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Transforming Suburban Mobility in Vallirana with On-Demand Minibuses

Implementation Date

August 1, 2018

By

Vallirana City Council

City

Vallirana

story image

Description

Vallirana, a suburban municipality of about 15,000 residents in the mountainous outskirts of Barcelona, introduced a system that allows passengers to request shared rides in real time via a mobile app or by phone, dynamically pooling those with similar origins and destinations. Within months of launch, ridership increased by 277%, service levels improved 5.7× to reach underserved areas, and passenger density doubled per kilometer traveled. Between 25–40% of bookings were made by phone, supporting digital inclusion, while CO₂ emissions fell by 30–60% thanks to fewer empty bus trips and reduced car dependency. Operational efficiency also improved, with routes automatically optimized, leading the city to consider expanding the service.

Impact & Result

The solution reduced significantly fuel consumption and vehicle kilometers driven. Estimated CO₂ savings: ~18–22 tons of CO₂eq/year. The number of passengers per km doubled, reducing empty miles and overall vehicle movement. The solution contributed to lower local air pollution and congestion in a semi-rural environment. Operational cost reduction: Up to 15% savings Monthly cost savings for the municipality: ~€800–€1,200 Return on Investment (ROI): Achieved within the first 3–6 months

Thanks to Shotl, we were able to bring flexible, reliable transport to areas we couldn't serve before. Residents appreciate the simplicity and the improved service. It's a smart, cost-effective solution that really works.

, Transport Coordinator, Ajuntament de Vallirana

Solution Spotlight

Shotl is a mobility platform that helps people share rides in minibuses that adapt to real-time passenger demand. Instead of using fixed bus routes that often run empty, Shotl allows passengers to book rides on their smartphones, and the system groups similar trips into a single, efficient journey. This reduces the number of vehicles on the road, lowers emissions, and offers better service to those living in suburban or low-density areas, including seniors and people without cars. City councils, universities, and business parks use Shotl to provide flexible, cost-effective mobility without needing new vehicles or infrastructure. The service is already active in several European cities, and has shown to reduce transport costs, increase accessibility, and support a shift toward more sustainable and inclusive public transport.

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.