As we approach the heart of summer, families around the country are planning travel vacations. With gas prices approaching $5 per gallon in some places, Americans are looking for anything to decrease ...

Traffic congestion is the top problem facing the city's transportation infrastructure, a recent survey of 1,700 residents found. But it's a problem that cannot be solved by simply building wider roads ...

This is your first of three free stories this month. Become a free or sustaining member to read unlimited articles, webinars and ebooks. In the United States, gondolas (also known as aerial cable cars ...