T.Y. Lin International (TYLI) served as the lead design engineer for the Tren Electrico (Electric Train) Lima Metro Line 1, Segment 2 project in Lima, Peru. The design/build project, which was delivered on-schedule, comprised a 7.7-mile elevated light rail system, with 10 passenger stations. A 390,730-square-foot maintenance yard was also constructed after the last station.
Lima Metro Line 1, Segment 2 connects three main municipalities within the City of Lima (Cercado de Lima, El Agustino, and San Juan de Lurigancho), which are home to approximately 1.5 million people. Lima Metro Line 1 is the largest engineering project designed and completed in Peru to date, and currently serves over 450,000 people.
- As lead designer, TYLI was responsible for the alignment, track design, structural design, and maintenance yard design, as well as construction engineering support.
- Two segmental bridges were included as part of the elevated guideway - the first segmental bridges to be constructed in Lima. One 787-foot-long segmental bridge, with a 361-foot-long main span, crosses the Rimac River. The second segmental bridge, which measures 886 feet long with a 407-foot-long main span, carries the light rail system over an existing vehicular bridge. Bridge construction for the second span was selected to avoid construction impacts on both the river and the existing bridge, which is one of Lima’s busiest roadways, carrying over 37,000 vehicles each day.
- A portion of the alignment was adjacent to a liquid gas deposit, which required that an explosion study be performed to assess the effect of a possible explosion on both the guideway and nearest station.
- Evacuation Studies, as per NFPA 130: Standard for Fixed Guideway Transit and Passenger Rail Systems, were performed for all stations and the guideway using computer simulations.
- A wheel-rail interaction study was performed to ensure the compatibility of the rail installed in the previous phase of Line 1 with the new rolling stock acquired.
- Global Best Project Award, 2015
Engineering News-Record (ENR)