Challenge Briefs

Real urban problems, constraints, and contexts.

Challenge briefs translate complex city realities into actionable problem spaces—without pretending there is one "right" solution.

Heat stress and neighborhood resilience

Problem statement:

Urban heat islands disproportionately affect vulnerable neighborhoods, but existing interventions often ignore local context, community knowledge, and long-term maintenance needs.

Constraints:
  • Limited historical temperature data at neighborhood scale
  • Policy restrictions on tree planting in some areas
  • Equity concerns about gentrification from "greening"
Desired outcomes:
  • Reduced heat exposure during peak hours
  • Increased community engagement in resilience planning
  • Sustained maintenance of interventions

Transit reliability and waiting-time equity

Problem statement:

Public transit systems optimize for average performance while leaving some riders with consistently unreliable service, particularly in lower-income neighborhoods.

Constraints:
  • Real-time data availability varies by route
  • Infrastructure constraints limit schedule changes
  • Budget limitations prevent service expansion
Desired outcomes:
  • Reduced variance in waiting times across routes
  • Better communication during disruptions
  • More equitable access to reliable service

Public space stewardship and belonging

Problem statement:

Public spaces succeed when communities feel ownership and responsibility, but many spaces feel abandoned or unwelcoming, leading to underuse and decline.

Constraints:
  • Limited maintenance budgets
  • Diverse community needs and preferences
  • Safety perceptions vary by time and user group
Desired outcomes:
  • Increased usage and positive engagement
  • Community-led maintenance and programming
  • Improved sense of belonging across user groups
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