A driver who was not drunk and stayed at the scene of a crash does not usually face serious consequences. But drivers often behave in ways that increase the likelihood that a crash will happen.

Only four drivers were arrested in 28 cyclist deaths last year — about 14 percent of those crashes, according to the police. Eight other drivers received a summons for violations including speeding, unsafely opening a door into traffic and unsafe passing.

Sgt. Jessica McRorie, a police spokeswoman, said the police investigate every deadly crash and are committed to Vision Zero.

The police decided not to charge Mohamed Marey, the driver who hit Ms. Moses in January 2019. Officers appeared to blame Ms. Moses because she was moving across the road to turn left and was not wearing a helmet, her daughter said.

But in a rare rebuke, a judge for the Department of Motor Vehicles revoked Mr. Marey’s license in October. After reviewing footage from Mr. Marey’s dashboard camera, the judge said she disagreed with the police determination that bicyclist error caused the crash.

Instead, the judge blamed Mr. Marey for trying to pass Ms. Moses by crossing the double yellow line in the middle of Kings Highway when he hit her.

“Part of being safe on the road is always keeping your distance and being aware,” Ms. Moses’ daughter said. “That’s what really upset me — if you don’t know what a pedestrian or cyclist is going to do, slow down.”