Here's what happens when cities ban cars

Berlin's Car-Reduced Gambit: A Test for Urban Mobility

The average Berliner lost 60 hours to traffic congestion last year, a statistic that has galvanized a citizens' movement to fundamentally transform the German capital's relationship with the automobile. Now, a determined group of campaigners is pushing for a ballot initiative that could see the city's historic center reimagined as a car-reduced zone, setting the stage for one of Europe's most ambitious urban experiments yet.

A Push for 'Car-Reduced' Streets

At the heart of the movement is a simple but bold proposal: reclassify all streets inside Berlin's 37-kilometer circular railway—the S-Bahn Ring—as 'car-reduced.' Under the plan, private motorized vehicles would only be permitted inside this zone under specific circumstances, such as for emergency services, large commercial deliveries, or transporting individuals with restricted mobility. Individual Berliners would each be permitted to drive their private car in the city center up to 12 times a year, as reported by all three of our sources.

Oliver Collmann, an engineer who left his job working on self-driving car software to join the campaign, sees this not as a ban but as a rebalancing. "Berlin is one of the few European capitals now that are still very car centric in the traffic policy," he is quoted as saying. "Cars have about 75% to 80% of the space that's available within the city." He argues the initiative is not anti-car but rather a move against "the overuse of cars and the use of oversized cars in the city area."

The campaign, which is collecting signatures until May 8, needs support from at least 7% of eligible voters to force a referendum. The deadline looms as a critical test for a city long known for its alternative culture and urban experimentation.

Learning from Oslo and Paris

The Berlin initiative draws clear inspiration from other European capitals. Oslo, which implemented its car-free program in 2017, reported that traffic within the program area had declined by a notable 28% by 2020. More strikingly, the 2020 evaluation also showed a rise in active mobility: walking and cycling in Oslo increased from 36% in 2014 to 46% in 2023, according to the same report. The Norwegian capital has also embraced electric vehicles, with 98.1% of new cars registered this year being zero-emission models, a figure that illustrates a broader shift in consumer behavior.

Paris offers another data point. At the end of 2024, the French capital introduced limited traffic zones in major parts of the city center, building on years of efforts to reduce car dominance and reclaim public space for pedestrians and cyclists.

Critics Argue for a Carrot, Not a Stick

While the benefits cited by campaigners—cleaner air, less noise, more green space—are hard to dispute, the approach is not without its detractors. Oliver Lah, an adjunct professor in spatial planning at the Blekinge Institute of Technology in Sweden, cautions against a purely prohibitive strategy. "Providing something that people actually want—that's what helps," he told the sources.

Lah's critique points to a more complex reality: that simply restricting cars may not be as effective as offering attractive alternatives. He advocates for a mix of investments in public transport, cycling infrastructure, and urban design that makes leaving the car at home the easy choice, rather than a forced one. He suggests a 60-hour stakeout of a traffic jam as a hook, but his underlying point is that lasting change comes from desire, not just regulation.

A Crossroads for the German Capital

As Berlin grapples with its identity as a hub of innovation and its status as a car-centric metropolis, the referendum could mark a turning point. The campaign's success will depend on overcoming political hurdles and a skeptical public accustomed to the convenience of private vehicles.

Supporters are quick to point out that the 'car-reduced' label is about creating space for life, not just restricting it. They envision a center where narrow streets give way to tree-lined promenades, where children can play without the constant hum of traffic, and where the air is cleaner and the city quieter. The proposal would see a significant shift, with the space currently dedicated to moving and storing vehicles repurposed for residents and commerce.

In contrast to Berlin's governance-by-citizens' initiative approach, Paris's 'Ville du quart d'heure' (15-minute city) model has shown that walkable city designs can lead to lower per-capita transport emissions. This paradigm, which has seen schoolyards turned into green spaces and lanes dedicated to bicycles and pedestrians, offers a contradictory but compelling template for what Berlin might become.

What Happens Next

The coming weeks will be critical. With the May 8 deadline approaching, campaigners are scrambling to collect the necessary signatures. If successful, the bill would go to Berlin's House of Representatives and could eventually lead to a city-wide vote. The outcome will not only determine the future of Berlin's streets but also serve as a bellwether for how modern European cities can reconcile the contradictions of urban living in the 21st century—where the streets belong to everyone, and not just to the car.