International Speedway is developing a plan for the installation of additional SAFER barriers at Daytona and Talladega, and will review the safety standards at its other racetracks.

The renewed focus comes three days after NASCAR star Kyle Busch broke his right leg and left foot in a crash into a concrete wall at Daytona. Busch left a Daytona Beach, Florida, hospital on Tuesday and was transferred to another facility in North Carolina for further treatment.

Busch was injured Saturday in the season-opening Xfinity Series race when his car hit an interior wall that did not have a Steel and Foam Energy Reduction barrier. After his accident, Daytona president Joie Chitwood III vowed to cover every inch of the speedway with SAFER barriers.

Daytona is owned by ISC, the sister company of NASCAR.