On February 26, 2009, Mayor Michael Bloomberg announced that traffic lanes along Broadway from 42nd Street to 47th Street would be de-mapped starting Memorial Day 2009 and transformed into pedestrian plazas as a trial until at least the end of the year. The same was done in Herald Square from 33rd to 35th Street. The goal was to ease traffic congestion throughout the midtown grid. The results were to be closely monitored to determine if the project was successful and should be extended. Bloomberg also stated that he believed the street shutdown would make New York more livable by reducing pollution, cutting down on pedestrian-vehicle accidents, and helping traffic flow more smoothly.