Mass+transit

Mass transit
 * subway, underground
 * above-ground, streetcars, trolley, commuter rail, tramway
 * cable cars

Here are some mass transit solutions - old and so new that they haven't been built yet.
 * [|Cable cars] - San Francisco is famous for its steep streets and cable cars that carry thousands of people up and down the hills every day. [|Mechanical engineer] Andrew Smith Hallidie, "father" of San Francisco's cable cars, built a reputation for his wire-rope tramways. In 1871, he got financial backing to build a wire cable system to propel streetcars up the hills of the city, replacing the horse-drawn streetcars that were in use throughout the 1800s. [|- mechanical details]


 * [|Land Airbus] (video) - interesting concept for a future transportation system to accommodate transit passengers as well as cars on busy city roads.


 * What do you think?**
 * Have you ridden on a subway or a tram? Are there buses near your house?
 * In cities with lots of traffic, what are some ways to move lots of people other than by car?
 * Why do people drive cars for just one person?
 * How can cars and people movers share the roads?

> wheel hub engines,
 * Engineering ideas**

Now it is your turn. Here are some challenges for you to work on...
 * Show and Tell**


 * News, updates**


 * Learn more...**

..r1d0