DENVER, Colorado, March 26 -- The Colorado Public Interest Research Group issued the following news release: * * * Denver area transit coalition calls for doubling of frequent, fast, reliable service DENVER - Twice as many people across the Denver region could live within a short walk to a bus and train that comes every 15 minutes or less and runs later into the evening according to a new transit vision released by a coalition of transit advocates. The coalition, the Alliance to Transform Tra  more