The transportation experts submitted a long list of ideas to the mayor this summer. Among the suggestions: aggressively expand street space for pedestrians and ramp up bike lane installation with the goal of doubling ridership; come up with a plan for restricting vehicular traffic in Manhattan like the city did after 9/11, “should traffic congestion surge”; and come up with a “robust communications plan” to help New Yorkers get out of their cars and find other ways to get around. The de Blasio administration did not respond to the panel. Nor did they respond to an open letter written to the mayor by some of its members on September 1st. According to several members of the panel, they’re not even sure it still exists, since their last meeting was in mid-summer.