During the last six months Stockholm tested a sophisticated traffic-management system designed to ease congestion, cut pollution and improve the quality of life in the city, according to a story in Tuesday’s Wall Street Journal (subscription required). It’s a model that could easily be implemented in Seattle, which has a central area that’s roughly the same size and has similar geographic chokepoints for traffic.
The Swedish city used a congestion-pricing system that charges drivers different amounts depending on the time of day. A windshield-mounted transponder automatically deducts the tolls from the driver’s bank account every time the car passes through a checkpoint. Since the tolls rise or fall depending on congestion, drivers adjust their habits. The result is more space for bicycles, pedestrians and buses, and less time for thousands of cars to spew exhaust while stuck in traffic.
A similar system would fit well with the Seattle’s stated goal of making the city friendlier for travel by bicycle. Stockholm ran the test and plans a referendum to decide whether to keep it. A yes vote would sustain public support better than any plan imposed by a bureaucracy would.
Similar congestion-pricing programs have been discussed in Cascadia, where gridlock is likely to spread even if residents heavily tax themselves to pay for mass transit and road projects. The Puget Sound Regional Council years ago won a federal grant for a pilot project that would use car GPS to assess tolls on some roads. But it’s unclear how that project paid off or might be more widely implemented.