few resources, and now the chickens are coming home to roost. Growth in demand for scarce space on the roads, along with decades of deferred maintenance, have led to ever-growing traffic congestion traffic that has become a major drag on the productivity of the intercity trucking in- dustry as well as a major source of frustration for commuters who have no practical alternatives to using their cars. $29 billion for highway improvements, $8 billion for mass transit, and another $8 billion as a down payment on the construction of a handful of high-speed rail corridors. So, too, would investments in smarter roads that use a variety of information technologies to minimize bottlenecks. portation, some of the lowest-hanging fruit is getting short shrift. In par- ticular, we estimate that every $1 invested in the intermodal transporta- tion network the infrastructure for seamlessly shifting freight from truck to rail to ship and back would yield $5 to $8 of benefits in terms |