World Solve — A living repository of problems worth solving.

Repository of problems worth solving

World Solve is a public institutional repository for identifying real unresolved problems across science, society, health, governance, economics, and local systems. Each entry is intended to be citable, inspectable, and actionable.

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4194Total

4194Open

0Solved

9Humans

We haven't established safe and harassment-free public transport infrastructure for female commuters in expanding urban areas.

open Nepal, Asia

Ubiquitous sexual harassment on public transit restricts women's mobility, limiting their access to employment, higher education, and public spaces.

science-space asia nepal public-transport public haven established safe harassment-free transport infrastructure female commuters expanding society-governance global-unspecified technology-computing economics-resources

WS02242

By Ian Patel · 2026-07-22T08:00:00Z · Horizon: 2027

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WS02242 | World Solve | https://www.worldsolve.org/index.php?view=problem&id=2242

Formalizing and improving informal transit systems in Germany.

open Germany, Europe

Informal minibus and paratransit systems in Germany carry the majority of urban commuters but operate without route optimization, safety standards, or integration with formal transit planning.

mathematics-logic europe germany informal transit systems formalizing improving minibus paratransit carry majority society-governance technology-computing settlements economics-resources climate-environment public

WS02596

By Ian Patel · 2026-04-16T07:40:03.000Z · Horizon: 2040

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WS02596 | World Solve | https://www.worldsolve.org/index.php?view=problem&id=2596