In Denmark, they are regularly used to warn at "unmanned" level crossings, i.e. where there are no warning bells, lights or barrier. And only if they are outsi

In Denmark, they are regularly used to warn at "unmanned" level crossings, i.e. where there are no warning bells, lights or barrier. And only if they are outside of towns. There are very few of these level crossings left in Denmark, and they are usually only for pedestrian paths, like say when the train travels through a forest, and the forest path crosses the tracks. In my regular commute, which includes a local train and a regional train, there are two instances (exclusively on the local train's singular track). The regional trains I use have no level crossings on their tracks (all bridges and tunnels).