How can we trust Metro’s model to predict the future, when it can’t even match the present? Metro’s Kate travel demand model, used to plan the $7.5 billion Interstate Bridge, includes 25,000 phantom cars per day in its base year…
Traffic modeling is guided by a series of professional and administrative guidelines. In the case of the proposed $7.5 Interstate Bridge Replacement Project, IBR and Metro modelers did not follow or violated these guidelines in many ways as they prepared…
To hear project officials tell it, traffic projections emerge from the immaculate and objective Metro “Kate” traffic model But in reality, IBR traffic projections are not the outputs of the Kate travel demand model. Instead, IBR consultants have altered the…
The $7.5 billion plan to widen the I-5 bridges across the Columbia River is being sold, in part, based on claims that it will be used by millions of phantom trucks. Metro’s biased truck modeling over-states current I-5 truck traffic…
The Interstate Bridge Project proposes spending $7.5 billion to widen I-5, but misses the real bottleneck. A new, independent analysis by national traffic expert Norm Marshall of Smart Mobility, Inc., shows that the proposed IBR project fails to fix the…