PROJECT BACKGROUND

The Orange Line was one of the recommended routes according to the Mass Rapid Transit Systems Master Plan which ran from Bang Kapi (Northeastern side) to Bang Bumru (Western side). After forming the Purple Line, a new line that mixed from vary sections of some other projects, the line remained only the Bang Kapi – Sam Sen Section, however it was extend westward to end at Bang Bumru. The new Orange Line is aimed to serve travel demand in the west (in Thanburi side) and east of Bangkok. It also provides an access to universities (e.g. Ram Khamhaeng University, Ratchapat Insitute, etc.) and many public places (e.g. Dusit Zoo, Victory Monument, MRTA's depot, etc.)

PROJECT CHARACTERISTICS

(1) Alignment

The Orange Line : Bang Kapi – Bang Bumru Section starts from Wat Sri Boonreong (Bang Kapi), running along Suka Phiban III Road, as an elevated structure,. Before approaching Lum Sari Intersection, the line changes into underground structure. After that it goes southward along Ram Khamhaeng Road, passing Hua Mak Stadium and Ram Khamhamg University and then turns right via Huai Khwang Depot. At the Thai National Cultural Center Station (a transfer station), the alignment crosses under the Chaloem Ratchamongkhon Line, bounding for Victory Monument to Ratchavithi Road, passing the King Palace and Dusit zoo. The line still runs westward on Samsen Road, and crosses Chao Phraya River at to Khrung Thonburi Bridge to Thonburi side. Finally, the line terminates before reaching Pinklao – Nakorn Chaisri Road with a total length of 24.0 km.

(2) Structure

For underground section, the typical structure is twin tunnel. And for elevated section, a typical structure is a twin-track viaduct deck supported by a row of single pirers with a span of 30 meters long. However, where the single-column structure is not possible, portal frames structure will be adopted.

(3) Stations

There will be 17 stations along the route, 14 of which will be underground whereas, the rest will be elevated. Platforms are either lateral or central depending on geographical conditions. Certain stations will be integrated with other mass transit line to allow passengers transfer. Escalators, lifts, toilets, information displays, public addresses, and all facilities for the handicapped, will be equipped.

(4) Depot

Major maintenance and storage facilities for the Orange Line have been assigned to the same area of the Blue Line at Huai Khwang.

(5) Park & Ride

There will be 2 park & rides at the both end of the route, Bang Kapi and Bang Bumrou.

(6) Track

Like the Blue Line, 1.435 m. standard track gauge with bottom pick-up third rail will be adopted.

(7) Rolling Stock

The 750-Volt DC rolling stock with 3 to 6 cars will be used. The system is capable to serve more than 50,000 passengers/hour/direction.

(8) Systemwide and Fare Collection System

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

 PROJECT COST

The project cost of the Orange Line is estimated at 1,703.9 million US$ comprising of:

Note :

•  Including cost escalation and VAT

•  US$ 1 = 40 Baht