Vancouver planner Jeffrey Patterson sends along a media release from the Congress for the New Urbanism, which has decided to weigh in on Seattle’s Alaskan Way Viaduct controversy. Or more particularly, on the flaws in the analysis done by the Washington State Department of Transportation (WSDOT):
… WSDOT holds up its computer models like “the Wizard of Oz, saying the model says this, and we must accept it.” But in truth, WSDOT has adjusted the models with inflated traffic to fit their “mental models.”
WSDOT calls this practice “conservative,” but the authors note “this suggests that only the risk of building too little capacity is considered, and not the risk of purchasing too much capacity at an extravagant cost.”
You can get Smart Mobility’s whole report here, and WSDOT’s report here.
There are substantial differences between Alaskan Way and the Gateway Project, but when it comes to models and analyses, there’s one fundamental similarity: the reports produced to justify the billions to be spent use many of the same devices to come to the same pre-determined conclusions. The analyses done for Gateway, particularly with respect to transit and land-use, are almost embarrassing in their superficial brevity. So here’s an even briefer summary:
Yesterday’s solutions at tomorrow’s prices.












