Mumbai is set to enhance its metro network with the addition of 39 driverless trainsets for Metro Line 4. These Metropolis trainsets, designed with a focus on passenger comfort and manufactured in India, promise to revolutionize commuting in the city.

Alstom, a global leader in smart and sustainable mobility, has been commissioned to supply the 234 Metropolis metro cars (39 trainsets of six cars each) and a Communications Based Train Control (CBTC) signalling system with five years of maintenance service, by Larsen & Toubro Limited, India. The total value of the supply of these products, solutions, and services amounts to a few hundred million euros for Alstom.

These trains will be manufactured in India at Alstom’s Sri City factory. The company will also provide FlexCare Perform maintenance services for five years to ensure the metro fleet runs safely and reliably. Alstom's scope includes comprehensive maintenance for the 234 Metropolis cars.

Mumbai Metro Line 4, also known as the Green Line, is a 35.3 km elevated corridor with 32 stations, connecting Wadala in Central Mumbai and Kasarvadavali in Thane. It will be one of the longest metro lines in the city, providing connectivity to the existing Eastern Express Highway, Monorail, and other lines of Mumbai Metro.

The driverless trains will feature a unique design, prioritizing passenger comfort and accessibility. This includes interior airflow cooling, wheelchair access, and bike racks. Reliable components will ensure high performance and safety, incorporating electrical braking and cybersecurity measures.

Alstom's Urbalis CBTC signalling technology will enable driverless operation with Grade of Automation 4 (GoA4). The system will be managed from an Operations Control Centre at Mandale depot and a Backup Control Centre at Mogharpada. Automatic train control will manage the headway and safety of the 39 six-car trains.

The introduction of these driverless trains is expected to significantly reduce travel time, traffic congestion, and CO2 emissions in Mumbai. The project will alleviate traffic congestion in the city by minimizing travel time, reducing CO2 emissions, and making a substantial contribution to the expanding public infrastructure of India’s Financial Capital.

The Mumbai Metropolitan Region Development Authority (MMRDA) awarded Larsen & Toubro (L&T) the Package CA-234 of Mumbai Metro Line 4. Under this contract, L&T was responsible for supplying 5 major systems for Mumbai Metro Line 4, but L&T has partnered with Alstom Transport for the rolling stock and signalling solution.

Alstom has a long-standing contribution to Mumbai’s metro network, with the Mumbai Metro Aqua Line train and signalling solutions provided by Alstom. Alstom is also providing Signalling & Telecom solutions for Mumbai Line 2 & 7 and Signalling for Line 7A & 9.

The new driverless trains are designed in Bangalore and produced at Alstom’s Sri City facility in Andhra Pradesh, with propulsion systems built in Coimbatore and bogies manufactured in Savli, Gujarat. The Sri City plant has a production capacity of 480 cars annually and has delivered metros for Mumbai, Delhi, Chennai, Montreal, and Sydney.

The Mumbai Metro Line 4 initiative aims to enhance access to the city's most celebrated tourist hotspots. The line will enable visitors to glide swiftly from any corner of the city to these icons, enriching their experience and encouraging longer stays. The arrival of brand-new driverless trains is set to alleviate the familiar crush of Mumbai’s roads, rendering travel less strenuous and more enjoyable.