Analysis of the "Città 30" initiative in Bologna: evaluation of impacts and future perspective

The Città 30 initiative in Bologna represents a significant urban mobility reform aimed at enhancing road safety, reducing emissions, and promoting sustainable transport through a city-wide 30 km/h speed limit. By contrasting actual results with the pre-feasibility study's initial expectations, this thesis assesses the initiative's impact throughout its first year. The research employs quantitative data analysis, comparative studies with other European cities, and a cost-benefit approach to assess changes in traffic safety, environmental quality, and public perception. Although there are still issues with public acceptability and enforcement, results show a significant decline in accidents and fatalities, improvements in air quality, and a trend towards active mobility. The report also looks at future research approaches and policy improvements, highlighting the significance of smart speed control systems, integrated transport planning, and urban design modifications for long-term success. The conclusions highlight Bologna’s pioneering role in sustainable urban mobility, offering valuable lessons for other cities considering similar policies.