Everyday millions of passengers circulate through the city public transport system. The constant flow of people never falls. Complementing the 12 underground lines, there are taxis, metro buses, trolleybuses and minibuses called “peseros”, as many years ago the cost for one way ticket was only one peso! The city is very well connected through its main arteries by a public transport system that works 365 days a year. This transport system, had to adapt to an ever growing population and the constant demand for new routes. The underground, for example, revitalised areas that were deprived from any means of transportation and therefore commercial developing. The great influx of people encouraged the expansion of small business, in and outside the underground entrances and along its many corridors. What’s more, in many stations the commuter can enjoy a vast display of public art that goes from murals exalting Mexican history to more contemporary photo exhibitions. Once inside the waggons independent sellers will offer a wide range of products in case you may forget to buy something, contributing in this way to enhance the dynamic between the offer and demand. Hence, the transport system has fostered a micro-economy that let people with low resources trade along the lines and at the same time bridged the gap between distant neighbourhoods. On the streets, car drivers have to deal with an endless traffic jam, trying to get home in the dusk; While under the pavement a huge microcosms of people coming and going continue bursting well after the sun has come down.