Superblockify: A Python Package for Automated Generation, Visualization, and Analysis of Potential Superblocks in Cities

מושגי ליבה

superblockify is a Python package that enables the automated generation, visualization, and analysis of potential superblocks in cities, supporting data-driven urban planning and research.

תקציר

The superblockify Python package provides a comprehensive solution for processing and analyzing urban street networks to identify potential superblock configurations. It offers the following key features:

Data Access and Partitioning:

• Retrieves street network data from OpenStreetMap and population data from GHS-POP
• Partitions the street network into superblocks using two approaches: residential and betweenness centrality

Visualization:

• Generates visualizations of the superblock configurations, highlighting relevant factors such as area, population, and demand changes

Analysis:

• Calculates various graph metrics for the overall street network and individual superblocks, including global efficiency, directness, betweenness centrality, spatial clustering, street orientation, and average circuity

The package is designed with a modular and extensible architecture, allowing for the implementation of custom partitioning approaches. It leverages efficient computational techniques, such as Dijkstra's algorithm with Fibonacci heaps and just-in-time compilation, to ensure optimal performance when analyzing large-scale street networks.

superblockify serves two primary use cases:

1. For urban planners, it provides a quick way to generate superblock blueprints and descriptive statistics to inform the planning process, which can then be further refined using tools like QGIS, A/B Street, or TuneOurBlock.
2. For researchers, it enables large-scale studies across multiple cities or regions, providing valuable insights into the potential impacts of superblocks and supporting the identification of best practices and strategies for their implementation.

The software is licensed under AGPLv3 and is available at https://superblockify.city.

סטטיסטיקה

"The Superblock model is an urban planning intervention with massive public health benefits that creates more liveable and sustainable cities (Laverty et al., 2021; Mueller et al., 2020; WHO, 2022)."
"Superblocks form human-centric neighborhoods with reduced vehicular traffic. They are safer, quieter, and more environmentally friendly (Agència d'Ecologia Urbana de Barcelona et al., 2021; Martin, 2021; Mueller et al., 2020) than car-centric urban landscapes which fully expose citizens to car harm (Miner et al., 2024)."
"Recent quantitative studies on Superblocks have focused on potential Superblock detection via network flow, interactive micro-level planning tools, green space, social factors, health benefit modeling, or an algorithmic taxonomy of designs (Eggimann, 2022a, 2022b; Feng & Peponis, 2022; Frey et al., 2020; Li & Wilson, 2023; Yan & Dennett, 2023)."

ציטוטים

"With increased urbanization, impacts of climate change, and focus on reducing car-dependence (Mattioli et al., 2020; Ritchie & Roser, 2018; Satterthwaite, 2009), the need for sustainable urban planning tools like superblockify will only increase (Nieuwenhuijsen et al., 2024)."

תובנות מפתח מזוקקות מ:

superblockify: A Python Package for Automated Generation, Visualization, and Analysis of Potential Superblocks in Cities

by Carl... ב- arxiv.org 04-24-2024

https://arxiv.org/pdf/2404.15062.pdf

שאלות מעמיקות

How can superblockify be integrated with other urban planning tools and workflows to create a more comprehensive data-driven approach to superblock implementation?

Superblockify can be integrated with other urban planning tools and workflows through data interoperability and collaboration. One way to enhance the data-driven approach is by integrating superblockify with Geographic Information Systems (GIS) software like QGIS. By exporting Superblock data from superblockify in GeoPackage format, it can be easily imported into QGIS for further spatial analysis and visualization. This integration allows urban planners to overlay Superblock data with additional layers such as land use, demographics, or environmental factors to make more informed decisions.
Furthermore, superblockify can complement tools like A/B Street or TuneOurBlock, which focus on traffic simulations and micro-level planning. By feeding the Superblock blueprints generated by superblockify into these tools, planners can simulate different scenarios, assess the impact on traffic flow, and fine-tune the Superblock designs based on the simulation results. This iterative process enables a more comprehensive evaluation of Superblock implementation strategies and their implications on urban mobility.
Collaboration with stakeholders and experts in urban planning, transportation engineering, and public health is also crucial. By incorporating feedback from these professionals, superblockify can be refined to better align with the practical needs and challenges of Superblock implementation in real-world urban environments. This collaborative approach ensures that the data-driven insights provided by superblockify are relevant, actionable, and aligned with the broader goals of sustainable urban development.

What are the potential limitations or challenges in using computational methods like superblockify for superblock planning, and how can they be addressed?

One potential limitation of using computational methods like superblockify for superblock planning is the reliance on data quality and availability. Inaccuracies or incompleteness in OpenStreetMap data, which superblockify leverages, can lead to errors in Superblock partitioning and analysis. Addressing this challenge requires continuous data validation, updating, and potentially integrating data from multiple sources to improve the accuracy and reliability of the results.
Another challenge is the complexity of urban environments, where factors like mixed land use, varying traffic patterns, and social dynamics can influence the effectiveness of Superblocks. Superblockify's current partitioning approaches may not capture these nuances adequately, leading to suboptimal Superblock designs. To address this, the package could be enhanced with more sophisticated algorithms that consider multiple criteria for partitioning, such as land use diversity, pedestrian accessibility, and social equity metrics.
Moreover, user expertise and technical proficiency can be a barrier to effectively utilizing superblockify. Training and support resources should be provided to urban planners and researchers to ensure they can maximize the potential of the tool and interpret the results accurately. Additionally, user-friendly interfaces and documentation can streamline the workflow and make the tool more accessible to a wider audience.

What other urban design concepts or interventions could benefit from a similar computational analysis approach as superblockify, and how could the package be extended to support those?

Other urban design concepts or interventions that could benefit from a similar computational analysis approach as superblockify include Low Traffic Neighborhoods (LTNs), Pedestrian Zones, and Green Corridors. These interventions share similarities with Superblocks in promoting sustainable mobility, enhancing public spaces, and reducing the dominance of cars in urban areas.
To support these concepts, superblockify could be extended with additional partitioning algorithms tailored to the specific characteristics of each intervention. For example, for Pedestrian Zones, the package could incorporate algorithms that prioritize pedestrian-friendly streets and connectivity while minimizing vehicular intrusion. Green Corridors could benefit from algorithms that identify routes with high potential for green infrastructure integration and environmental benefits.
Furthermore, integrating real-time data sources such as traffic flow sensors, air quality monitors, or pedestrian counts into superblockify could enhance the analysis and monitoring of these urban interventions. By providing dynamic insights into the performance and impact of LTNs, Pedestrian Zones, and Green Corridors, urban planners can make more informed decisions and adjustments to optimize the effectiveness of these interventions over time.
By expanding the scope of superblockify to encompass a broader range of urban design concepts and interventions, the package can serve as a versatile tool for data-driven decision-making in urban planning, contributing to the creation of more sustainable, livable, and resilient cities.