Posted on Friday, July 8, 2005 - 12:19 pm:

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Monderman and I are tooling around the rural two-lane roads of northern Holland, where he works as a road designer. He wants to show me a favorite intersection he designed. It's a busy junction that doesn't contain a single traffic signal, road sign, or directional marker, an approach that turns eight decades of traditional traffic thinking on its head.

Wearing a striped tie and crisp blue blazer with shiny gold buttons, Monderman looks like the sort of stout, reliable fellow you'd see on a package of pipe tobacco. He's worked as a civil engineer and traffic specialist for more than 30 years and, for a time, ran his own driving school. Droll and reserved, he's easy to underestimate - but his ideas on road design, safety, and city planning are being adopted from Scandinavia to the Sunshine State.

Riding in his green Saab, we glide into Drachten, a 17th-century village that has grown into a bustling town of more than 40,000. We pass by the performing arts center, and suddenly, there it is: the Intersection. It's the confluence of two busy two-lane roads that handle 20,000 cars a day, plus thousands of bicyclists and pedestrians. Several years ago, Monderman ripped out all the traditional instruments used by traffic engineers to influence driver behavior - traffic lights, road markings, and some pedestrian crossings - and in their place created a roundabout, or traffic circle. The circle is remarkable for what it doesn't contain: signs or signals telling drivers how fast to go, who has the right-of-way, or how to behave. There are no lane markers or curbs separating street and sidewalk, so it's unclear exactly where the car zone ends and the pedestrian zone begins. To an approaching driver, the intersection is utterly ambiguous - and that's the point.

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