slow-moving freight train carrying several large, cylindrical tank cars

slow-moving freight train carrying several large, cylindrical tank cars. The tanks are painted a light gray color and have "Petroleum" and "Danger" stenciled on them. The train moves along a track surrounded by green vegetation. A concrete overpass is visible in the background. There are a few people walking near the tracks under the overpass. A billboard and buildings can be seen in the distance. The sky is cloudy with patches of blue.