Forskning vid University of California:
“This research provides evidence that hybrid cars, when operating in silent mode, pose a substantial risk to blind people and other pedestrians. We hope that regulators and car manufacturers will take notice of these results and take steps to eliminate this risk,” said Dr. Marc Maurer, president of the National Federation of the Blind, a 50,000-member advocacy organization for people who are blind or have low vision.
Norwich Union Risk Services:
[Dr Guy Walker] added: "Cars provide timely 'informal chatter', such as engine noise and road noise, which keeps us attentive and informed of our situation on the road. If this feedback is removed through car design innovations, the whole nature of driving could change completely, potentially putting lives at risk."