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United in Diversity
Tuesday, Apr 29, 2025

The Unseen Expenses of Car-Free Zones in Europe

The Unseen Expenses of Car-Free Zones in Europe

EU auditors report that low-emission zones decrease pollution in city centers while increasing noise and emissions in the surrounding areas.
Efforts to create more sustainable and serene urban environments in Europe are experiencing unexpected consequences, according to a report from the European Court of Auditors (ECA).

While initiatives like car-free zones and low-emission areas in cities such as Athens, Barcelona, and Kraków have successfully reduced air and noise pollution within their confines, neighboring districts are facing increased traffic and environmental disruptions.

The ECA report emphasizes how strategies intended to mitigate urban pollution often merely shift the issue instead of solving it.

In Barcelona, for example, the establishment of 'superblocks'—areas prioritizing pedestrians and limiting car access—resulted in lower emissions and noise levels within these zones.

Yet, noise and pollution rose significantly on surrounding streets as traffic was redirected.

Unexpectedly, noise levels within the car-free zones sometimes increased due to the growth of nightlife and commercial activities, including bars and restaurants.

One superblock in Barcelona saw a thirty-three percent uptick in commercial activity, leading to complaints about nighttime noise.

The report highlights the ongoing issue of urban noise pollution, which the ECA describes as 'often overlooked' despite its major health impacts.

Long-term noise exposure has been associated with cardiovascular issues, chronic stress, and other health conditions.

While vehicle traffic remains the main source of noise in cities, pedestrian areas are also affected by noise from human activities.

The European Green Deal aims to cut down the number of EU citizens chronically exposed to environmental noise by 2030. However, the ECA cautions that progress is challenging to track due to inconsistent monitoring and delayed reporting among member states.

Although the ECA estimates that populations exposed to noise could decrease by nineteen percent by the decade's end, this number may also increase by up to three percent if current data gaps and policy shortcomings continue.

The findings indicate a larger challenge for urban policymakers: tackling pollution in a comprehensive manner instead of in isolated parts.

'While these zones hold promise, their success is limited by displaced traffic and inadequate monitoring,' the report states.

As Europe moves forward with sustainable urban development, the ECA urges improved coordination and holistic solutions that consider the wider impact of initiatives like low-emission zones.

Until then, the vision of tranquil, car-free urban living remains, for many, elusive.
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