New York City’s 2019 ride-hailing surcharge cut overall taxi and ride-share trips by 11 percent in Manhattan but failed to reduce traffic congestion, a key goal of the policy, according to a new NYU Tandon School of Engineering study published in Transportation Research Part A.”While this surcharge differs from the MTA’s proposed congestion pricing plan, the study’s findings can contribute to the current discourse,” said Daniel Vignon, who led the research.