Domain

TrainCommuter.com:  we are selling this natural language, easy to remember and pronounce URL that conveys the meaning of a site in no uncertain terms.

Overview

There are billions of global train commuters.  This includes railroads, subways, light rails and streetcars. People who train commute often have time to work, browse the web, and otherwise engage online.  Not only are trains efficient, they are also way lower in emissions/pollution than automobiles.  

TrainCommuter.com can become a hub for any train commuter.  In addition to actual schedules, alerts and data, a community can be formed with interactions between commuters/the website.  Memberships, sponsorships, affiliates and advertising earnings would be main revenue drivers.