The city is stepping up enforcement against drivers who make the streets of New York unsafe for cyclists.
Starting today officers will be on the lookout for vehicles blocking bike lanes, idling in no-standing zones or doubled parked.
Anyone caught may face hefty fines and points on their license.
The "Bicycle Safe Passage" initiative ends Friday and is part of the Mayor's "Vision Zero" plan to reduce traffic-related deaths.
In 2014, 20 cyclists were killed, and nearly 4,000 injured.
In 2015, there were 14 deaths and almost 4,400 injured.
In 2016, four cyclists have been killed so far and 352 others injured.
NY1 spoke with New Yorkers who say they are pleased the police are doing this.
"I've been pulled over by cops for riding through red lights and I've gotten tickets before so thank God they're checking on cars too now," said one bike rider.
"As a cyclist it's definitely welcomed news, I've had too way too many close calls with cars but, on the flip side cyclists have to respect the law too, it's not just a one way street," said another bike rider.
City officials say more than 750,000 New Yorkers ride their bikes regularly.
That's an increase of close to a quarter million from five years ago.