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@ rdhd; bad phrasing. Clearly there will be some traffic reduction if you but a rail line in. But it will be marginal, and compared to the tolls increase, the decrease in traffic won't be the same as the increase in tolls paid.

A separate issue is the entire idea behind this is to let developers build density at Tysons -- and only pay for a small portion of the rail -- and this density will eventually cause more traffic. Any small benefits you see in reduction will be erased.

My basic point about externalities -- almost always impossible to measure.

@Oboe; the accident in Arlington did not involve a sidewalk -- pedestrian was either in the street or crossing. Speed was probably the reason for lack of control. Sending a high school student to jail isn't the best answer either.

In terms of the Pettigrew case, I can't see from the facts why you couldn't prove gross negligence. The driver had clearly been up late or drinking.

by charlie on Apr 13, 2011 11:44 am • link • report