Alignment

       Bangkok Mass Transit System Project route Bearing – Samut Prakan Extension is continued from Bangkok mass transit system project Sukhumvit Line On Nut – Bearing section which ends at Soi Sukhumvit 107 (Bearing). The route is along the median (road isle) of Sukhumvit road, passing Samrong canal, Thepharak intersection, Puchao Saming Phrai intersection and after that the route will be elevated 26.7 meters above ground over southern ring road (Karnchanapisek). This Sukhumvit road section till Srinakarindra intersection, approximately 6.75 kilometers, is divided into 6 lanes concrete road with right of way 30 meters and footpaths on both sides are 2.65 - 2.95 meters wide. When approaching intersection to City Hall of Samut Prakan, the elevated way alignment will turn left along Sukhumvit road. This section is curved and needs to expropriate lands and commercial buildings for foundations and columns construction in order to keep curve radius as design standard. The route runs along median in total 6 kilometers until ending point at Soi Thesaban Bang Pu. The total distance of this project is 12.8 kilometers.

Structure

      The most appropriate structure for elevated train can be divided into 3 types: single track, double track and triple track train system.

Stations

      There will be 9 stations along the route. The station has been designed to stand along the median of the road and separated into 3 levels which are at ground level, concourse level and platform level. Certain stations will be integrated with other mass transit line to allow the transfer of passengers. Escalators, lifts, toilets, information displays, public address and all facilities for the handicapped will be equipped.

Depot

    The depot of this project is located at the ending point of the route near MEA Bang Ping substation. It is an empty land with 132 Rai and also, this site was specified in EIA report of the Bangkok Modern Terminal Ltd. (BMT) (Samrong-Samut Prakan) which has been approved by National Environment Agency (NEB). The Operation Control Centre (OCC) and administration buildings will be located at the same area of the depot.

Park & Ride

    The area near station E-23 (Samut Prakan National Housing) is suitable for developing into park and ride building including public transport interchange for people to use mass rapid transit system service. This area is 33,000 square meters large and 7,300 square meters area will be provided as a parking lot for cars, buses and taxis.

Track

   The track gauge is standard gauge with 1,435 millimeters width. The track gauge is measured inside the running rails 14 millimeters below the top of rail.

Rolling Stock

   The 750 Volts DC rolling stock with 3 to 6 cars will be used. The system should have a service capacity of more than 50,000 passengers per hour per direction.

Systemwide and Fare Collection System

  The signaling and communication system, power supply and fare collection system of this line will be the same as those of the Chaloem Ratchamongkhon Line.