Friday, April 24, 2026
Daniela Estrada* - Tierramérica
- A new public transportation system that was intended to curb air pollution in the Chilean capital and improve quality of life has prompted hundreds of protests and the worst crisis yet for the administration of Michelle Bachelet. But what is it about the controversial Transantiago project that doesn’t work?
Inaugurated Feb. 10, Transantiago modified transportation routes, cut its bus fleet from 9,000 to 5,000, and introduced electronic fare payment.
The project emerged during the administration of former president Ricardo Lagos (2000-2006) and was launched by the Bachelet government in order to improve the quality of life of the 6.5 million people – nearly half of the national population – who live in Santiago. Transantiago was to cut travel time and eliminate older polluting vehicles in one of the Latin American cities with worst air quality.
But serious problems have caused quakes that have driven Bachelet’s popularity to its lowest level, prompting her to fire four ministers and issue an apology to the public. Furthermore, the much-touted environmental benefits of Transantiago are not yet clear.
“For me, Transantiago has meant anxiety, irritability and panic,” summarised María Ester Silva, a 53-year-old secretary, in a conversation with Tierramérica.
The new system, inspired by Bogotá’s successful Transmilenio, converted Santiago’s main avenues into a network of “trunk” routes where modern, articulated buses circulate. Along those routes there are transfer stations, connecting passengers arriving in smaller buses from distant neighbourhoods.
The government admits that it needs 500 more buses than the 5,100 that are budgeted for. But for now it is using reconditioned older buses – and now “pirate” (unlicensed) vehicles have appeared.
The authorities should be monitoring the transport companies to make sure they are meeting their timetable and route requirements, using video cameras, inspectors and heavy fines for violators.
But the computer system for tracking the fleets doesn’t work very well, there are bus stops and segregated lanes yet to be built, and not all of the vehicles promised by the bus companies are out on the streets. The private firms say the articulated buses are very delicate, with frequent breakdowns, and repairs take time.
The city’s 87-km subway was incorporated into Transantiago as a trunk route.
“I’m scared to get on the subway because it is always full and I’m claustrophobic. My mother is 73 and she’s also scared of it because she’s had two hip operations,” Silva said.
The transportation authorities have asked asthmatics, pregnant women, adults travelling with children, and people with hypertension or heart problems not to use the subway, which used to carry four passengers per square metre, but now packs in seven per square metre.
Two people have died on the subway since Transantiago took effect – from heart attack and stroke.
The air in Santiago is filled with toxic substances because the surrounding Andes and coastal mountains keep the wind from blowing air pollution away.
In 1996 the capital was declared saturated with particulate material PM10, ozone and carbon monoxide, and at risk for the concentration of nitrogen oxides. The 1998 Plan for Prevention and Atmospheric Decontamination included modernising public transportation, but did not produce the hoped-for results, according to two foreign-led audits.
Gonzalo Parra, an administrative worker, 30, told Tierramérica that he now takes three “micros” (buses) and the subway to get to his job. Before, he rode just one bus. “Transantiago was implemented in a rushed and chaotic way,” he said.
The government quashed hundreds of protests in neighbourhoods that Transantiago doesn’t reach. Officials say that many outlying areas have grown quickly in the last few years, while the transportation network was designed in 2003.
On Mar. 26, Bachelet apologised to the poorer segments of the population in particular, and dismissed transportation minister Sergio Espejo and other ministers.
Nevertheless, not all is bad news for Transantiago.
The new buses meet the EURO III international emissions standards and they run on cleaner diesel fuel, with a relatively low 50 parts per million sulphur.
Bicycle routes and new technology acquired for measuring bus emissions were included in the project, thanks to a contribution from the Global Environment Facility, an independent financial organisation that provides grants to developing countries for globally beneficial environmental initiatives.
“By going from 9,000 to 5,000 buses, pollution was substantially reduced,” Rodrigo Pizarro, head of the non-governmental Terram Foundation, told Tierramérica.
But if individual car use keeps rising, as it has in recent weeks, in the long term Transantiago could turn out to be a negative, he said.
On Feb. 23, the Health Ministry released a preliminary study that found a “downward trend” for PM10. Although there are no official measures of noise pollution available, the general perception is that it also has decreased. The ministry promised more detailed reports for mid-year.
Sources from the government’s National Environment Commission told Tierramérica that the true impact of Transantiago will be seen when it is completely up and running.
(*Originally published by Latin American newspapers that are part of the Tierramérica network. Tierramérica is a specialised news service produced by IPS with the backing of the United Nations Development Programme and the United Nations Environment Programme.)