SRT Light Red Line

The first 15 km section runs from Bang Sue Intercity Terminal in Chatuchak District to Bang Son where it interchanges with the MRT Purple Line. It then continues west and crosses the Chao Phraya River to the Thonburi side of Bangkok before continuing farther west to Taling Chan where it terminates. Bang Sue Intercity Terminal provides interchange with the SRT Dark Red Line and MRT Blue Line. The line will be extended 12 km west to Sala Ya in Phutthamonthon District of Nakhon Pathom Province. Finally, the line will be extended south from Bang Sue via Phaya Thai and then east to Hua Mak Railway Station in the east of Bangkok where it will interchange with the MRT Yellow Line.

The line opened for free limited trial service on 5 December 2012 between Taling Chan Station and Bang Son Station. The line was operated with 2 refurbished DMUs running a very limited service. There were only 6 services each way a day every 60 minutes from 6am to 8am and from 4pm to 7pm. As such, only a few hundred passengers a day rode the service.[9] On 14 September 2013, weekend services were cancelled.[10] Effective as of 13 January 2014, all services were suspended until further notice. Until the Bang Sue Central Station is completed in 2021 and the SRT has new rolling stock this line will not operate.

The 3rd contract for the Dark Red Line is for electrical and systems (E&S) and procuring EMU rolling stock for both the SRT Light Red and SRT Dark Red lines. An overhead cantenary electrical system will be installed. As of April 2014, only 2 bidders remained but one of the bidding consortium's was disqualified on due to the fact that one of the consortium members (Maru Beni Corp) had convictions for bribery in an Indonesian bidding process.[11]

This left MHSC Consortium (Mitsubishi and Hitachi and Sumitomo) as the sole bidder qualified for the contract. However, their bid of 28,899 billions Baht was above the SRT median price of 26 billions baht which was set in 2010. The MHSC Consortium argued that their bid reflects 2013 prices after the minimum wage increase of January 2012. Finally, after a 2-year delay in the bidding process, in July 2014 JICA approved the loan for Contract 3.[12] However, the coup of May 2014 delayed finalization leading to further review and negotiations. By mid 2016, negotiations had concluded and Hitachi promised that all rolling stock for the Dark Red line would be delivered by 2020.[13] The contract specifies 25 EMUs consisting of ten 4 car sets and fifteen 6 car sets for 130 cars in total.

In late September 2019, the first 2 sets of rolling stock were shipped from Japan[14] and both arrived in Thailand at Laem Chabang port on 12 October 2019 for shipment to Bangkok.[15] By March 2020, 5 sets had been delivered.[16]

As of July 2020, 13 sets - 7 of the 6 car sets and 6 of the 4 car sets - of the ordered 25 sets of rolling stock had been delivered with a further 2 sets due to be delivered by August 2020.[17] By the end of September 2020, 21 sets had been delivered - 13 of the 6 car sets and 8 of the 4 car sets - with the final 4 sets to be delivered in October.[18]

In July 2016, the cabinet approved the construction of the Bang Sue–Phaya Thai–Makkasan–Hua Mak segment.[19] However, the 12 km, 4 station western extension Taling Chan to Salaya was due to be tendered first by September 2018[20] and then slated for the 2nd half of 2019. [21] However, the tender has further been delayed until 2021 as the Transport Minister has requested the new Department of Railways to investigate conducting PPP tenders for this extension.[22]

Construction segments based on M-Map:[23]

Wikimedia Commons has media related to SRT Light Red Line.

• "SRT Red Line website"
• Airport Rail Link, BTS, MRT & BRT network map

• Mass Rapid Transit Master Plan in Bangkok Metropolitan Region
• SRT Dark Red Line
• Airport Rail Link (Bangkok)
• BTS Skytrain
• Sukhumvit Line
• Silom Line
• MRT (Bangkok)
• MRT Blue Line
• MRT Brown Line
• MRT Grey Line
• MRT Light Blue Line
• MRT Orange Line
• MRT Pink Line
• MRT Purple Line
• MRT Yellow Line
• Bangkok BRT
• BMA Gold Line