AA.com story, by Ryan Stanton:
Seems to have been driven by security imperatives; the threat of a large car-bomb next to the streetside wall of the new West Concourse. Lots of citations to DHS in the runup to the vote. One AA.com commenter had an interesting notion; wondering if a new concourse in the South endzone would similarly require closure of Stadium Blvd.
With the University's election to press for this (the city council vote was 7-4, reflective of lots of local opposition to this inconvenience but the overwhelming influence of the Big U), it once again highlights the persistent lack of good infrastructure around the Stadium. Michigan really needs to keep working on parking and traffic, when they are doing things like building basketball annexes that rob parking places and closing Main Street to choke traffic flow.