• - On November 30, 1995, Line A "Line A (Medellín Metro)" was inaugurated.

• - On February 29, 1996, Line B "Line B (Medellín Metro)" was inaugurated.

• - On February 29, 2008, the expansion of the Itagüí Station "Itagüí Station (Medellín Metro)" was inaugurated.

• - On May 16, 2008, the expansion of the Niquía Station "Niquía Station (Medellín Metro)" was inaugurated.

• - In 2009, the contract was signed between the Medellín Metro and the company Construcciones y Auxiliar de Ferrocarriles for the manufacture and delivery of 38 new trains that complement the system.

• - In 2011, the first CAF trains (second generation) were delivered to the Metro.

• - On September 17, 2012, the extension to the south and the Sabaneta stations "Estación Sabaneta (Medellín Metro)") and La Estrella "Estación La Estrella (Medellín Metro)") were inaugurated.[14]​.

• - In 2019, the modernization process of the company's 126 first-generation cars begins.

• - On February 28, 2019, Line M opens.

• - In 2023, pre-construction of the future Line E "Line E (Medellín Metro)") or Metro de la 80 begins.

• - At the end of 2023, the modernization of the system's first generation trains ends.

Lines

The system consists of two lines in operation. Each line is identified with a letter and a color. They were inaugurated between 1995 and 1996, it has a total of 27 stations and 34.5 km in length.[15]​.

The following table lists the name, the distinctive color, the length, the terminal stations, the capacity, the year of opening, the sum of stations and the number and type of

vehicles:.

Line A is the inaugural line of the network and is the main axis of the SITVA, its course is north-south and vice versa. The complete route of the line, identified with the color blue, takes approximately 42 minutes.[15]​.

Its first section, between the Niquia station "Estación Niquía (Medellín Metro)") and the Poblado station "Estación Poblado (Medellín Metro)"), was inaugurated on November 30, 1995; on September 30, 1996.[16]​.

Currently, the line has an extension of 25.8 km and 21 stations distributed in the Metropolitan Area of ​​​​the Aburrá Valley. After this intersection is the first elevated station: the Universidad station "Estación Universidad (Metro de Medellín)"), located in the district of Medellín. Line A continues elevated in the subsequent stations, crossing the district, until the Expósitos station "Estación Expósitos (Metro de Medellín)") where it begins the descent until touching ground at the Industriales station "Estación Industriales (Metro de Medellín)") and reconnects with the river. It then turns west to cross, for the second time, the Medellín River between the stations Ayurá "Estación Ayurá (Metro de Medellín)") and Envigado "Estación Envigado (Metro de Medellín)"), both in the municipality of Itagüí. Line A crosses the Medellín River for the third and last time between the stations Itagüí "Estación Itagüí (Medellín Metro)") and Sabaneta "Sabaneta Station (Medellín Metro)") located in the homonymous municipality "Sabaneta (Colombia)"). This north-south route ends at the La Estrella terminal station "Estación La Estrella (Medellín Metro)"), located within the limits of the municipality of Sabaneta.

Line A is the most used line of the metro. This is because, in addition to serving a large part of the population of the metropolitan area, it runs through the main economic, commercial and cultural axis of the Medellín district, locating various urban landmarks along its route, such as the University of Antioquia, the Berrío Park, the La Alpujarra Administrative Center and, finally, the Plaza Mayor Medellín Conventions and Exhibitions "Plaza Mayor (Medellín)"), among others.

Line B is also an integral part of the SITVA, its course is in a central-western direction and vice versa. The complete route of the line, identified with the orange color "Orange (color)"), takes approximately 10.5 minutes.[15]​.

It was put into operation on February 29, 1996. Currently, the line has an extension of 5.5 km and seven stations that exclusively serve the district of Medellín.[15] Its route begins in the center of the city, specifically at the San Antonio interconnection station "Estación San Antonio (Metro de Medellín)"). It continues its course towards the west of the city through an elevated viaduct, passing over 46th Street towards the Cisneros station "Estación Cisneros (Medellín Metro)"), located at the intersection of Avenida Ferrocarril and 46th Street; It continues west over the Medellín River, to then take a course parallel to the bed of the La Hueso ravine, passing through the Suramericana stations "Estación Suramericana (Medellín Metro)"), Estadio "Estación Estadio (Medellín Metro)"), Floresta "Estación Floresta (Medellín Metro)") and Santa Lucía "Estación Santa Lucía (Medellín Metro)") in an elevated manner.

Finally, it passes at surface level to end its journey at the San Javier station "Estación San Javier (Metro de Medellín)"), which allows the transfer to line J "Line J (Metrocable)") of the Metrocable.

Seasons

The Medellín Metro network (Lines A and B) is made up of 27 railway stations, distributed in five municipalities of the Aburrá Valley: 19 in Medellín, three in Bello "Bello (Antioquia)"), two in Itagüí, two in Sabaneta "Sabaneta (Colombia)") and one in Envigado.

Since its planning, the Medellín Metro was conceived as the backbone of SITVA,[20] strongly connected to the component parts of the system. The first transportation method to be integrated into the Medellín Metro was the Metrocable de Medellín cable car system, when on August 7, 2004, line K "Line K (Metrocable de Medellín)") was inaugurated, making Medellín the first city in the world to implement a cable car system as a full-time means of public transportation, in addition to using it with social projection.[21]​.

Later, on December 22, 2011, when line 1 "Line 1 (Metroplús)") of the Metroplús came into operation, it joined the Medellín Metro as a new component of the city's mass transportation network.

When the Metroplús feeder routes, known locally as SIT "SIT (Medellín)") come into operation, a new element is added to the integration of transportation, with the metro as a structuring axis.

In 2011, the EnCicla public bicycle system began, and the Metro, by having certain stations for bicycles, consolidated its predominant position as a pillar of SITVA.

The last method of transportation interconnected with the metro is the T line "Line T (Medellín Tram)") known as the "Ayacucho Tram", which was inaugurated on October 15, 2015; but it began operations on November 30,[22]​.

The rolling stock of the Medellín Metro is powered by electrical energy, through a flexible aerial catenary#Flexible_aérea_catenary "Catenary (railway)"). The track gauge used is 1435 mm (4' 8"), which is the international gauge.[1]​.

The Medellín Metro has a fleet of 80 trains in total, divided into 2 lots:.

• 1 lot: Manufactured by the MAN SE-Siemens company in 1989/1990; They are the oldest trains in the system. A total of 42 trains were produced, which began a modernization process since 2019, which aimed to repower and fine-tune the most important components of the wagons (along with other systems), as well as the integration of new components that would allow these trains to be adapted to the most current railway technology standards. The modernization ended in 2023, with the last two units intervened, ending a process that lasted almost 5 years.

• 2nd batch: Manufactured by Construcciones y Auxiliar de Ferrocarriles (CAF) in 2009 (first batch) and 2017 (second batch), they are the newest trains in the system. 38 trains were produced to complement the aging fleet of MAN trains.

By 2011, the company Metro de Medellín Ltda. had 42 trains with three cars each - for a total of 126 cars or wagons - that provide commercial service for lines A "Line A (Medellín Metro)") and B "Line B (Medellín Metro)").[23]​.

In 2009 Metro de Medellín Ltda. signed with the Spanish company Construcciones y Auxiliar de Ferrocarriles (CAF), the purchase of 12 trains each made up of three cars, which is equivalent to a total of 36 new cars.[23]​[24]​.

The trains serve the service to the new Sabaneta terminal station "Estación La Estrella (Medellín Metro)"), in the municipality of the same name, of the extension of line A. This will improve the frequency of the trains on the rest of the lines and will meet the increase in user demand. The total investment was approximately $211,000 million Colombian pesos, which have been paid with own resources and with a loan from the Colombian banks Banco de Occidente "Banco de Occidente (Colombia)") and Banco AV Villas, reported the Antioquia company.[23]​[24]​.

Another $57 billion pesos will also be invested in complementary developments to put new vehicles into circulation.[24]​.

The Spanish firm has built trains for the subways of Santiago de Chile, São Paulo, Mexico City, Madrid, Barcelona, ​​Bilbao, Washington, London, Rome and Hong Kong, among others.[23]​.

Other large investments will be supported mostly with the Metro's own resources and seek to extend and improve the quality of life among all the inhabitants of the Aburrá Valley.

• - The construction of the future Line E or Metro of 80 is currently being carried out. This new line will operate with "light metro" type vehicles (similar to the tram, but with its own track), it will have 17 stations and will run mainly along Avenida 80, from the Caribe station "Estación Caribe (Medellín Metro)") to the Aguacatala station "Estación Aguacatala (Medellín Metro)") in the south of the city. It is estimated that it will be operational in 2028.

• - In 2021, the Medellín mayor's office signed an agreement to begin pre-feasibility and feasibility studies for a new railway line, which is planned to be 100% underground, and whose letter would be line S.[37][38][39]​.

• - On May 21, 2024, the Medellín Metro, together with the Mayor's Office of Medellín and the Government of Antioquia, announced the purchase of 13 new trains for the system and a re-profiling machine. It is estimated that these new vehicles will be operational in 2027, and it is possible that they will be manufactured and built in the Medellín Metro Workshops.

The Medellín Metro, along with the Santiago de Chile Metro, are the only Ibero-American metro that are not subsidized by local governments in their operation. In addition, the Medellín Metro is self-paying in the operation and maintenance of the system. The Metro's ratings also include the subsidies it offers (up to 50% in relation to the rate approved by the Metropolitan Authority), to users who, due to their socioeconomic, physical or work condition, are considered to enjoy this benefit; This is the case of students, seniors, and people with reduced mobility.

The Medellín Metro is one of the only three subways in the world that generates operating surpluses. The commercial operation of the Metro - transportation service, leasing and exploitation of advertising spaces - generates operational surpluses before depreciation and provisions (EBITDA). As of December 31, 2007, these surpluses were COP$47,178 million pesos. These positive results, which have remained at levels above 20% over the last five years, confirm the company's operational profitability.

In 2007 the company received certification for Colombian Technical Standards ISO 14001:2004, Environmental Management System, and OHSAS 18001:1999, Occupational Health and Safety Management System. Thus, the Comprehensive Metro Management System was complemented with the ISO 9001:2000 standard, Quality Management Systems, all of which makes the Company the only one certified in these three standards among the members of the Latin American Association of Metros and Subways (ALAMYS). This international positioning made it possible to begin in 2007 the exploitation of railway knowledge, unique in the country and recognized abroad by companies from America and Europe, with which alliances and commercial agreements began to be established that will represent an important source of income for the company.

In 2007 the Metro was a special guest at 1. International Congress on Comprehensive Safety in Metropolitan Railways held in Madrid, Spain,[40]​ with the presence of three hundred specialists from 17 countries, as the organizers of the event wanted to learn first-hand about the safety system implemented by the Medellín Metro, which enjoys a good name among the subways in Latin America.

Duff & Phelps de Colombia S.A. assigned in 2008, for the third consecutive year, the "A+" (A plus) rating to the corporate debt of the Empresa de Transporte Masivo del Valle de Aburrá (ETMVA)-Metro de Medellín Ltda. In addition, the World Bank has recognized the Medellín Metro for its positive balance sheets, which since 2001 have grown significantly.[41]​.

• - On October 2, 1996, a Line A train "Line A (Medellín Metro)") derailed while making return maneuvers at Poblado Station "Poblado Station (Medellín Metro)"), no injuries were reported and the train was taken to the workshops shortly after to be inspected and repaired.[42]​.

• - On January 12, 2014, a retaining wall on the left bank of the Medellín River between the Ayurá stations "Estación Ayurá (Medellín Metro)") and Envigado "Estación Envigado (Medellín Metro)") of Line A "Line A (Medellín Metro)") collapsed due to high rainfall and lack of maintenance in the pipeline, the service was suspended between the stations Aguacatala "Aguacatala Station (Medellín Metro)") and La Estrella "La Estrella Station (Medellín Metro)") for 10 days.[43]​.

• - On March 13, 2014, there was again a landslide on a retaining wall of the Medellín River between the Aguacatala stations "Estación Aguacatala (Medellín Metro)") and Ayurá "Estación Ayurá (Medellín Metro)") of Line A "Line A (Medellín Metro)"), paralyzing 6 stations in the south and causing chaos in mobility, the service was suspended for 11 days.[44]​.

• - In the early hours of July 22, 2018, a group of five graffiti artists who were vandalizing a train parked between the Poblado stations "Estación Poblado (Medellín Metro)") and Aguacatala "Estación Aguacatala (Medellín Metro)"), were run over by a train carrying out inspections prior to the start of commercial service, three people died, two were unharmed and escaped from the scene.[45]​.

• - On January 7, 2020, a cable that was being mounted on the pylons of the new Metrocable Line P "Line P (Metrocable de Medellín)"), fell on a gas station and the Autopista Norte "Autopista Norte (Medellín)"), leaving 7 people injured and considerable structural damage to the service station.[46]​.

• - On March 21, 2021, due to heavy rains, a landslide occurred next to the railway between the Acevedo stations "Estación Acevedo (SITVA)") and Madera "Estación Madera (Medellín Metro)"), causing delays in the service, Line A "Line A (Medellín Metro)") operated normally between La Estrella "La Estrella Station (Medellín Metro)" Medellín)") and Acevedo "Estación Acevedo (SITVA)"), while the remaining section towards Niquía "Estación Niquía (Medellín Metro)") operated with trains every 15 minutes and supported by Metroplús standard buses. Line A returned to operating normally until April 5. [47]​.

• - On June 16, 2022, due to heavy rains, a sinkhole was generated next to the railway between the Caribe stations "Estación Caribe (Medellín Metro)") and Tricentenario "Estación Tricentenario (Medellín Metro)"), separating Line A "Line A (Medellín Metro)") into two, trains operated between Niquía "Niquía Station (Medellín Metro)" Medellín)") - Acevedo "Estación Acevedo (SITVA)") and Caribe "Estación Caribe (Medellín Metro)") - La Estrella "Estación La Estrella (Medellín Metro)") with reduced frequencies, and requiring transfers to metro buses to make the complete trip, causing chaos in the mobility of the Metropolitan Area for a week.[48]​.

• - On February 3, 2022, two metro workers were hit by a train at Sabaneta Station "Sabaneta Station (Medellín Metro)") while carrying out routine inspections on the tracks.[49]​.

• - On August 28, 2023, a technical failure in a train leaving the Industriales Station "Estación Industriales (Medellín Metro)") during the afternoon rush hour caused chaos when passengers along Line A "Line A (Medellín Metro)") decided to walk along the tracks, ignoring the instructions of the operational staff, this caused service on Lines A "Line A (Medellín Metro)") and B "Line B (Medellín Metro)") were suspended indefinitely, along with Metrocable lines K "Line K (Medellín Metrocable)"), P "Line P (Medellín Metrocable)") and J "Line J (Medellín Metrocable)") until safe operation is guaranteed. The service resumed at 8:18 p.m.[50]​.

• - On November 2, 2023, two Line T trams collided with a public service bus and two motorcycles near the San José Stop "San José Station (Medellín Metro)"), 15 people were injured. According to witnesses, the tram that was heading Oriente-San Antonio omitted a stop sign.[51]​.

• - On June 26, 2024, a collision was recorded between two cable cars of the Metrocable Line K "Line K (Metrocable de Medellín)") on the eastern square of the Popular Station "Estación Popular (Metrocable de Medellín)"), which resulted in the lifting and immediate fall of one of the cabins onto the public road, in which 11 passengers were traveling. The accident left 20 people injured and one dead.[52]​.

• - On October 21, 2024, an incident occurred on Line C "Line C (Medellín Metro)") (or link line) after a short circuit occurred in the catenary while a train without service was passing, causing damage and the suspension of service on Line B "Line B (Medellín Metro)"), and reduced service on Line A "Line A (Medellín Metro)"), generating chaos in mobility for 4 hours. Hypotheses suggest that lightning struck the area during the weekend, or even on the same day of the incident. [53]​.

• - On April 20, 2025, damage was recorded in the catenary "Catenaria (railroad)") in the afternoon, near the Universidad station "Estación Universidad (Medellín Metro)"), due to a lightning strike that fell in the area, which forced the service of Line A "Line A (Medellín Metro)") to be provided only between Prado "Estación Prado (Medellín Metro)") and La Estrella "La Estrella Station (Medellín Metro)") for the rest of the day while the incident was resolved.[54]​ Full service on line A was restored early on Monday, April 21.[55]​.

• - On October 20, 2025, due to heavy rains, a sinkhole was generated in the railway between the stations Poblado "Estación Poblado (Medellín Metro)") and Aguacatala "Estación Aguacatala (Medellín Metro)"). Due to this, Line A "Line A (Medellín Metro)") operated between Niquía "Niquía Station (Medellín Metro)") - Poblado "Poblado Station (Medellín Metro)") and Aguacatala "Aguacatala Station (Medellín Metro)") - La Estrella "La Estrella Station (Medellín Metro)"), while the affected section (Poblado - Aguacatala) was supported by buses Metroplús registers. The integrated routes of the southern municipalities were integrating into the Poblado station, causing chaos in mobility.[56] Line A returned to operating normally as of October 26. [57]​.

• - Integrated Transportation System of the Aburrá Valley (SITVA).

• - Metrocable (Medellín) "Metrocable (Medellín)").

• - Metroplus.

• - Medellín Tram (Line T, Ayacucho Tram).

• - Transportation basins of the Aburrá Valley.

• - Annex:Medellín Metro Stations.

• - Annex:Medellín Metrocable Stations.

• - Official website of the Medellín Metro.

• - Official website of the Latin American Association of Metros and Subways - ALAMYS.

• - on YouTube.

• - Medellín Metro in X (formerly Twitter).

• - Medellín Metro on Facebook.

• - Medellín Metro on Instagram.

• - On November 30, 1995, Line A "Line A (Medellín Metro)" was inaugurated.

• - On February 29, 1996, Line B "Line B (Medellín Metro)" was inaugurated.

• - On February 29, 2008, the expansion of the Itagüí Station "Itagüí Station (Medellín Metro)" was inaugurated.

• - On May 16, 2008, the expansion of the Niquía Station "Niquía Station (Medellín Metro)" was inaugurated.

• - In 2009, the contract was signed between the Medellín Metro and the company Construcciones y Auxiliar de Ferrocarriles for the manufacture and delivery of 38 new trains that complement the system.

• - In 2011, the first CAF trains (second generation) were delivered to the Metro.

• - On September 17, 2012, the extension to the south and the Sabaneta stations "Estación Sabaneta (Medellín Metro)") and La Estrella "Estación La Estrella (Medellín Metro)") were inaugurated.[14]​.

• - In 2019, the modernization process of the company's 126 first-generation cars begins.

• - On February 28, 2019, Line M opens.

• - In 2023, pre-construction of the future Line E "Line E (Medellín Metro)") or Metro de la 80 begins.

• - At the end of 2023, the modernization of the system's first generation trains ends.

Lines

The system consists of two lines in operation. Each line is identified with a letter and a color. They were inaugurated between 1995 and 1996, it has a total of 27 stations and 34.5 km in length.[15]​.

The following table lists the name, the distinctive color, the length, the terminal stations, the capacity, the year of opening, the sum of stations and the number and type of

vehicles:.

Line A is the inaugural line of the network and is the main axis of the SITVA, its course is north-south and vice versa. The complete route of the line, identified with the color blue, takes approximately 42 minutes.[15]​.

Its first section, between the Niquia station "Estación Niquía (Medellín Metro)") and the Poblado station "Estación Poblado (Medellín Metro)"), was inaugurated on November 30, 1995; on September 30, 1996.[16]​.

Currently, the line has an extension of 25.8 km and 21 stations distributed in the Metropolitan Area of ​​​​the Aburrá Valley. After this intersection is the first elevated station: the Universidad station "Estación Universidad (Metro de Medellín)"), located in the district of Medellín. Line A continues elevated in the subsequent stations, crossing the district, until the Expósitos station "Estación Expósitos (Metro de Medellín)") where it begins the descent until touching ground at the Industriales station "Estación Industriales (Metro de Medellín)") and reconnects with the river. It then turns west to cross, for the second time, the Medellín River between the stations Ayurá "Estación Ayurá (Metro de Medellín)") and Envigado "Estación Envigado (Metro de Medellín)"), both in the municipality of Itagüí. Line A crosses the Medellín River for the third and last time between the stations Itagüí "Estación Itagüí (Medellín Metro)") and Sabaneta "Sabaneta Station (Medellín Metro)") located in the homonymous municipality "Sabaneta (Colombia)"). This north-south route ends at the La Estrella terminal station "Estación La Estrella (Medellín Metro)"), located within the limits of the municipality of Sabaneta.

Line A is the most used line of the metro. This is because, in addition to serving a large part of the population of the metropolitan area, it runs through the main economic, commercial and cultural axis of the Medellín district, locating various urban landmarks along its route, such as the University of Antioquia, the Berrío Park, the La Alpujarra Administrative Center and, finally, the Plaza Mayor Medellín Conventions and Exhibitions "Plaza Mayor (Medellín)"), among others.

Line B is also an integral part of the SITVA, its course is in a central-western direction and vice versa. The complete route of the line, identified with the orange color "Orange (color)"), takes approximately 10.5 minutes.[15]​.

It was put into operation on February 29, 1996. Currently, the line has an extension of 5.5 km and seven stations that exclusively serve the district of Medellín.[15] Its route begins in the center of the city, specifically at the San Antonio interconnection station "Estación San Antonio (Metro de Medellín)"). It continues its course towards the west of the city through an elevated viaduct, passing over 46th Street towards the Cisneros station "Estación Cisneros (Medellín Metro)"), located at the intersection of Avenida Ferrocarril and 46th Street; It continues west over the Medellín River, to then take a course parallel to the bed of the La Hueso ravine, passing through the Suramericana stations "Estación Suramericana (Medellín Metro)"), Estadio "Estación Estadio (Medellín Metro)"), Floresta "Estación Floresta (Medellín Metro)") and Santa Lucía "Estación Santa Lucía (Medellín Metro)") in an elevated manner.

Finally, it passes at surface level to end its journey at the San Javier station "Estación San Javier (Metro de Medellín)"), which allows the transfer to line J "Line J (Metrocable)") of the Metrocable.

Seasons

The Medellín Metro network (Lines A and B) is made up of 27 railway stations, distributed in five municipalities of the Aburrá Valley: 19 in Medellín, three in Bello "Bello (Antioquia)"), two in Itagüí, two in Sabaneta "Sabaneta (Colombia)") and one in Envigado.

Since its planning, the Medellín Metro was conceived as the backbone of SITVA,[20] strongly connected to the component parts of the system. The first transportation method to be integrated into the Medellín Metro was the Metrocable de Medellín cable car system, when on August 7, 2004, line K "Line K (Metrocable de Medellín)") was inaugurated, making Medellín the first city in the world to implement a cable car system as a full-time means of public transportation, in addition to using it with social projection.[21]​.

Later, on December 22, 2011, when line 1 "Line 1 (Metroplús)") of the Metroplús came into operation, it joined the Medellín Metro as a new component of the city's mass transportation network.

When the Metroplús feeder routes, known locally as SIT "SIT (Medellín)") come into operation, a new element is added to the integration of transportation, with the metro as a structuring axis.

In 2011, the EnCicla public bicycle system began, and the Metro, by having certain stations for bicycles, consolidated its predominant position as a pillar of SITVA.

The last method of transportation interconnected with the metro is the T line "Line T (Medellín Tram)") known as the "Ayacucho Tram", which was inaugurated on October 15, 2015; but it began operations on November 30,[22]​.

The rolling stock of the Medellín Metro is powered by electrical energy, through a flexible aerial catenary#Flexible_aérea_catenary "Catenary (railway)"). The track gauge used is 1435 mm (4' 8"), which is the international gauge.[1]​.

The Medellín Metro has a fleet of 80 trains in total, divided into 2 lots:.

• 1 lot: Manufactured by the MAN SE-Siemens company in 1989/1990; They are the oldest trains in the system. A total of 42 trains were produced, which began a modernization process since 2019, which aimed to repower and fine-tune the most important components of the wagons (along with other systems), as well as the integration of new components that would allow these trains to be adapted to the most current railway technology standards. The modernization ended in 2023, with the last two units intervened, ending a process that lasted almost 5 years.

• 2nd batch: Manufactured by Construcciones y Auxiliar de Ferrocarriles (CAF) in 2009 (first batch) and 2017 (second batch), they are the newest trains in the system. 38 trains were produced to complement the aging fleet of MAN trains.

By 2011, the company Metro de Medellín Ltda. had 42 trains with three cars each - for a total of 126 cars or wagons - that provide commercial service for lines A "Line A (Medellín Metro)") and B "Line B (Medellín Metro)").[23]​.

In 2009 Metro de Medellín Ltda. signed with the Spanish company Construcciones y Auxiliar de Ferrocarriles (CAF), the purchase of 12 trains each made up of three cars, which is equivalent to a total of 36 new cars.[23]​[24]​.

The trains serve the service to the new Sabaneta terminal station "Estación La Estrella (Medellín Metro)"), in the municipality of the same name, of the extension of line A. This will improve the frequency of the trains on the rest of the lines and will meet the increase in user demand. The total investment was approximately $211,000 million Colombian pesos, which have been paid with own resources and with a loan from the Colombian banks Banco de Occidente "Banco de Occidente (Colombia)") and Banco AV Villas, reported the Antioquia company.[23]​[24]​.

Another $57 billion pesos will also be invested in complementary developments to put new vehicles into circulation.[24]​.

The Spanish firm has built trains for the subways of Santiago de Chile, São Paulo, Mexico City, Madrid, Barcelona, ​​Bilbao, Washington, London, Rome and Hong Kong, among others.[23]​.

Other large investments will be supported mostly with the Metro's own resources and seek to extend and improve the quality of life among all the inhabitants of the Aburrá Valley.

• - The construction of the future Line E or Metro of 80 is currently being carried out. This new line will operate with "light metro" type vehicles (similar to the tram, but with its own track), it will have 17 stations and will run mainly along Avenida 80, from the Caribe station "Estación Caribe (Medellín Metro)") to the Aguacatala station "Estación Aguacatala (Medellín Metro)") in the south of the city. It is estimated that it will be operational in 2028.

• - In 2021, the Medellín mayor's office signed an agreement to begin pre-feasibility and feasibility studies for a new railway line, which is planned to be 100% underground, and whose letter would be line S.[37][38][39]​.

• - On May 21, 2024, the Medellín Metro, together with the Mayor's Office of Medellín and the Government of Antioquia, announced the purchase of 13 new trains for the system and a re-profiling machine. It is estimated that these new vehicles will be operational in 2027, and it is possible that they will be manufactured and built in the Medellín Metro Workshops.

The Medellín Metro, along with the Santiago de Chile Metro, are the only Ibero-American metro that are not subsidized by local governments in their operation. In addition, the Medellín Metro is self-paying in the operation and maintenance of the system. The Metro's ratings also include the subsidies it offers (up to 50% in relation to the rate approved by the Metropolitan Authority), to users who, due to their socioeconomic, physical or work condition, are considered to enjoy this benefit; This is the case of students, seniors, and people with reduced mobility.

The Medellín Metro is one of the only three subways in the world that generates operating surpluses. The commercial operation of the Metro - transportation service, leasing and exploitation of advertising spaces - generates operational surpluses before depreciation and provisions (EBITDA). As of December 31, 2007, these surpluses were COP$47,178 million pesos. These positive results, which have remained at levels above 20% over the last five years, confirm the company's operational profitability.

In 2007 the company received certification for Colombian Technical Standards ISO 14001:2004, Environmental Management System, and OHSAS 18001:1999, Occupational Health and Safety Management System. Thus, the Comprehensive Metro Management System was complemented with the ISO 9001:2000 standard, Quality Management Systems, all of which makes the Company the only one certified in these three standards among the members of the Latin American Association of Metros and Subways (ALAMYS). This international positioning made it possible to begin in 2007 the exploitation of railway knowledge, unique in the country and recognized abroad by companies from America and Europe, with which alliances and commercial agreements began to be established that will represent an important source of income for the company.

In 2007 the Metro was a special guest at 1. International Congress on Comprehensive Safety in Metropolitan Railways held in Madrid, Spain,[40]​ with the presence of three hundred specialists from 17 countries, as the organizers of the event wanted to learn first-hand about the safety system implemented by the Medellín Metro, which enjoys a good name among the subways in Latin America.

Duff & Phelps de Colombia S.A. assigned in 2008, for the third consecutive year, the "A+" (A plus) rating to the corporate debt of the Empresa de Transporte Masivo del Valle de Aburrá (ETMVA)-Metro de Medellín Ltda. In addition, the World Bank has recognized the Medellín Metro for its positive balance sheets, which since 2001 have grown significantly.[41]​.

• - On October 2, 1996, a Line A train "Line A (Medellín Metro)") derailed while making return maneuvers at Poblado Station "Poblado Station (Medellín Metro)"), no injuries were reported and the train was taken to the workshops shortly after to be inspected and repaired.[42]​.

• - On January 12, 2014, a retaining wall on the left bank of the Medellín River between the Ayurá stations "Estación Ayurá (Medellín Metro)") and Envigado "Estación Envigado (Medellín Metro)") of Line A "Line A (Medellín Metro)") collapsed due to high rainfall and lack of maintenance in the pipeline, the service was suspended between the stations Aguacatala "Aguacatala Station (Medellín Metro)") and La Estrella "La Estrella Station (Medellín Metro)") for 10 days.[43]​.

• - On March 13, 2014, there was again a landslide on a retaining wall of the Medellín River between the Aguacatala stations "Estación Aguacatala (Medellín Metro)") and Ayurá "Estación Ayurá (Medellín Metro)") of Line A "Line A (Medellín Metro)"), paralyzing 6 stations in the south and causing chaos in mobility, the service was suspended for 11 days.[44]​.

• - In the early hours of July 22, 2018, a group of five graffiti artists who were vandalizing a train parked between the Poblado stations "Estación Poblado (Medellín Metro)") and Aguacatala "Estación Aguacatala (Medellín Metro)"), were run over by a train carrying out inspections prior to the start of commercial service, three people died, two were unharmed and escaped from the scene.[45]​.

• - On January 7, 2020, a cable that was being mounted on the pylons of the new Metrocable Line P "Line P (Metrocable de Medellín)"), fell on a gas station and the Autopista Norte "Autopista Norte (Medellín)"), leaving 7 people injured and considerable structural damage to the service station.[46]​.

• - On March 21, 2021, due to heavy rains, a landslide occurred next to the railway between the Acevedo stations "Estación Acevedo (SITVA)") and Madera "Estación Madera (Medellín Metro)"), causing delays in the service, Line A "Line A (Medellín Metro)") operated normally between La Estrella "La Estrella Station (Medellín Metro)" Medellín)") and Acevedo "Estación Acevedo (SITVA)"), while the remaining section towards Niquía "Estación Niquía (Medellín Metro)") operated with trains every 15 minutes and supported by Metroplús standard buses. Line A returned to operating normally until April 5. [47]​.

• - On June 16, 2022, due to heavy rains, a sinkhole was generated next to the railway between the Caribe stations "Estación Caribe (Medellín Metro)") and Tricentenario "Estación Tricentenario (Medellín Metro)"), separating Line A "Line A (Medellín Metro)") into two, trains operated between Niquía "Niquía Station (Medellín Metro)" Medellín)") - Acevedo "Estación Acevedo (SITVA)") and Caribe "Estación Caribe (Medellín Metro)") - La Estrella "Estación La Estrella (Medellín Metro)") with reduced frequencies, and requiring transfers to metro buses to make the complete trip, causing chaos in the mobility of the Metropolitan Area for a week.[48]​.

• - On February 3, 2022, two metro workers were hit by a train at Sabaneta Station "Sabaneta Station (Medellín Metro)") while carrying out routine inspections on the tracks.[49]​.

• - On August 28, 2023, a technical failure in a train leaving the Industriales Station "Estación Industriales (Medellín Metro)") during the afternoon rush hour caused chaos when passengers along Line A "Line A (Medellín Metro)") decided to walk along the tracks, ignoring the instructions of the operational staff, this caused service on Lines A "Line A (Medellín Metro)") and B "Line B (Medellín Metro)") were suspended indefinitely, along with Metrocable lines K "Line K (Medellín Metrocable)"), P "Line P (Medellín Metrocable)") and J "Line J (Medellín Metrocable)") until safe operation is guaranteed. The service resumed at 8:18 p.m.[50]​.

• - On November 2, 2023, two Line T trams collided with a public service bus and two motorcycles near the San José Stop "San José Station (Medellín Metro)"), 15 people were injured. According to witnesses, the tram that was heading Oriente-San Antonio omitted a stop sign.[51]​.

• - On June 26, 2024, a collision was recorded between two cable cars of the Metrocable Line K "Line K (Metrocable de Medellín)") on the eastern square of the Popular Station "Estación Popular (Metrocable de Medellín)"), which resulted in the lifting and immediate fall of one of the cabins onto the public road, in which 11 passengers were traveling. The accident left 20 people injured and one dead.[52]​.

• - On October 21, 2024, an incident occurred on Line C "Line C (Medellín Metro)") (or link line) after a short circuit occurred in the catenary while a train without service was passing, causing damage and the suspension of service on Line B "Line B (Medellín Metro)"), and reduced service on Line A "Line A (Medellín Metro)"), generating chaos in mobility for 4 hours. Hypotheses suggest that lightning struck the area during the weekend, or even on the same day of the incident. [53]​.

• - On April 20, 2025, damage was recorded in the catenary "Catenaria (railroad)") in the afternoon, near the Universidad station "Estación Universidad (Medellín Metro)"), due to a lightning strike that fell in the area, which forced the service of Line A "Line A (Medellín Metro)") to be provided only between Prado "Estación Prado (Medellín Metro)") and La Estrella "La Estrella Station (Medellín Metro)") for the rest of the day while the incident was resolved.[54]​ Full service on line A was restored early on Monday, April 21.[55]​.

• - On October 20, 2025, due to heavy rains, a sinkhole was generated in the railway between the stations Poblado "Estación Poblado (Medellín Metro)") and Aguacatala "Estación Aguacatala (Medellín Metro)"). Due to this, Line A "Line A (Medellín Metro)") operated between Niquía "Niquía Station (Medellín Metro)") - Poblado "Poblado Station (Medellín Metro)") and Aguacatala "Aguacatala Station (Medellín Metro)") - La Estrella "La Estrella Station (Medellín Metro)"), while the affected section (Poblado - Aguacatala) was supported by buses Metroplús registers. The integrated routes of the southern municipalities were integrating into the Poblado station, causing chaos in mobility.[56] Line A returned to operating normally as of October 26. [57]​.

• - Integrated Transportation System of the Aburrá Valley (SITVA).

• - Metrocable (Medellín) "Metrocable (Medellín)").

• - Metroplus.

• - Medellín Tram (Line T, Ayacucho Tram).

• - Transportation basins of the Aburrá Valley.

• - Annex:Medellín Metro Stations.

• - Annex:Medellín Metrocable Stations.

• - Official website of the Medellín Metro.

• - Official website of the Latin American Association of Metros and Subways - ALAMYS.

• - on YouTube.

• - Medellín Metro in X (formerly Twitter).

• - Medellín Metro on Facebook.

• - Medellín Metro on Instagram.