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The Impact of Superblocks on Urban Health: Measuring Traffic and Environmental Changes in Lisbon during the Campo de Ourique Superblock Experience
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Resumo(s)
This research examines the emerging urban superblock design model in Portugal,
focusing on its’ first experimental implementation in Campo de Ourique. The superblock
concept was first introduced in Barcelona and consists in closing the inner streets of a group
of 9 different blocks to vehicular traffic, increasing space for pedestrians, enhancing urban
greening and reducing pollution. Although the impact of superblocks has been extensively
studied, there is a gap in exploring their feasibility and effectiveness in Portuguese
metropolitan areas. This research aims to assess that gap, by studying the impact of the
Campo de Ourique’s superblock on air quality, noise levels and traffic congestion. By
combining the CRISP-DM and the Difference-in-Differences (DiD) methodologies, this study
comprehensively analysed traffic data from Waze, and air and noise measurements from
quality monitoring stations that are distributed across the city of Lisbon. The DiD
methodology, in combination with CRISP-DM, provided a robust framework for estimating the
causal impact of the superblock, and comparing the results of the treatment group (Campo
de Ourique) and control group (Jardim do Arco do Cego). The results revealed statistically
significant variations in nitrogen dioxide (NO2) concentration levels and average traffic queue’
lengths. Other important findings included reductions in particulate matter (PM2.5 and PM10)
concentrations, further enhancing air quality, and a decrease in average traffic queues’ speed,
promoting street safety. Considering the specific needs and dynamics of Portuguese cities,
this study aims to inform policymakers and stakeholders, facilitating the process of adopting
superblocks as a realistic strategy for urban transformation.
Descrição
Dissertation presented as the partial requirement for obtaining a Master's degree in Data Science and Advanced Analytics, specialization in Data Science
Palavras-chave
Superblocks Air Quality Traffic Congestion Noise Difference-in-Differences SDG 3 - Good health and well-being SDG 11 - Sustainable cities and communities