Underground train station on the west side, pedestrian underpass on the east side and platform ceiling. The underground train station was built by the top-down method, with complex construction phases and using temporary earth retaining structures. Column/micropile walls were used to build the train station peripheral walls. The pedestrian underpass was built by hydraulic jacking and using temporary earth retaining structures. The underpass atrium was built by the top-down method. Services Provided: Preliminary Study, Final Design and Technical Assistance. Owner: REFER, EPE.