> > Even if fuel hits $5 a gallon, he said, congestion will
> > merely thin at the margins -- meaning shorter rush hours -- rather
> > than evaporate. "I think the price at which people will stop
> > driving is much higher," he said.
> >
> > In central London, car traffic has dropped 20% since 2003, when the
> > city began charging motorists a fee of about $16
IIRC our pal Charlie Komanoff has calculated that to get the equivalent effect of a $16 congestion charge in New York City, gas would have to cost $28 a gallon.