In fact, a set of safety guards needs to be put in place to prevent uncontrolled movements. There are administrative safety guards, such as rules, laws and procedures. There are also physical safety guards, such as electronic systems or mechanical devices that can prevent something from happening if an employee makes a mistake.
What we find in our investigations is that physical safety guards are often not present in the rail industry. People rely a lot on administrative safety guards. That is why we recommend a greater emphasis on physical safety guards.