Tezonco metro station

On 3 May 2021, at 22:22 CDT (UTC−5), an overpass in the borough of Tláhuac carrying Line 12 of the Mexico City Metro collapsed beneath a passing train. The overpass and the last two cars of the train fell onto Tláhuac Avenue near Olivos station, killing 26 people and injuring 98 others. It was the Metro's deadliest accident in almost fifty years. The line experienced technical and structural problems that led to a partial closure of the elevated section where the accident occurred between 2014 and 2015. An earthquake in 2017 further damaged the span; although it was repaired within a few months, residents reported problems still existed years later. The line was announced in 2007 as an underground line with the possibility of operating rubber-tired trains because of the instability of the city's soil. The line was scheduled to be opened by 2010 but due to the budget and time constraints, the project was modified to operate both underground and overground with steel-wheeled trains, which researchers have named as one of the causes of track instabilities and damage since the beginning of the line's operations. Empresas ICA, the company that built the system's other lines, constructed it with Alstom Mexicana and Grupo Carso—the latter owned by Carlos Slim. Claudia Sheinbaum, mayor of the city, hired the Norwegian risk management firm Det Norske Veritas (DNV) to investigate the causes of the collapse; preliminary investigations found it was related to deficiencies in the construction of the bridge, and a lack of functional studs and poor-quality welds that led to fatigue in the collapsed beam. Further investigations led them to conclude the bridge was designed and built without quality standards, that the construction and the line's design changes had been inadequately supervised, that there was a lack of fixing and safety elements, and that periodic maintenance checks that would have detected the girder buckling had not been done—the last statement being contested by the city government. Carso, the company responsible for the construction of the collapsed section, denied any wrongdoing but Slim agreed with the government of Mexico to repair the section free of charge. In December 2021, the office of the city's attorney general filed charges against ten former officials—including the project director—who were involved in the construction and supervision of the project in December 2021; as of March 2023, these are awaiting trial for manslaughter, injury, and property damage.

Olivos metro station is a station of the Mexico City Metro in the colonias (neighborhoods) of Ampliación Los Olivos and Granjas San Jerónimo, in Tláhuac, Mexico City. It is an elevated station with two side platforms, served by Line 12 (the Golden Line), between Tezonco and Nopalera stations. The station's pictogram features an olive branch, as it references the area's reputation for olive oil production during the Colonial period. The station was opened on 30 October 2012, on the first day of service between Tláhuac and Mixcoac metro stations. The facilities are accessible for people with disabilities as there are elevators, tactile pavings and braille signage plates and there is a bicycle parking station. In 2019, the station had an average daily ridership of 17,846 passengers, making it the seventh busiest station on the line. The station was closed for 20 months due to structural faults found in the line in 2014. In May 2021, a portion of the station's overhead track collapsed while a train was on it. The track fell onto cars and pedestrians below it, killing 26 and injuring 98.

The 9th federal electoral district of Mexico City (Spanish: Distrito electoral federal 09 de la Ciudad de México; previously "of the Federal District") is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of 22 such districts in Mexico City. It elects one deputy to the lower house of Congress for each three-year legislative session by means of the first-past-the-post system. Votes cast in the district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the fourth region. The current member for the district, elected in the 2024 general election, is Rigoberto Salgado Vázquez of the National Regeneration Movement (Morena).

Tláhuac is a borough (demarcación territorial) in the Mexico City, located in the southeastern edge of the entity. Though Tláhuac still contains rural communities within its borders, mostly in the southern and eastern portions, the borough has undergone a massive shift from urbanization, especially in its northwest. Tláhuac has experienced the fastest rate of population growth in Mexico City since the 1960s. Much of the area is former lakebed where Lake Chalco and Lake Xochimilco met, with the town of San Pedro Tláhuac originally on an island. There are still some lake areas along with four major canals and wetlands, also under conservation status. The urbanization has led to serious traffic and transportation problems as well as the completion of Line 12 of the Mexico City Metro in 2012, which a terminal in the borough.

Periférico Oriente is a station on Line 12 of the Mexico City Metro. The station is located between Calle 11 and Tezonco. It was opened on 30 October 2012 as a part of the first stretch of Line 12 between Mixcoac and Tláhuac.The station is located southeast of the city center, at the intersection between Avenida Tlahuac and the Anillo Periférico. It is built above the ground. The symbol for the station depicts the outline of a prison guard tower, in reference to the nearby Recusorio Oriente prison.

Nopalera metro station is a station of the Mexico City Metro in the colonia (neighborhood) of Miguel Hidalgo and the barrio of Santa Ana Zapotitlán, in Tláhuac, Mexico City. It is an elevated station with two side platforms, served by Line 12 (the Golden Line), between Olivos and Zapotitlán metro stations. The name of the station alludes to the numerous pig and poultry farms that used to occupy the area, and to the nopal cactuses that used to grow on their fields. Similarly, the pictogram for the station depicts the outline of a flowering nopal. The station was opened on 30 October 2012, on the first day of service between Tláhuac and Mixcoac metro stations. The facilities are accessible for people with disabilities as there are elevators, tactile pavings and braille signage plates and there is a bicycle parking station. In 2019, the station had an average daily ridership of 22,491 passengers, making it the 5th busiest station on the line. Since it was opened, Nopalera metro station has had multiple incidents, including a 20-month closure in 2014 due to structural faults found in the elevated section of the line, a closure caused by the 19 September 2017 earthquake that affected the station's track columns, and the subsequent collapse of the track near Olivos station in 2021.

Calle 11 is a station on Line 12 of the Mexico City Metro. The station is located between Lomas Estrella and Periférico Oriente. It was opened on 30 October 2012 as a part of the first stretch of Line 12 between Mixcoac and Tláhuac.The station is located southeast of the city center, at the intersection between Avenida Tláhuac and 11 Street. It is built above the ground.

Zapotitlán metro station is a station of the Mexico City Metro in the town of Santiago Zapotitlán and in the colonia (neighborhood) of Conchita Zapotitlán, in Tláhuac, Mexico City. It is an elevated station with two side platforms, served by Line 12 (the Golden Line), between Nopalera and Tlaltenco metro stations. The station's pictogram features the glyph of Santiago Zapotitlán, which shows a toothed sapote tree with three branches. The station was opened on 30 October 2012, on the first day of service between Tláhuac and Mixcoac metro stations. The facilities are accessible for people with disabilities as there are elevators, tactile pavings and braille signage plates and there is a bicycle parking station. In 2019, the station had an average daily ridership of 13,683 passengers, making it the 13th busiest station on the line. Since it was opened, Zapotitlán station has had multiple incidents, including a 20-month closure in 2014 due to structural faults found in the elevated section of the line, a closure caused by the 19 September 2017 earthquake, and the subsequent collapse of the track near Olivos station in 2021.

Lomas Estrella is a station on Line 12 of the Mexico City Metro. The station is located between San Andrés Tomatlán and Calle 11. It was opened on 30 October 2012 as a part of the first stretch of Line 12 between Mixcoac and Tláhuac.The station is located southeast of the city center, at the intersection between Avenida Tláhuac and Paseo Galias. It is built above the ground.

The Island of the Dolls (La Isla de las Muñecascode: spa promoted to code: es ) is a chinampa of the Laguna de Tequila located in the channels of Xochimilco, south of the center of Mexico City, Mexico. It is a popular tourist attraction due to dolls of various styles and colors being found throughout the island. They were originally placed by the former owner of the island, Julián Santana Barrera, who died from a heart attack in 2001. He believed that dolls helped to chase away the spirit of a girl who drowned years ago.

UAM Xochimilco is one of the five academic units of the Universidad Autónoma Metropolitana in Mexico City. UAM Xochimilco is located in the southern portion of the city and was founded on November 11, 1974. It offers 18 undergraduate degrees.

Xochimilco Ecological Park and Plant Market is a natural reserve or park, with a 13-hectare (32-acre) plant market, the largest in Latin America. The park and market are located in the southern Mexico City borough of Xochimilco, about 23 km south of the historic center of the city. The park was designed by Mario Schjetnan. The park was inaugurated in 1993, on chinampas (artificial lake islands) which had been previously declared as part of a World Heritage Site. However, the area's ecology was badly degraded, and the park was established in order to revitalize and preserve the ecosystem. Success has been mixed. While much of the wetlands have been recharged, pollution and illegal settlements in the area remain as threats. As the park needs to be self-sustaining economically, there are a number of ways that the park raises money. One of the best known of these is the Xochimilco or Cuemanco Plant Market, which rents stalls to ornamental plant producers/sellers near the main entrance of the park.