Between 2016 and 2017, 724 people were killed by vehicular terrorist attacks, according to The Risk Advisory Group. Terrorist groups like ISIS and Al Queda regularly instruct their followers on how to commandeer large vehicles to attack crowds of people, leading enterprise security professionals to reevaluate security at the perimeter. For example, following a terrorist group posting a picture of tourists outside the Bellagio fountains in Las Vegas, recommending a vehicular attack on the crowds, city officials in Clark County, Nevada, undertook a $4 million project to install hundreds of bollards along the Las Vegas Strip.

“This project accomplishes two things: it improves the security for crowds, as well as the safety for pedestrians,” says Rob Reiter, co-founder of the Storefront Safety Council and Chief Security Consultant to Calpipe Security Bollards. “Terror by truck isn’t the only vehicular threat to sidewalks; you could have user error or someone driving recklessly that could cause damage accidentally.”