At one time, Cambridge Systematics, the consultant that developed ridership models, estimated that more than 90 million people would ride the trains every year … said David Brownstone, a UC Irvine economics professor who reviewed the work of consultants that provided ridership estimates. “Once we pointed out all the problems, they lowered it to 25 million and characterized it as a minor change,” he said. “Calling that a minor adjustment was a flat-out lie. The mistakes were obvious and crude.” 

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