The yellow line on the left suggests driving on the left side of the road, which is typical for the UK or Ireland. The road markings and the heavy presence of freight trucks indicate a major motorway or port approach. The signage style and the high-security fencing are very characteristic of the UK motorway network. I suspect this is near a major port or crossing in England, possibly Dover. I am reasonably sure of this location.

then: forward

The blue road sign confirms I am in the UK, specifically approaching the Port of Dover. The heavy freight traffic and the specific layout of the lanes are characteristic of the approach to the ferry terminal. The high-security fencing with razor wire is standard for this critical infrastructure. I am very confident this is the A20 approach to the Port of Dover, England.

then: guess