Designing, building, and maintaining a metro line to match the needs of increasing mobility in dense urban areas involves some challenges: constraints on localization, connections with the existing network, works under operation, concomitance of the construction site, safety of traffic and traveler flows, and so on. We'll present new Building Information Modeling (BIM) implementations through different metro projects in France: Grand Paris Express and extension of the networks around the French capital and Toulouse Aerospace Express. BIM is applied on different transportation project phases. The 3D models cover all the works of rail infrastructure, including underground and aerial stations, and tunnels and bridges. With these extra BIM uses covering the entire rail infrastructure, we'll outline the benefits of BIM uses.