To many, the ingredients for New York City’s bike-share program suggested a sort of sadistic alchemy. Start with notoriously unforgiving traffic. Add thousands of bicycles along the city’s most congested corridors. And see how perhaps the world’s least understanding drivers would cope with the new additions. And one more thing: Many of the cyclists would be helmetless novices — or worse, tourists — careening into and out of lanes with the whimsy of a youngster pedaling through a suburb. As of Monday, though, after more than five months and five million trips, none of the program’s riders have been killed on the bikes. About two dozen injuries, most of them minor, have been reported. Last year, according to the city’s Transportation Department, 18 cyclists were killed in car crashes from January through October, compared with 10 so far this year, though citywide, cyclist injuries have remained consistent. There was one cyclist death this year in the neighborhoods served by the bike-share program, in parts of Manhattan and Brooklyn, though the cyclist was not riding a Citi Bike. Over the same period last year, there were two bike deaths in these areas. Read on in NYT.