NYC to Install 1,500 Security Barriers After Vehicle Attacks

New York City is putting up  over 1,500 more barriers  to help guard people from vehicle and other terror-related attacks.

NYC Mayor Bill de Blasio announced the effort Tuesday.

He said the barriers are part of a $50 million investment in protective measures across the city.

The barriers, called bollards, are cylindrical metal posts.

They'll replace concrete barriers installed after a number of vehicle attacks in the Big Apple.

In late October, a  truck on a bike path  struck pedestrians and a school bus.

Eight people were killed.

SEE MORE: New York City Is Set To Record Its Lowest Crime Levels Since The 1950s In May, a vehicle  plowed through  pedestrians in Times Square, leaving one person dead and several others injured.

Officials will start installing the permanent metal bollards in March.

The installation is expected to take a few years.

Additional reporting from  Newsy affiliate CNN .