Definitely a problem unique to railways. I observed a disgusting looking spill of what appeared to be some kind of straw colored sticky glue (points lubricant?). It wasn't at an access gate, but neither are there any points nearby. An entire large tub of it had simply split, presumably dropped as it was being transported to a work site. This happened feet from the fence line, which runs directly alongside a footpath, so some of this stuff had entered the footpath. Due the location, near a bridge, there's no way to avoid the already narrow path.
By design I guess, this stuff is essentially impervious to rain, and doesn't dry out. Needless to say, it looked about as good for the environment or wildlife as crude oil, if not worse. Curiously, by the time I saw it, major effort had been expended to remove the remains of the container, all but the base, the guilty party perhaps hoping it would then be seen as an epic case of seagul excrement. It had the whiff of a corporate cover up.
Absolutely nothing was done about it for weeks, and inevitably it started to spread as people stepped in it or rode through it. No doubt children. It surely landed people with significant cleaning bills and perhaps even health stress. I can only assume the contractor simply didn't report it.
By the time it was cleaned up, as well as all the other effects, it was clear that the delay had meant permanent but superficial damage (deep staining) had been done to the rather nice block paving that forms the nearby steps forking off this path to allow pedestrian access to the paths running beneath the railway bridge. The blockwork was in good nick until then, chewing gum aside, despite looking like it dated from the 90s.
For the usual reasons, this unsightly damage will never be rectified, it will just stay that way for another twenty years, adding to the sense of general mankyness and neglect of the public realm in the areas deemed unimportant. In this case, that includes the deep scar in the dirt alongside the steps cause by cyclists taking a shortcut. I only like this act of vandalism because it exposes all the coal underneath that is a legacy of this branch railway having been an important coal route back in the day.
It's not a main or central route, but it is yards from a well used part of the national cycle network, and is the logical route for pedestrian visitors to their major city as they trabsit between their budget hotel and the nearby chain restaurants.
It's only one incident, but given what it was, it's really inexcusable. And you get no sense that it isn't reflective of the culture of the railway these days. I seriously doubt anyone got fined, so of course the costs are loaded straight onto the tax payer. This is already a loss making area of the railway.