Bucuresti, Romania
There are multiple level crossings in the park. In the beginning, they all had barriers, than the barriers were replaced by light signalls, then by stop signs, then the track dissappeard, so no level crossing was needed.

More pictures & info about this line.
Photo by Dr2005 - transportbucuresti.trei(a)gmail.com, www.transport-in-comun.ro/trenuri.