012815_HN_Miller_640New Englanders began to clean up and dig out Wednesday after a blizzard slammed the region with close to 3 feet of snow in some places, as well as high winds that caused power outages and toppled seawalls. Massachusetts Gov. Charlie Baker lifted the state’s travel ban at midnight Wednesday and service on Boston’s MBTA transit system was set to resume on a modified schedule. Flights were to resume at dawn Wednesday at Logan International Airport, among the nation’s busiest air hubs, and Boston’s public transit and Amtrak trains to New York and Washington were set to roll again. However, bitter cold threatens to complicate efforts to clear clogged streets and restore power to more than 15,000 customers — including the entire island of Nantucket — shivering in the dark, about half as many who lost electricity at the height of the storm. Forecasters have called for high temperatures to remain below freezing for the rest of the week. The low in Boston Wednesday was expected to be 10 degrees, with a windchill of minus 5. Boston Mayor Marty Walsh said he would maintain driving and street parking bans until further notice and warned that city schools may be closed on Thursday as well as Wednesday, depending on how cleanup goes. Walsh said he hoped that major roads in the city would be cleared Wednesday morning so the snow emergency could be lifted later in the day. More