Bio
Roelof van Ark
Roelof van Ark is CEO of California High-Speed Rail Authority.
He spent more than 20 years as an executive, managing director, general manager, senior technical manager and senior project engineer for Siemens, the manufacturers of the popular ICE high speed trains, working in Germany, South Africa and most recently in Sacramento, where he was president and CEO of Siemens Transportation Systems.
Encyclopædia Britannica Article
- monorail
Electric railway that runs on a single rail either above or under the railway cars. The first systems were introduced in the early 20th century; the earliest probably opened in 1901 in Wuppertal, Germany. Short-run monorails have since been built in such cities as Tokyo and Seattle. Because of higher costs and slower speeds than conventional rail systems, the monorail has not gained wide support. High-speed monorail vehicles that use magnetic levitation have been undergoing research for many years.
- monorail on britannica.com
© 2010 Encyclopædia Britannica, Inc.