SOFIA DEVELOPMENT ASSOCIATION was founded as non-profit organization with the decision 348
of the Sofia Municipal Council to work for the sustainable development of the capital.

Making your city safer by playing games?

The new mobile app #COAPS developed by the CO-APS consortium gathers real-time data from active #publictransport users & helps you avoid crowds and practice social distancing. Do you want to help us stop the spread? #Together4Safety.

Downloading the mobile app #COAPS you can take part in challenges that help reduce crowds in #publictransport. By ensuring social distancing, we can help stop the spread of COVID-19! #Together4Safety. Visit the project website or Google store to download the app

Follow us to find out how you can win a 100-leva voucher!

Together we can limit the spread of COVID-19!

The new mobile app #COAPS gathers real-time data from active #publictransport users & helps you avoid crowds and practice social distancing.
Do you want to help us stop the spread? #Together4Safety. The pilot testing starts Monday, Nov. 16. Find out how to get involved by visiting the website of Sofia Development Association,, and the website of the Urban Mobility Centre -

The most active participants will get a 100-leva voucher!

City Residents Can Help Reduce the Spread of Covid-19 in Public Transport in Sofia

A new article about the project CO-APS emphasizes the role of digital technologies and the citizens’ active engagement in making more secure the public transport and shared urban places for the city residents. The project consortium will developed a mobile application for use by passengers for real-time data of the occupancy rate in public transport in the city. Sofia, along with Barcelona, Istanbul, and Karditsa will be the first to test it. CO-APS will deliver more options and choices for passengers – by choosing which service suits them best from the palm of their hand, the power lies with the passenger. For more information about the project and the launch of the mobile application, visit SDA’s website regularly. Read here more about the project ambition and activities.


The partners of the CO-APS project, implemented with funding from the EIT Mobility COVID-19 response initiative, had their third online meeting on July 30, which focused on defining the functionalities of the mobile application and data analytics tools that will support city authorities and urban mobility centers in optimizing their public transport management. The mobile application built by CO-APS will rely on crowdsourcing and the active involvement of public transport users and volunteers. Using a combination of gamification elements and a system of rewards, the app will enable citizens to report of overcrowded buses, trams, metro stations, etc., so that the public transport officials can take appropriate measures to fix that.

The pilot testing of the app and the digital analytics tool in the partner cities of Istanbul, Karditsa, and Sofia will take place in October and November 2020. If you want to help us create a more secure public transport system in Sofia and to prevent the spread of the coronavirus, visit this website frequently for updates and information on how to get involved.

State-of-the-art Technology to Improve Public Transport and to Prevent the Spread of Covid-19: SDA Joins a Winning Consortium Funded by EIT Urban Mobility

In response to the EIT Urban Mobility Crisis Response Initiative dedicated to addressing urban mobility challenges posed by the COVID-19 pandemic, SDA was invited to join a consortium led by the Technical University of Catalonia for the CO-APS project. The initiative is called Crowdsourced Obtention and Analytics of Data About the Crowding of Public Spaces for the benefit of Public Transport and Mobility in Cities and is one of the 11 innovative projects funded by the EIT. The initiative aims to introduce state-of-the-art technology in just 6 months (July-December 2020) in the partner cities to help public transport authorities deal with the pandemic.

With mobility restrictions being eased in most countries, people are encouraged to go back to work, and the use of public transport and public spaces will grow steadily. Overcrowding and keeping social distance are critical challenges in this respect, with significant impact on life in the city, including also public transport, the economy, social activities, etc. CO-APS will consider these aspects by implementing Mobile, Web and Cloud technologies. CO-APS will collect data to provide analytical solutions with added value information about crowds and their mobility that will be tested in various use cases/small scale pilots involving the consortium stakeholders: TMB-Spain (Barcelona train stations), City of St. Germain-France (pedestrian commercial streets), Karditsa-Greece (multi-modal mobility), Sofia and Istanbul-Turkey (transport hubs).

SDA will cooperate with the Center for Urban Mobility and Directorate Public Transport of Sofia Municipality in this initiative.

Project duration: 1 July – 31 December 2020

CO-APS Project consortium: 

Technical University of Catalonia (Spain)

TMB-Metro Barcelona (Spain)

Air Institute (Spain)

UITP – International Association of Public Transport (Belgium)

City of Karditsa (Greece)

City of Istanbul (Turkey)

Sofia Development Association

Read here about the initiative and the winning projects.

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