The driving side appears to be on the left, which is common in places like Hong Kong or the UK. The road markings and the specific style of the overhead gantry structure strongly resemble the infrastructure found in Hong Kong. The vegetation looks tropical or subtropical, consistent with the climate of South China. The overall road layout and the concrete barriers are very characteristic of Hong Kong's highway system. I suspect this is a highway in the New Territories of Hong Kong.

I am 70% sure.

then: forward

The left-hand driving and the specific design of the overhead gantry and concrete barriers continue to point strongly toward Hong Kong. The hilly terrain in the background is very typical of the New Territories, specifically areas like Tuen Mun or Yuen Long. The road markings and the vegetation are consistent with a major expressway in this region. I am confident this is a highway in the New Territories of Hong Kong.

I am 85% sure.

then: guess