Participatory Budgeting (PB) is a process implemented in the 1990s where residents of certain regions can influence how their governments' annual budgets are allocated. After the collapse of its authoritarian regime in the mid 1980s, Brazilians implemented reforms to bolster their economic and political futures through participatory methods. These new democratic practices drastically improved the lives and social infrastructure of its participants.
Participatory decentralization is the process of handing out legitimate political authority to the citizens. It contributes to democratization by bringing the government ‘closer to the people’, imparting the citizens with political knowledge through their participation in local management, and making the government more accountable. 
In the context of the perpetual crisis of urban transportation in Bucharest, there is a growing population of city dwellers fighting for bicycle rights and advocating for a new, bicycle friendly infrastructure in Bucharest. The bicycle fans coagulated since the mid 2000’s into different groups and NGO’s and developed into a new movement and a powerful presence in the urban landscape, adopting several strategies of public participation.
The present work is the outcome of an essay prepared for "Disclosure Policies and Innovations in Governance", a core course held by Professor Elena Fagotto at the Second Level Master in International Public Affairs organized by the School of Government of LUISS Guido Carli University, Rome, Italy, academic year 2010/2011.
This case study features a referendum on a controversial viaduct in Antwerp, Belgium. The construction of this viaduct was highly troubled and costly from the beginning, attracting heavy criticism from multiple groups. A referendum ultimately rejected plans to build the unpopular bridge, instead replacing it with a series of tunnels.