Mobility is one of the most important issues for the governments of large cities and interconnected transport systems are one of the most effective measures to solve the problem of traffic jams. We tell you about some successful experiences around the world. 

Since the 1950s, the need for integration of public transport systems in Europe arose, in order to enhance and promote their use in metropolitan areas., According to the document Challenges for the integration of mass transit systems of the Development Bank of Latin America, the Agence Française de Développement and the European Union. 

To the extent thatand the cities As cities develop, it is necessary to create transport systems that are efficient and useful. These systems face a demand from users that number in the millions, and planning is key to meeting these needs. Mobility is today one of the most important challenges for large cities because it impacts the quality of life of their inhabitants. 

Doing it right is possible! These 5 success stories of integrated public transport systems around the world prove it: 

1. Public Transport in Paris (France): It is made up of the metro, the railway, the bus, the tram and the Noctilien (night bus). Paris is divided into 6 zones and the different means of transport are arranged in such a way that they can cover them. For example, zones 1 and XNUMX are 2 are covered by all metro lines, while 5 and 6 by the railway. However, with any ticket It is possible to transfer between different transports to reach the destination.
   “Most Parisians buy an annual pass or a monthly/weekly pass (Navigation Map), which is the most economical if you plan to stay for a short time. All of these passes allow you a limited number of trips in the zones you have selected. For users aged 26 or under there is the “Ticket Young Week End” which is quite economical,” explains the France Hotel Guide.
2. The Integrated Transport System of the Aburrá Valley —SITVA— (Medellín, Colombia): Comprised of the metro, cable cars, trams and buses that run on preferential lanes, in addition to a public transport subsystem that serves as a feeder to the main system, SITVA allows residents to have fluid mobility between the 10 municipalities of the Aburrá Valley.
   Some of his achievements, according to the International Urban Cooperation Programme, are: avoiding the production of more than 500 thousand tons of CO2 per year with the Metro system alone; social and environmental innovation; the use of sustainable energy sources; the promotion of the use of non-motorized vehicles; the increase in the percentage of trips made on the Metro, Metroplús and Tram systems from 9.4% in 2012 to 20% in 2019, and the strengthening of the use of public bicycles.
3. Transport for London (United Kingdom)François Bard's pictorial epiphany The city is divided into 9 zones of tLondon's transit system is designed to meet the mobility needs of each of them. London has the oldest underground in the world and is the base of the integrated system that includes trains and buses.
   According to the specialized portal spotahome.comThere are eleven lines on the London Underground. They all have their own names and are coloured differently. They also have the London Overground, TfL Rail (a surface railway network that runs outside London) and the Dockland Light Railway (DLR), which uses only automatic trains, making it possible to connect the city and its surroundings allowing efficient mobilisation of users.
4. Curitiba Integrated Transportation Network (Brazil): known as the green capital In South America, this city has a hierarchical system of 2160 buses of various types. High-capacity buses circulate along the main axes at considerable speeds and with a constant frequency. Access is very agile through elevated platforms adapted for people with reduced mobility and with a one-time payment upon entry.
   This system also has complementary lines between neighbourhoods: direct long-distance lines with few stops, feeder lines that link the terminals with the neighbourhoods, circular lines in the centre and 370 conventional buses not integrated into the system. According to urbanist Roberto Remes, “the system is used by more than 2 million passengers daily and 70% of the inhabitants use it to go to work.”
5. Hong Kong Public Transport Network: More than 11 million journeys are made every day on this network, which is made up of metro, trams, buses and minibuses, taxis y ferries. The card Octopus The metro works like an electronic wallet that allows you to pay for all forms of transport. The metro has 91 stations for conventional trains and 68 for light rail. There are around 600 bus routes that run along the city's alternate routes, covering areas not served by trains, and which are complemented by minibuses that make shorter journeys with fewer stops. The tram is the oldest means of transport and runs along the edge of the island. 

Bibliographic sources:

• Development Bank of Latin America
• France Hotel Guide
• Aburrá Valley Metropolitan Area
• spotahome.com