Maglev uses electromagnetic forces for vertical and horizontal support as well as for propulsion. Unlike traditional HSR with steel wheels on steel rails, maglev eliminates any contact between vehicles and guideways, and offers faster travel with much lower maintenance, greater safety, lower vibration and noise, zero vehicle exhaust emissions, all- weather operational capabilities, fewer environmental impacts and higher energy efficiency. Maglev also means profitable operations and freedom from governmental operating subsidies.
Since 30% of all domestic air travel consists of trips of 500 miles or less, maglev promises to eliminate much of the need for new airport expansion. But given the long lead times for large-scale projects, Congress should decide soon how best to serve this country's future transportation needs with maglev.