Grand Paris Express Metro Website

Context

The Société du Grand Paris is responsible for the Grand Paris Express, one of Europe's largest infrastructure projects — a major expansion of the Paris metro network. The project requires transparent, ongoing communication with the public and a wide range of stakeholders.

The goal: design a website that serves as a comprehensive resource for everyone from local residents to urban planning professionals, across the full duration of a multi-decade construction programme.

Problem Statement

Existing communication channels were fragmented. There was no centralized platform where users could reliably find accurate, current information about the project. The challenge was to present complex infrastructure data clearly and accessibly, for an audience with very different levels of technical knowledge.

Approach

As Lead UX Designer, I drove the end-to-end user experience process across several key phases.

Research & Discovery. I conducted user research through interviews and surveys with local residents, government officials, and project stakeholders. This surfaced key pain points and shaped the information hierarchy.

Personas & user journeys. I developed personas for the main user groups and mapped their journeys to ensure their needs were addressed at every touchpoint.

Wireframes & prototyping. I created wireframes and interactive prototypes in Figma, focusing on simplifying navigation and making complex information easy to digest. Prototypes were tested with real users to validate design decisions.

Collaboration. I worked with visual designers and front-end developers to translate wireframes into high-fidelity designs. Accessibility standards (WCAG) were verified throughout development.

Solution

A responsive, accessible website organizing information around user needs.

Simplified navigation. A clean navigation system lets users quickly find information about specific aspects of the project — lines, stations, timelines, environmental impact.

Content hierarchy. A structured layout surfaces essential updates first, with clear paths to detailed reports or technical documents for users who need them.

Accessibility. WCAG compliance throughout, ensuring users with disabilities can navigate and interact with the content.

Outcome

The website launched as the central hub for public communication on the Grand Paris Express. Key results:

• Improved navigation led to increased user engagement.
• Stakeholders reported finding critical project information faster.
• Transparent real-time updates, timelines, and interactive maps strengthened public trust in the project.