Twenty-one people were killed in New York City traffic in March, and 4,152 were injured, according to the latest NYPD crash data report [PDF].

As of the end of March, 45 pedestrians and cyclists have been killed by city motorists this year, and 3,590 injured, compared to 33 deaths and 3,519 injuries for the same period in 2012.

Citywide, at least 11 pedestrians and one cyclist were fatally struck by drivers: one pedestrian in Manhattan; three pedestrians in the Bronx; two pedestrians and one cyclist in Brooklyn; four pedestrians in Queens, and one pedestrian in Staten Island. Among the victims were Cheng-Chiu (Corinna) Fang, Victor Lopez, Andrew Quinn, Tenzin Drudak, Roberto Baez, Lillian Cruz, Sook-Ja Kim, Juliana Busto, and Denim McLean. At least one child and one senior were killed by motorists in March: Denim McLean, 2, and Roberto Baez, 75.

Across the city, 990 pedestrians and 192 cyclists were reported hurt in collisions with motor vehicles. Per NYPD policy, few of these crashes were investigated by trained officers.

Of nine fatal crashes reported by Streetsblog and other outlets, no motorists were known to have been charged for causing a death. The truck driver who struck Lillian Cruz was cited for failure to exercise due care. Historically, nearly half of motorists who kill a New York City pedestrian or cyclist do not receive so much as a citation for careless driving.

There were 16,480 motor vehicle crashes in the city last month.

Download March NYPD summons data here. Crash and summons data from prior months is available in multiple formats here.

After the jump: contributing factors for crashes resulting in injury and death.