The ‘Hydrogen Super Highway’. A zero emission  hydrogen super highway with fully integrated solar powered hydrogen production and distribution with a high speed magnetic levitation public transit network. The first leg is slated for construction in Michigan in 2008.  
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   Ultimately, we arecreating a massive functional upgrade to the efficiency
 of the United States public infrastructure as a whole by
 implementing a nested
 domain address system for a National Public Transit
 Network.
 Our vision is this:  To mass produce a unified public conduit systemthat can be installed anywhere at the lowest possible cost, the highest possible
 quality, with the greatest efficiency, built from the most resilient materials
 and is pollution free.
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Related:
World’s First Solar-Powered, Hydrogen-Fueled High-Speed Rail System - EcofriendHydrogen Super HighwayRail & ConduitFHWAIllustrationsQuestionItNow - Will America Lead?: The Hydrogen Super HighwayThe Interstate Traveler Project