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Enabling heat-stress-resilient mobility with the HEAL navigation app in Germany

A heat-aware navigation app helps citizens and visitors find cooler routes during extreme heat. Using near-real-time data and modelling, it supports at-risk groups, maintains mobility, and can be scaled to other cities.

  • General publications

Details

Publication date
23 October 2025
Author
Directorate-General for Climate Action
Country
Germany

Description

Key Learnings

  • A Participatory Approach helps overcome real-life challenges: Engaging at-risk groups through interactive walks and workshops provided critical insights into real-life mobility challenges, such as the absence of shaded resting areas, exposed public transport stops, and long waits at poorly timed traffic lights, and paved the way for overcoming them.
  • Accessibility Considerations: When designing heat-stress-resilient navigation Apps that account for diverse user needs, ensure broad usability and inclusivity.
  • Scalability supports broad application: Ensuring adaptability to other circumstances with similar challenges enables other cities to apply the navigation App, as it provides a model for integrating heat adaptation strategies into urban mobility. Data provided by the navigation App can support informed decision-making and the implementation of tailored urban planning measures.

Summary

Interdisciplinary research paired with community engagement can enhance urban resilience to heat stress. By developing a heat-stress-avoidant navigation application (App), the HEAL project supports vulnerable groups in navigating the city more safely during extreme heat. Through interactive walks and workshops, researchers gained valuable insights into real-life mobility challenges, ensuring the App is both practical and accessible. As HEAL expands beyond Heidelberg, it provides a transferable model for integrating climate adaptation into daily urban mobility across European cities.

Contact

Institute of Geography
University of Heidelberg
healatuni-heidelberg [dot] de (heal[at]uni-heidelberg[dot]de)

Digital image from the HEAL app showing heat level and the road where it is taking the reading from on the right

Files

  • 23 OCTOBER 2025
Adaptation Story - Heat-stress-resilient mobility, HEAL navigation app, Germany