The Paris 2024 Olympic and Paralympic Games introduced a new approach focused on legacy, sustainability, and budget control. Instead of building oversized infrastructures, the “Games Wide Open” concept turned Paris's streets and monuments into a giant stadium, bringing the event closer to the people. This creative approach posed challenges for security, transportation, and logistics. To minimise the carbon footprint, 100% of spectators were required to travel on foot, by bike, or public transport. However, existing metro and train stations were not equipped to handle such high spectator flows, necessitating an innovative transport strategy. Ile-de-France Mobilités, the Public Transport Authority for Paris Region, was responsible for the Games’ Spectators Transport Plan. This plan involved computerised modelling, capacity-demand analysis, and collaboration with transport operators, the organising committee, and police authorities. Additionally, specific Traveller Information tools, pricing policies, and communication processes were developed to ensure quick responses during the Games. During the Transport Mobility Forum session, Ile-de-France Mobilités will share insights with other transport actors preparing for large-scale events. Meet the Speaker Nicolas Boichon is a prospective project manager at Ile-de-France Mobilités, who specialises in issues relating to mobility and regional planning.