Alstom CBTC range: World leading high-capacity signalling

Leading the way to greener and smarter mobility, worldwide.
Our ambition is to accompany all transportation stakeholders in meeting tomorrow’s mobility challenges. We strive to provide them with the most efficient and digital mobility systems, while further improving the environmental friendliness of our solutions.
Smart innovation for sustainable mobilityInnovation is a collective state of mind
At Alstom, we innovate not only to deliver operationally today, but to transform mobility at large, by pioneering smarter and greener mobility solutions for all.
Learn moreLeading the way to sustainable and smart mobility - naturally
Our strategic plan entitled "Alstom in Motion" has a clear ambition: be the leading global innovative player for a sustainable and smart mobility.
A comprehensive portfolio of mobility solutions
We offer a complete range of equipment and services, from high-speed trains, metros, trams and e-buses to integrated systems, customised services, infrastructure, signalling and digital mobility solutions.
Discover our solutionsState-of-the art and validated solutions
We offer extensive range of proven and modular components for all types of railway vehicles. Continuous research and development, combined with sound validation equipment and decades of return of experience on Alstom and non-Alstom trains, guarantee that our customers will receive both state-of-the art and validated solutions.
Learn moreInnovating along the track
We offer a complete range of sustainable solutions for tracklaying, electrification and the supply and installation of electromechanical material along the entire track, in stations and depots. These infrastructure solutions, whether they are for urban or mainline projects, facilitate the integration of products as part of turnkey solutions.
Learn moreReinventing mobility
Alstom draws on its technological expertise and innovative capabilities to meet the current and future needs of operators and passengers. Its solutions cover a whole range of services, including urban transit, mainline travel, regional transport, mining networks and freight.
Learn moreA custom support
We offer a complete range of customised services including maintenance, modernisation, parts & repairs and support. All of which ensure operators the highest level of availability for their fleets, infrastructure and signalling systems.
Learn moreImproving traffic flow
Our state-of-the-art signaling solutions allow operators to ensure the highest standards in safe, seamless travel with urban and mainline solutions that meet the specific needs of each operation environment.
Learn moreIncreasing efficiency
Drawing on our complementary business lines, we offer bundled and fully integrated systems that include rolling stock, signaling, infrastructure and services. This turnkey approach optimises project execution and transport system performance.
Learn moreNewsroom
Find the latest Alstom press releases and news, press kits, your regional press contacts and more!
Enter the newsroomThe one stop shop for all relevant information for investors and shareholders
Access our financial & share information, our financial calendar and results, regulated information, shareholders' meetings and investors' contacts & presentations.
See moreYou know we make trains move. Discover how we move the world.
At Alstom, we value curious and innovative people who are passionate about working together to reinvent mobility, making it smarter and more sustainable. We are building an agile, inclusive, and responsible culture, where diverse people are offered opportunities to learn, grow and advance in their careers, with options across functions and geographies.
Learn moreJoin Alstom
We are constantly looking for the right talents to solve real-world mobility challenges and invent the transport systems of tomorrow. Visit our career website to search our job openings or to create an account in our candidate database.
Browse jobsThe Alstom Experience
At Alstom, we value curious and innovative people who are passionate about working together to reinvent mobility, making it smarter and more sustainable. We are building an agile, inclusive, and responsible culture, where diverse people are offered opportunities to learn, grow and advance in their careers, with options across functions and geographies.
Learn moreAlstom's united community
Alstom’s community creates an environment promoting and encouraging teamwork, dialogue and cooperation, across all levels of hierarchy and all geographical areas. We are a group of passionate, dedicated people who love working together as problem-solvers and trouble-shooters. We go on a challenging journey, but we do it as a community.
Students & Graduates
Alstom has a long history, but today, we want the world, and especially younger generations, to know the real Alstom. We are a vibrant company with ambitious goals.
Learn moreAlstom University
Alstom University is a learning powerhouse sharing knowledge and a means for its employees to continuously upgrade themselves, their skills and competencies.
Learn moreUrbalis CBTC range at a glance
The need for mass transit systems with expanded capacity is steadily increasing; more people need to arrive on time, without compromising on reliability or safety. For any city preparing to meet this future demand, Alstom’s scalable communications-based train control solutions (CBTC) supports the full range of automatic train control technologies.
Alstom is a strong leader in the mass transit market and a clear number one on the communications-based train control (CBTC) market. Our CBTC range consisting of Urbalis™ and Cityflo™ are suitable for conventional and intelligent solutions and for any complexity, brown- or green-field system, and at all grades of automation.
We have over 30 years’ expertise in radio CBTC and are currently chosen for 160 CBTC metro lines and over 90 lines in operation worldwide we safely carry millions of passengers daily.
We are at the forefront of the latest innovation utilising enhanced intelligence on-board and train-to-train communication to reduce wayside and enable increased operational flexibility
Proven CBTC technology supports optimisation and upgrades with zero service disruption, providing a new dimension in overlay capability. Shorter headways between trains means that more trains can be deployed, resulting in an average 30% higher capacity, whether on manned services or unattended train operation (UTO).
These systems can be deployed quickly, allowing some of the world’s largest cities to meet their transportation needs – rapidly and reliably. This was the objective when doubling capacity on the existing line in Madrid or easing congestion in Delhi by offering alternative routes across the city. Additionally, with the system making greater use of energy saving strategies, consumption can be reduced by up to 30%.
Urbalis Fluence (World-first implementation for Métropole Européenne de Lille)
Whereas Urbalis 400 is adopted by networks requiring standard interlocking systems, Urbalis Fluence takes the CBTC experience a step further by merging interlocking functions into a train-centric architecture. Radio contact between trains enables gaps to be shortened, resulting in even lower headway and 24-hour operational availability.
From Mexico to Italy and Singapore to Canada, clients all over the world testify to Alstom’s project management capabilities in conducting the installation and migration process. Building on valuable return on experience from previous projects, we are today a preferred partner to many transport authorities wishing to revamp and increase the capacities of their urban rail networks.