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The Green Line
Background
According to the Cabinet’s meeting on November 7, 2006, the Cabinet has approved in principle for Mass Transit System Development Project in Bangkok and suburban area as the Ministry of Transport proposed. The Project has proposed 4 high priority projects comprising of 5 lines. For the Green Line Project section: On Nut – Bearing – Samut Prakan, the Bangkok Metropolitan Administration (BMA) has proceeded in civil work construction in On Nut – Bearing section for 5.25 kilometers length. The portion Bearing – Samrong – Samut Prakan is in an area which is responsible by Samut Prakan province. However, BMA has also preceded a study of the mass transit system extension development project and carried out a preliminary design drawing of the extension from Bearing – Samrong – Samut Prakan and Mo Chit – Kaset – Saphanmai section.
CharacteristIcs
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.
Project Cost
| Detail | Cost | Unit |
| Land Acquisition | 1,746.25 | million baht |
| Civil works | 10,337.78 | million baht |
| Track works | 1,633.55 | million baht |
| M&E Works | 4,430.42 | million baht |
| Rolling Stocks | 2,645.00 | million baht |
| Consultant Fee | 686.17 | million baht |
| Overhead & Profit | 1,578.63 | million baht |
| Tax | 1,491.80 | million baht |
| Total | 24,549.00 | million baht |
Source
Project Feasibility Study Report Bangkok Mass Transit System Bearing – Samutprakan Section from Office of Transport and Traffic Policy and Planning (December, 2007)
Project website Mo Chit - Saphan Mai - Khu Khot
Project website: www.mrta-greenlinenorth.com
Background
According to the cabinet’s meeting on November 27, 2008 the cabinet has approved the Mass Rapid Transit Authority of Thailand (MRTA) to operate the construction of the Green Line: Mo Chit – Saphan Mai section and also, the Green Line: Bearing – Samut Prakan section. This route is 25 Kilometers long. Later on, the cabinet had a meeting on March 9, 2010 acknowledged of the Commission of the Management of road Traffic’s meeting summary No. 1/2010 on February 8, 2010 approved to extend the Green Line from Mo Chit – Saphan Mai to Mo Chit – Saphan Mai – Khu Khot section. The depot at the south of Don Muang Airport had been canceled and build another depot near Khu Khot station instead.
CharacteristIcs
Alignment
This section has approximately distance of 19 Kilometers with all 16 stations elevated. The project starts from the BTS route at Mo Chit station. Then it goes along the Phahon Yothin road, crossing Don Muang Toll Way at Lat Phrao intersection, passes Ratcha Yothin intersection and Kasetsart University intersection. At Soi Phahon Yothin 55, the alignment diverts to the left side of the road until reaches the Phithak Ratthathammanun Monument or Lak Si roundabout. After that the alignment diverts to the centerline of the Phahon Yothin road, passes Ying Charoen market and when it reaches to the 25th kilometer of Phahon Yothin road. The alignment diverts eastward (north of Bangkok Door area), passes the side of Khu Khot Provincial Police station. Then it goes along median of Lam Luk Ka road and ends at Klong Song which the depot and the Operation Control Center are located.
Structure
The elevated track structure is supporting two way traffic direction. Pre-cast segmental box girder is used for the viaduct structure to support a rail track system. The structure will be assembled and installed quickly.
Stations
There are 16 stations. Some stations will be integrated with other mass transit lines to allow the transfer of passengers. Escalators, lifts, toilets, information displays and all facilities for the handicapped will be equipped.
Depot
The depot is near Khu Khot station with a total area of 130 rais.
Park & Ride
There are 2 Park & Ride buildings.The first one is at the 25th kilometer of Phahon Yothin road (1,042 cars). The other one is near Khu Khot Police station (713 cars).
Track
The track gauge is standard gauge with 1,435 millimeters width. The track gauge is measured inside the running track which 14 millimeters below the top of rail.
Rolling Stock
The 750 Volts DC rolling stock with 4 to 6 cars is used. The system has 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 are the same as in the Chaloem Ratchamongkhon Line.
Project Cost
| Detail | Cost | Unit |
| Land Acquisition | 7,878 | million baht |
| Consultant Fee for Management and Construction control | 1,062 | million baht |
| Civil Works | 26,569 | million baht |
| Provisional Sum of Civil Works | 2,656 | million baht |
| M&E Works | 20,056 | million baht |
| Consultant Fee for M&E Works | 641 | million baht |
| Total | 58,862 | million baht |
Source
Budget follows the draft bill authorises the Finance Ministry to borrow money for the country’s transportation infrastructure.
