Traffic in Manhattan's central business district fell by 7.5% last week and 273,000 fewer cars entered the borough's central business district after the first congestion pricing fee in the U.S. took effect on Jan.

The program had defied many obstacles over the course of decades. It debuted over the weekend on what seemed to be a successful first day.

The MTA released a report Monday showing traffic heading into New York City was down a week after the new congestion pricing plan went into effect.