Long Delay Times Transitioning from Autonomous to Manual Driving
How long would it take to transition from autonomous to manual driving? Sooner or later, the need for that transition will happen due to hardware malfunctions, software bugs and cyber security breaches.
There are three driver simulation studies (1, 2, 3) demonstrating that transition times required a few tens of seconds for average drivers to regain full vehicle control.
According to Chris Schwarz, PhD, University Transportation Center, University of Iowa, “There is a 15 to 25 second gap between physical takeover and visual attention/stabilization during which the driver may be vulnerable to missing a safety-critical event at an inopportune moment.”
- Truck drivers: Suppose you are asleep in the cab berth while proceeding autonomously. How fast can you respond to an alert for resumption of manual driving?
- Insurance companies: During this transition period, who is liable if an accident occurs? The driver? The autonomous vehicle?
- Lawyers: To what extent is product liability determined in this case?
Pictured: A laboratory feasibility experiment using a laser to measure roadway friction between a tire and pavement. Project awarded by the National Highway Traffic Safety Administration to Dr. Everson.)