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
IBR traffic modeling violates professional standards and federal rules Read Post »
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,
Cooking the Books: How IBR used “Post-Processing” to alter the Metro Model Read Post »
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
Inventing millions of phantom trucks to sell a wider bridge Read Post »
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
They’re digging in the wrong place Read Post »
IBR re-wrote the definition of congestion to make I-5 traffic look worse For decades, Oregon DOT has defined traffic congestion as freeway speeds below 35 MPH. Now, for the Interstate Bridge project, IBR has moved
Moving the goalposts: Redefining traffic congestion Read Post »
What City Observatory Did This Week They’re digging in the wrong place:Â Â A new, independent analysis by national traffic expert Norm Marshall of Smart Mobility, Inc., shows that the proposed IBR project fails to fix the
The Week Observed, October 25, 2024 Read Post »
