Extending Bangkok’s Blue Line
Delivering a metro system in a turnkey approach including 35 three-car trains
Moving Bangkok in a sustainable way
Extending the Blue Line Metro
Bangkok’s first subway was the Blue Line which started operations in 2004 and was successfully transporting around 320,000 passengers a day on the 20-kilometer metro line with 18 stations. Siemens Mobility delivered the metro system in a turnkey approach in only 28 months, two whole months less than the contractually stipulated project duration. In 2016 the government decided to strengthen the successful line to cope with the mobility needs of its residents. The extension was supposed to complete the semi-circle-shaped line, and double the Blue Line’s overall track length, adding another 28 kilometers and 19 stations from Hua Lamphong to Lak Song and Bang Sue to Tha Pra. With the line's extension completed, experts forecast that Bangkok's metro will transport up to 500,000 passengers per day.
Fully integrated system, minimum project duration
Mass Rapid Transit Authority of Thailand (MRTA), Bangkok Expressway and Metro Public Company Limited (BEM) and CH. Karnchang Public Company Limited placed an order with a consortium of Siemens Mobility and ST Electronics (Thailand) Limited to supply an integrated rail system for the extension of Bangkok's Blue Line Metro.
The project schedule was very tight with only 27 months from project start to trial run in one section of the system. Thanks to a turnkey approach the project team achieved the delivery of the full system in less than 2.5 years since the order was awarded, and delivered the sections for public demo runs three months before scheduled.
Improved metro trains
The 35 three-car trains are an evolution of previous Bangkok metro trains with an improved car design. They can carry more than 800 passengers and have a top speed of 80 km/h.
Safe signaling
An automatic train control system with a high-performance solution is implemented for automatic train protection and automatic train operation which optimizes both punctuality and headways.
Reliable electrification
The electrification consists of two bulk power stations including power transformers, medium voltage swichgears and supply rings, complete DC-traction power supply, passenger station supply and a network control system, which integrates the initial blue line system. An additional emergency power supply guarantees high availability.
Effective services
Siemens Mobility maintains the transit system for ten years in a condition-based maintenance approach utilizing a computerized maintenance management system and an existing depot.
Bangkok Blue Line Extension - Download data sheet
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