In 2009, São Paulo Metro decided to implement a monorail solution for the extension of Linha 2 Verde, west to east, between Vila Prudente and Hospital Cidade Tiradentes. The 24-km (14.9 mi)-long line has 17 stations, two maintenance facilities, and numerous switches for the operation of the trains. The project was delivered through a variety of mechanisms. The 2.9-km (1.8 mi) first phase is under construction, and comprises of two stations and one maintenance facility being built by Construtora Queiroz Galvão. Once construction began on this section, São Paulo Metro held a Design-Build competition for the project’s remaining 10-km (6.2 mi), with eight additional stations leading to Station São Mateus and an11.6-km (7.2 mi) extension to Cidade Tiradentes. The winner of this Design-Build competition was Consórcio Expresso Monotrilho Leste (CEML), a consortium formed by the civil constructors Queiroz Galvão and OAS, and the train provider Bombardier Transportation. Numerous consultants are providing the civil design: Planservi, Proenge, Zamarion, and Millens Consultants. Innova Technologies is the international monorail consultant, delivering overall civil-system coordination and the design and shop drawings for all guideway beams and emergency walkways in the project.