Republican Kenny Guinn and Democrat Bob Miller are backing a Maglev corridor between southern California and Las Vegas. Their opinions were published in the Las Vegas Sun and represent one of the clearest and most concise arguments in favor of the Maglev technology. Part is highlighted here, but you should read the whole thing.
Maglev is emissions-free, does not rely upon foreign or domestic oil and uses less energy and emits far fewer pollutants than traditional forms of ground or air transportation. This dramatically reduces CO2 emissions on the highways.
Instead of using wheels, maglev trains hover above the tracks — or guideways — levitated by magnetic force and propelled by electricity. There is no physical contact between the train and the guideway, which eliminates friction and enables high speeds with little to no noise. The base of the train wraps around the guideway and the train therefore cannot derail. Additionally, while the tracks of traditional trains require frequent maintenance and repair, the maglev train guideway, or track, is expected to be in service for 60 years or more with minimal maintenance.