Cars vs Motorcycle Response Times and Braking Rates?

Topics related to Vehicle Specifications, Vehicle Acceleration Tests, Vehicle Braking Tests
MSI
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Cars vs Motorcycle Response Times and Braking Rates?

Post by MSI »

From the Facebook NAPARS page (and be sure to support NAPARS, JOIN!):
  • Today: When operating in the real world with multiple issues requiring attention, average riders and drivers have often shown an inability to generate the
    kind of big braking rates we would expect when asked to "stop as rapidly as you safely can".
    • 0.55g in a car,
    • 0.44g on a decent sportbike.
    And this was a group of mostly highly skilled riders (many MSF instructors).
    This testing looms large when we ask "What should that operator have been capable of when braking to avoid a crash?"
driver rider PRT.jpg
driver rider PRT.jpg (58.89 KiB) Viewed 4225 times
Here's a link to the reference INFLUENCE OF RIDING EXPERIENCE ON GLANCE BEHAVIOR, BRAKE RESPONSE
TIME AND DECELERATION RATES BY DRIVERS AND MOTORCYCLISTS
Summary:
  • The focus of the research was to address the crash avoidance behaviors of drivers versus motorcyclists. Avoidance tasks include, attention maintenance and hazard anticipation measured with glance behaviors, and hazard mitigation measured with response times and deceleration. Specifically, where might the driver behavior be similar or different than that of a motorcyclist? The performances of 23participants were analyzed while they drove a car and rode a motorcycle over the same low-volume, open roads. Participants wore eye-tracking equipment used to record eye-glance information while the motorcycle and car were instrumented with an on-board accelerometer and GPS apparatus. Operators
    also responded by braking quickly to a stop when an LED, mounted in front of them, was illuminated. Motorcyclists spent less time glancing toward the road ahead and made fewer last-glances toward the direction of most threatening traffic before turning when riding the motorcycle, as opposed to when driving a car. Additionally, motorcyclists’ response times were similar to those when driving, yet motorcyclists decelerated less sharply compared to drivers. These results suggest that riders may be exposing themselves to unnecessary risk. Specifically, motorcyclists frequently failed to make proper glances and practice optimal riding techniques. The implication of these results relative to a training curriculum is discussed.