I can fly to Schiphol airport, get on a train without even stepping outdoors, ride to a suburb on the far side of Amsterdam in time for a morning meeting, walk

I can fly to Schiphol airport, get on a train without even stepping outdoors, ride to a suburb on the far side of Amsterdam in time for a morning meeting, walk to my hotel, all without even a taxi ride. On this side of the ocean, I have to call for a limo to the airport because the commuter rail schedule is too sparse, the trains are too crowded for being under-provisioned. The diesel locomotives are as polluting as if everyone on the train drove their cars instead. There is no long term parking at the train stations. The subway stop at the airport is far from the terminals. Bad transportation is a drag on the US economy. How much productivity sits on our highways for hours each day?