2026 China Fellowship
Corridors as Urban Infrastructure: Reorganizing Density in High-Density Communities

From Spatial Fragmentation to Systemic Challenges and Opportunities

The problems in high-density aging communities do not simply arise from density itself, but rather from systemic deficiencies. Past construction methods lacking flexibility and foresight, combined with the absence of comprehensive planning, have resulted in highly fragmented spatial structures that struggle to adapt to contemporary needs.

This condition leads to a series of spatial problems:

• Overloaded ground-level circulation systems
• Inefficient path organization in complex topography
• Limited accessibility for mobility-impaired users
• Lack of public space
• Difficulty accommodating emerging urban demands such as delivery and parking

Within this context, corridor systems—including elevated walkways, pedestrian bridges, and informal path networks—have been introduced in some cities to supplement existing circulation structures. These systems demonstrate certain spatial potentials:

• Enhancing accessibility and circulation efficiency, addressing challenges such as elevation differences and fire safety in aging communities
• Relieving pressure on ground-level systems through vertically layered circulation networks
• Providing alternative platforms for public activities

However, their implementation also reveals significant constraints:

• Difficulties in connecting spaces across different ownerships
• Boundaries between public and semi-public spaces
• Unclear responsibilities for management and maintenance
• Conflicts with fire safety and regulatory requirements

These conditions suggest that corridors should not be understood solely as spatial interventions, but as complex systems shaped by both spatial and operational factors.

Research Question: The Possibility of Corridors as Spatial Organizational Mechanisms

Based on the above context, this research focuses on:

How can corridor systems reorganize circulation structures and spatial relationships in high-density communities without relying on large-scale demolition? And how do the constraints faced in real-world operation affect their spatial performance?

The research will be developed around three aspects:

• How corridors supplement and reconstruct existing accessibility systems
• How corridors organize multi-level spatial relationships in the vertical dimension
• How management and regulatory challenges influence the spatial form and performance of corridors

Methodology

The research employs a combination of spatial analysis and comparative study, including:

1. Path and Network Mapping
   Recording actual pedestrian routes and movement directions
   Identifying key nodes and points of disconnection
   Analyzing circulation efficiency and spatial accessibility
   
   
2. Sectional Analysis
   Examining vertical relationships between ground, elevated, and underground systems to understand how corridors operate across multiple levels.
   Output: sectional drawings
   
   
3. Scenario-Based Corridor Intervention
   Testing minimal corridor insertions at key disconnection points
   Output: before–after comparative diagrams
   
   
4. Operational Mechanism Observation
   Analyzing ownership, management structures, and regulatory constraints
   Output: operational diagrams

Expected Outcomes

This research will produce:

• A classification of typical corridor applications in high-density communities
• Comparative analytical diagrams across different cities
• Diagrammatic summaries of how corridors influence circulation and spatial relationships
  Identification of key constraints affecting corridor systems in real-world operation

I believe circulation infrastructure is more than a means of movement; it is a framework for rebuilding relationships between people, communities, and cities. At a time when the architectural profession is undergoing significant transformation and urban regeneration demands new approaches, this fellowship offers a valuable opportunity to transform design speculation into grounded research through direct observation and comparative studies across high-density Asian cities, allowing these ideas to be tested, refined, and ultimately developed into more human-centered strategies for future urban development.
Fan Guo

China and Japan