I saw a report about Mike Pence's plane overrun today on Twitter link: Mike Pence plane overrun photo on Twitter.
As can be seen there is huge cracks and breaking of the runway but the plane was not damaged. According to twitter this is due to Engineered Materials Arresting System (EMAS). The FAA is adopting a plan to expand the use of this method for arresting overruns on runways that do not have enough land for a runway safety area (RSA).
I am interested to know how this system works. Is it similar to gravel runaway truck arrestors on the steep downhill roads? Do we have any specifications and test data?