Mass Rapid Transit Authority of Thailand (MRTA), Bangkok Expressway and Metro Public Company Limited (BEM) and CH. Karnchang Public Company Limited have officially implemented full passenger revenue service for the Blue Line Extension. In support of this project, Siemens Mobility integrated turnkey services delivered 35 three-car metro trains, installed the signaling, built the traction power supply, developed a passenger information system, implemented a SCADA system, provided depot workshop equipment, and instituted system integration by incorporating the telecommunications and platform screen door systems provided by ST Electronics Thailand into the project. In addition to delivering the overall project management, going forward, Siemens Mobility will also provide maintenance for 10 years. The fully completed Blue Line Extension adds 28-kilometers of track, 19 new stations, and an additional 35 three-car trains. The completed extension will now allow the Blue Line to carry approximately 500,000 passengers per day and seamlessly connects the Thonburi side of the Chao Phraya river to the rest of the city which suffers from traffic congestion.