Calls are growing to improve pedestrian and cyclist safety after a 15-year-old girl was killed while on an electric Citi Bike in Manhattan.
Transit advocates say she is the 13th child killed in traffic this year in New York City, which is twice as many compared to this point last year.
Friends and classmates gathered after school to mourn Daria Serkov, leaving flowers and other tributes at a growing memorial. A vigil was also held Saturday night at the site of the crash…