The vehicles are driving on the left side of the road, suggesting a country like the UK or Ireland. The graffiti on the concrete sound barriers is very dense, which is common in urban or suburban motorway environments in Western Europe. The light pole design and the overall road infrastructure look typical of the UK motorway network. I am fairly confident this is in the United Kingdom.

then: forward

The vehicles are driving on the right side of the road, which contradicts my initial UK assumption. The road signs are blue with white text, and the style of the graffiti and the surrounding forest landscape strongly suggest a location in Belgium or France. The specific design of the light poles and the road markings are very characteristic of the Belgian motorway network. I suspect this is near Brussels, Belgium.

then: guess