The UK's Transport Research Laboratory is exploring ways to create the illusion of danger on roads in an effort to slow speeders. According to lead researcher Janet Kennedy, simple things such as removing central white lines have already proven successful in psyching out drivers:
"Perceptual techniques which make the environment seem more complex or less safe have the potential for success. Natural traffic calming, such as narrow or winding roads, can be very effective as well as being more acceptable to drivers. Carefully-designed schemes, using the properties of natural traffic calming, have the potential to achieve a similar effect."
