Runway Incursion Severity Risk Calculator

This tool, developed for ICAO, is intended to enable a consistent assessment to be made of the severity of runway incursion events.

For the purpose of global harmonisation and effective data sharing, runway incursion severity has been divided into 5 categories A to E where A is the most critical.

The RISC is available for download, free of charge, from

Further Reading


SKYbrary Partners:

Safety knowledge contributed by: