Coachella Valley Music and Arts Festival is bolstering its risk mitigation stance with drones and armed security, hoping to prevent a mass attack like the Las Vegas shooting last October.

According to Goldenvoice president and CEO Paul Tollett, the planned increase in armed security is proportionate with the festival’s growth and changes in society.

Roughly 250,000 people are expected at the festival, which will take place April 13-15 and April 20-22.

The Indio police department will be using the drones to view traffic problems and other potential issues.

The majority of security measures at the festival are remaining private, but they’re predominantly subtle ones, like moving the largest tent away from the mid-sized ones, for  lighter human traffic patterns and less stress and crowding for attendees, USA Today reports.  Some of the more visible security measures implemented include walking magnetometers and dog patrols.