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Bertie -

the TTI methodology defines public transportation as "regular route service from all public transportation providers in an urban area". I.e. operation costs, not capital costs. I'm not saying capital costs do not exist, but simply, they do not appear to be included in the methodology.

As MLD noted, it is a rather simple calculation - drivers are receiving $18 billion in congestion benefit for a $12.5-$15 billion investment. This is because according to TTI methodology, the prediction of $18 billion is solely a reflection of congestion relief for drivers. Given most of the data in front of us, it's impossible to figure out exactly how much congestion is relieved from investments from state and federal funds, given the myriad ways that money is invested across cities, states and regions.

by Scoot on Sep 7, 2011 9:17 pm • linkreport

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