Here's an example of something I consider misguided. There was an incident several years ago where a loader stepped off one of the platforms to access the top of a railcar while doing something else and fell between two cars that another person happened to be moving down at the time. He luckily rolled out of the way of the moving rail cars in time to avoid becoming an amputee or worse. One of the solutions that management thought up was to disallow stepping between two railcars while on top of them, despite the fact that there is a special platform made for that very thing and the incident in question had nothing to do with that. So now loaders have to instead go down a set of stairs to the base of the rail car they were on and then up another set of stairs to the one right next to it instead of simply stepping across the platforms made for that very thing.
On the surface, this seems like a reasonable regulation, but consider that slips, trips, and falls are usually one of the top causes of industrial accidents. There has never been an incident of someone missing that step between cars, yet every year there are incidents involving someone having a slip trip or fall while traversing elevation changes, often involving stairs. And a fall down a catwalk stair is not going to be a pretty one.
Then you add to the fact that there are often times when everything is happening at once just due to the chance of when cars fill up, etc. and the loader is scrambling and basically having to run up and down these stairs to avoid a loss of primary containment and you really amplify the chance of an incident.
Is stepping across the platform on top of two rail cars risk free? Of course not. But is causing the loader to have to run up and down a bunch of stairs to avoid casually stepping across two cars safer? Probably not.