Chilling surveillance video shows the moment a Brooklyn cyclist tried to steer out of the path of a cement truck just before it fatally struck her.

The video shows artist Devra Freelander on her bike entering the intersection of Boerum Place and Bushwick Avenue from the sidewalk on the northwest corner in East Williamsburg on Monday.

As the United Transit Mix Inc. cement truck approaches in the eastbound direction, Freelander turns her wheel to the right and attempts to stop but fails.

The truck driver had the light, police have said.

Freelander, 28, was an up-and-coming artist whose work has been displayed at the Socrates Sculpture Garden and in Times Square.

She was the 15th person struck and killed while biking on city streets so far this year, according to data compiled by activists — and the third in a week. Drivers struck and killed 10 cyclists in all of 2018.

After the tragedy, Mayor Bill de Blasio ordered the city Department of Transportation to produce a “cyclist safety plan” in the coming weeks. The NYPD also will conduct a three-week enforcement blitz on cyclist-endangering violations like blocking the bike lane.

Bike advocates charge that three weeks of enforcement is inadequate to address the problem.

“Treating the increase in bike fatalities in the city as a momentary problem is not adequate,” said Bike New York Communications Director Jon Orcutt, a former DOT official.