for predictive safety decision making
  • Shaun Quayle (Senior Transportation Engineer, Washington County, OR) - An agency perspective on proactive, automated safety tools and outcome treatments
  • Steve Lavrenz (Professor, Wayne State University) - Forging the link between near misses and other surrogate safety measures


  • Shaun Quayle (Senior Transportation Engineer, Washington County, OR)

    Shaun Quayle, P.E. is a traffic engineer with Washington County, Oregon. He specializes in traffic signal systems and intelligent transportation systems. He enjoys developing and implementing innovative treatments that bear meaningful mobility and safety outcomes for all modes. Shaun is a graduate of Oregon State University and University of Tennessee, thus his favorite color is orange.

  • Brian Chandler (National Director for Transportation Safety, DKS Associates)

    Brian Chandler is the National Director for Transportation Safety at DKS Associates in Seattle, Washington. He brings real-world experience in roadway safety planning, traffic operations, safety management, and data analysis, including a combination of leadership positions in government and the private sector. Brian spends each day seeking new and innovative ways to save lives.

  • Andrew Janzen (Chief Executive Officer, Street Simplified)

    Andrew Janzen is the CEO of Street Simplified, a proactive safety analytics provider that uses computer vision technology to improve intersection safety and efficiency. Andrew received a Master’s in Electrical Engineering with honors from California Institute of Technology in 2016 and subsequently worked on microwave and optical space communications at NASA's Jet Propulsion Laboratory before co-founding Street Simplified. Andrew has leveraged his expertise as an intersection safety specialist to help agencies across America diagnose and solve safety problems at over 100 locations. When not working Andrew enjoys spending time with his wife Zeleen and 6-month-old daughter Emerald.

  • Steve Lavrenz, Ph.D.

    Dr. Steven Lavrenz is an assistant professor with the Transportation Research Group at Wayne State University in Detroit, MI. He has extensive experience in traffic operations and non-motorized transportation safety and mobility, serving as author or co-author on more than 18 peer-reviewed journal publications. In addition to developing the RSP Level 1 Refresher Course, he regularly engages federal, state, and local professionals around the country on the subjects such as connected and automated vehicles, Complete Streets and context sensitive design, traffic incident management, and performance management. Dr. Lavrenz received B.S. and M.S. degrees in Civil Engineering from Iowa State University, and a Ph.D. in Civil Engineering from Purdue University.

July 28, 2021
Wed 4:00 PM EDT

Duration 2H 0M

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