MRT Nakkhara Phiphat Project (Yellow Line, Lat Phrao – Samrong Section) is a secondary mass transit straddle-type monorail System with elevated structures throughout the entire route. The project connects northern Bangkok areas from Ratchada - Lat Phrao Intersection to Samut Prakan Province in a north-south direction, interconnecting with 4 main mass transit rail lines: the MRT Chaloem Ratchamongkhon Line (Blue Line), the MRT Orange Line Thailand Cultural Center – Min Buri Section (Suwinthawong), the Airport Rail Link, and the Green Line (Sukhumvit). The project starts at Ratchada-Lat Phrao Intersection, connecting with the MRT Chaloem Ratchamongkhon Line (Blue Line), and terminates at Pu Chao Saming Phrai Road, connecting with the Green Line (Sukhumvit) at Samrong Station. The total distance is 30 kilometers with 23 stations. The maintenance depot is located on the eastern side of Si-Iam Interchange, along with a Park and Ride building at the Si-Iam Interchange area.