David Schaper

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

AUDIE CORNISH, HOST:

Chicago is famous for its L, the transit system of mostly elevated trains. Soon it might have the X, a high-speed transit system some are calling Tesla in a tunnel. NPR's David Schaper has more.

National Transportation Safety Board investigators say the driver of a Tesla using autopilot did not have his hands on the steering wheel in the moments before a fatal crash in the Silicon Valley area of Northern California in March.

Investigators also found that the Tesla was accelerating, with the cruise control engaged, when it crashed into a highway barrier. Walter Huang, the 38-year old driver, was killed.

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

ARI SHAPIRO, HOST:

If you've already tried to get away for the long holiday weekend or are planning on leaving soon, you probably know this: the highways, airports and train stations are packed with like-minded folks trying to get out of town for the unofficial start of the summer vacation season.

Planes, trains and automobiles are overrun with Memorial Day weekend travelers and those who study traffic analytics say even people who slipped out on Thursday to beat the traffic were greeted by gridlock in many cities.

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

ARI SHAPIRO, HOST:

It's Infrastructure Week again. Since President Trump came into office, it sometimes feels as though every other week is Infrastructure Week. In some circles, this has become a running joke.

MARY LOUISE KELLY, HOST:

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

DAVID GREENE, HOST:

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

DAVID GREENE, HOST:

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

RACHEL MARTIN, HOST:

Copyright 2018 NPR. To see more, visit http://www.npr.org/.

DAVID GREENE, HOST:

Pages