A new plan is afoot to relieve commuter congestion on Minnesota's busiest roadway. Transportation planners are proposing a commuter bus system for Interstate 35W through Minneapolis, Richfield and Bloomington. The bus plan is an alternative to the one billion dollar 35W re-design floated a few years ago to relieve car congestion. Minnesota Public Radio's Dan Olson has more. audio . . . sfx 42nd street overpass It's 5pm on a Friday afternoon and the illuminated brakelights make the four lanes of 35W through south Minneapolis look as though they are carpeted in red. Traffic is barely moving - with one exception. audio . . . bus whoosh