Secretary Chao is hardly the first Trump administration official to come under fire for way they've handled their ethics agreements.
The system is designed to transport passengers underground at up to 150 miles per hour.
A city that often embodies the proverb "time is money" may soon charge drivers contributing to gridlock.
President Trump's Administration appears to be confused about its position on funding Amtrak and rail travel in the United States.
"For an administration that has talked about caring about creating good jobs related to infrastructure, it's a complete contradiction between the stated policy versus the actual policy."
"We need ideas outside the box because, frankly, the box is broken," he said.
Lyft's new service allows users to "Walk to stop. Hop in. Hop out. Walk to destination."
Some investors have questioned how soon Trump's pro-growth policies may be implemented.
Our suburban car culture inspired governments to ignore public transportation options, while Europe innovated.
An elevated set of rules are needed for autonomous vehicles to share the road and make life-and-death decisions for us.
Five companies have put aside their differences to help create a national framework of laws for self-driving cars.
A revolution is taking place and transportation is the battle zone—the old order is under attack.
Officials had advised people to stay away from the major train station.