24 August 2018
The Office of Transport and Traffic Policy and Planning (OTP) has concluded that both the planned expressway and MRT Brown Line subway will be built along the abandoned pillars on Kaset-Nawamin Road, connecting east and west Bangkok.
According to OTP Director-General, Chaiwat Tongkamkoon, feasibility and environmental impact studies revealed that the area along the abandoned pillars on Prasert-Manukitch, also known as Kaset-Nawamin Road, is appropriate for both a subway and expressway to be built on the same line and will result in high economic returns. The subway and expressway have an expected return of 22.3 and 38.9%, respectively.
The MRT Brown Line will start from Khae Rai Intersection and travel along Ngam Wong Wan Road, continuing onto Prasert-Manukitch Road, turning south along Nawamin Road, and ending at Phuang Siri and Ramkhamhaeng Road for a total distance of 22.3 kilometers.
The expressway will start from the East Outer Ring Road, travel along Prasert-Manukitch Road and Vibhavadi Rangsit Road, ending at Ratchawipha Interchange for a distance of 17.2 kilometers.
The subway is expected to cost 50 billion baht, while the expressway should cost 25 billion. The results of the studies will be presented to the land transportation management committee. Construction is expected to commence in 2020. The expressway is scheduled to open in 2024 and the MRT in 2025.