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Recognizing resilience evolution and connectivity in the Yangtze River Delta urban agglomeration.
Xihui Wang1, Mei Sun1, Minlian Wu2
1Department of Management, University of Science and Technology of China, 96 Jinzhai Street, Hefei, 230026, China.
Urban infrastructure resilience is crucial for sustainable development. This study reveals that while some cities improved resilience, regional inequalities grew, highlighting the need for balanced urban planning in metropolitan areas.
Area of Science:
- Urban planning and sustainable development
- Complex network theory
- Regional infrastructure resilience
Background:
- Urban infrastructure resilience is vital for sustainable development in fast-growing urban areas.
- Current assessments overlook inter-city dependencies, limiting regional resilience network understanding.
- Evaluating topological evolution of resilience networks at a regional scale is challenging.
Purpose of the Study:
- To develop a novel framework for evaluating infrastructure resilience evolution.
- To analyze spatiotemporal dynamics of resilience across 41 cities in China's Yangtze River Delta (YRD).
- To understand the impact of resilience improvements on regional inequalities.
Main Methods:
- Integration of the pressure-state-response (PSR) model with complex network theory.
- Utilizing ArcGIS and network analysis for spatiotemporal dynamics assessment.
- Evaluating resilience evolution from 2013 to 2022 across 41 YRD cities.
Main Results:
- Rapid resilience gains in core cities worsened regional inequalities.
- Distinct regional patterns observed in pressure, state, and response subsystems.
- Increased cooperation in state and response networks; dispersed pressure sources; dynamic pressure nodes.
Conclusions:
- Insights provide a decision-support tool for balanced, resilient urban construction in the YRD.
- Highlights the need to address regional inequalities arising from uneven resilience improvements.
- Framework offers a method for assessing regional infrastructure resilience dynamics.
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