Assessment of Bicycle Detection Confirmation and Countdown Devices

3:00 pm ET


  • Sirisha Kothuri, Portland State University
  • Dr. Chris Monsere, Portland State University
  • Dr. David Hurwitz, Oregon State University
  • Oliver Smith, Portland Bureau of Transportation
  • Gary Obery, Oregon Department of Transportation
  • Andrew Kading, City of Eugene

One of the key links in a bicycle network is signalized crossings of high volume and high-speed roadways. At these intersections in Oregon, cyclists are primarily detected by inductive loops. While vehicles are almost always detected automatically due to their size and predictable stopping location, that is not the case for bicycles. If a cyclist does not position themselves for detection, they may experience unnecessary delays, leading to a lower quality experience. There has been interest in the adoption of bicycle detection confirmation devices. These devices communicate to a user that have been detected and in case of countdown type devices, an estimate of the amount of waiting time. This presentation will present the findings of a study which examined alternate designs for bicycle detection feedback confirmation devices. The research used quantitative data from a video review and responses from surveys to study how the information provided by the confirmation and feedback device affects the overall cycling experience. 

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