When Mark Rosenberg showed some Swedish friends a photo of where he’d found a runner who’d been hit by a car, they exclaimed, Your streets are designed to kill people!
They said that the thin painted white lines at the intersection could not be seen at dawn, nor was there a raised bump to or a narrowing of the road to demarcate the intersection and slow down traffic. They said the speed limit should be 30 kilometers per hour (about 18.6 miles per hour) or less if we wanted pedestrians to have much of a chance of surviving. They also said traffic lights increased the number of deaths because people often speed up when the light turns yellow.When Sweden removed red lights from intersections and replaced them with traffic circles or rotaries, death rates at these intersections fell by 80 to 90 percent.
Sweden has also adopted a philosophy called Vision Zero, believing it can eradicate road traffic deaths.
Vision Zero started about 30 years ago, when traffic safety researcher Claes Tingvall got the idea that we didn’t have to accept road traffic deaths as a fact of life. Tingvall and his colleagues said that these deaths were not “accidents’’ but were predictable and preventable. And they set out to prove it.
One of the ways they began to protect people was to put barriers down the center of two-lane roads. They showed that this could be done cheaply. When Mylar – a strong polyester film – is supported by closely spaced plastic poles, it can keep cars from crossing the median. When the Swedes used this type of center barrier to separate the traffic going in opposite directions, they effectively prevented head-on collisions and the death rate on these roads fell by 70 percent to 80 percent.