Montevideo's cycling policy, measured against Buenos Aires and Santiago

Three capitals, three different problems. Montevideo runs its cycling policy under a single authority: one departmental government for 1.3 million people and every kilometer of bike lane in the city. Buenos Aires proper is a city of 3.1 million — around 15 million counting the wider metro area — with a city government that has treated cycling as transport policy for over a decade. Greater Santiago, in Chile, spreads 7.4 million people across more than thirty self-governing comunas — boroughs, each with its own mayor, its own budget and its own ideas about bike lanes. Before comparing a single number, it helps to hold those three shapes in mind, because most of what follows comes down to them.

Buenos Aires: the early mover

By the city's own count, Buenos Aires has around 310 km of cycling infrastructure as of early 2026. The number matters less than what sits behind it: a public bike system, Ecobici, with roughly 380 stations and a basic plan that costs residents nothing — four half-hour trips every weekday — and a modal shift you can actually measure. In 2009, cycling accounted for 0.4% of trips in the city; by 2025 it was around 7%. Seventeen years of sustained building, plus a free way in for anyone curious, moved cycling from a rounding error to a visible slice of how the city gets around.

Santiago: scale without a standard

On paper, Greater Santiago has the largest network of the three: around 480 km, according to the regional government's 2024 master-plan documents. The same documents carry the caveat that undercuts the headline — by the regional government's own assessment, about 80% of those kilometers don't meet the transport ministry's current technical standard. Much of the network predates the standard, and much of it was built comuna by comuna, to whatever each borough could fund and design at the time. That fragmentation shows up everywhere: the quality of your bike lane depends on which side of a municipal boundary you're riding. The public bike system tells the same story. Bike Itaú — a paid service — pulled out of the central comuna of Santiago in March 2025 and now operates only in three boroughs: Providencia, Ñuñoa and Las Condes. The regional government's answer is a master plan: 820 km across 34 comunas by 2035, built to a single standard. Whether a fragmented metro area can deliver a unified network is, fairly stated, the open question of Santiago's next decade.

Montevideo: small, centralized, incomplete

Montevideo's network is the smallest of the three in every sense: 77.3 km as of September 2024, by the Intendencia's own count, taking together its ciclovías, bicisendas and a ciclocalle. Per capita it also trails both neighbours. What it has instead are structural advantages the other two would envy. One government decides for the whole city, so every kilometer built belongs to one plan rather than thirty. And the city owns a geographic asset neither Buenos Aires nor Santiago can match: the rambla, some 22 km of continuous coastal avenue along the Río de la Plata. Honesty requires the split, though — about 7.7 km of it, between the Escollera Sarandí and Prefectura Pocitos, has protected bike infrastructure; the remaining 14 or so km are ridden in mixed traffic. The clearest weak point is just as concrete: Montevideo is the only one of the three capitals with no public bike system at all. Movete, launched in 2014 with eight stations and eighty bikes in the old city, wound down after a 2019 relaunch tender drew no bids, and nothing has replaced it since.

The scoreboard

• Network size. Santiago ~480 km (with the quality caveat above) · Buenos Aires ~310 km · Montevideo 77.3 km. All three figures are each government's own count.
• Network per 100,000 inhabitants. Buenos Aires ~9.9 km · Santiago ~6.5 km · Montevideo ~5.9 km. Our arithmetic, from the official network and census figures.
• Public bikes. Buenos Aires: running, free basic tier · Santiago: running, paid, three boroughs · Montevideo: none since 2019.
• Governance. Montevideo: one authority · Buenos Aires: one city government · Santiago: thirty-plus comunas, coordination by master plan.
• Distinctive asset. The rambla — 22 km of coast, roughly a third of it protected so far.

What the comparison is actually for

Read this way, the ranking is less interesting than the lessons. Buenos Aires shows that modal share follows patient building plus a public fleet that costs nothing to try. Santiago shows that kilometers alone guarantee nothing — a network is only as good as its weakest borough. Montevideo starts from the back of this field on size and on per-capita reach, and it is the only city on the list that asks newcomers to bring their own bike. But it holds the two cards that are hardest to acquire later: a single authority that can plan the whole city at once, and a coastline that could carry the city's defining cycling corridor, if the protected stretch keeps extending east. The thing to watch is whether the next mobility plan treats a public bike system as the missing piece it plainly is.