Viet Nam Railways Passenger Train in Trang Bom, Dong Nai, Vietnam

A Vietnam Railways passenger train passes us, while we wait in the siding.
The train you see in the video is the southbound "Reunification Express" on the last leg of it's trip towards Saigon. Our train has just left Saigon on it's trip north towards Hanoi, the capital of a reunified Viet Nam since 1976.
Here we see an intercity passenger train along the North to South railway line in Đồng Nai province of Việt Nam. Daily trains run the entire length of the line from Saigon to Hanoi. Trains classed as being "local" stop at most if not all stations along the route and take 40 hours to make the trip. Faster trains make limited stops at the main stations and take 29 hours+ to make the trip.
Trains travelling this line are referred to as the Reunification Express
Vietnamese: Đường sắt Thống Nhất
Daily passenger service is provided along the entire North-South railway by state railway company Vietnam Railways.
Vietnam Railways (VNR, Vietnamese: Đường sắt Việt Nam) is the state-owned operator of the railway system in Vietnam. The principal route is the 1,727 km (1,100 mi) single-track North-South Railway line, running between Hanoi and Ho Chi Minh City. This was built at the metre gauge in the 1880s during the French colonial rule. There are also standard gauge lines running from Hanoi to the People’s Republic of China, eventually leading to Beijing, and some mixed gauges in and around Hanoi.
Hanoi-Saigon Railway
The North-South railway line uses metre gauge, as was commonly used on local railways in France around the time of its construction
1,000 mm (3 ft 3+3⁄8 in) 2,169 km / 1,348 mi
Signaling
The North-South railway line uses a semi-automatic block system, which allows individual signals to work either as automatic signals or manual signals