It's a very difficult and challenging question. Each blockage is going to have different circumstances attached to it, different root causes and different paths to solutions. Ultimately, it's more of a law enforcement issue than it is a real safety issue, and so it's incumbent upon the railway companies to work with the police of local jurisdictions, as well as with the courts, through injunctions, to address these.
On June 15th, 2021. See this statement in context.