World leader in underground metro rail lines, expert in urban density

The metro is the backbone of the modern city. Underground metro rail lines enable mass transit quickly and reliably, right where demand is at its peak. By freeing up the city streets from traffic congestion, the metro gives space, time, and quality of life back to the city. Around the metro stations, the city becomes more densely packed, interconnected, and more accessible to all.

Automated metro lines are the new generation. More flexible, more responsive, more efficient... The automated metro adapts in real time to user needs. Automation improves regularity, optimizes costs, and makes the network more resilient. It is a key progress driver for cities that are ambitious, innovative, and striving for operational excellence.

With RATP Dev, what has been tried and tested in Paris is not simply copied and pasted elsewhere... Rather, it is adapted to the unique challenges of each city. RATP Dev assists city governments and organizing authorities with their most strategic metro projects—creating a whole new network, automating an aging network, modernizing a transit system that has grown overburdened, line extensions in constrained urban settings—by adapting methods honed and perfected in the real world, not a theoretical one.

Because all around the world, the promise is the same: transforming complexity into reliability, securing projects over the long term, and delivering transit systems that work as intended, every day, for the city and its inhabitants.