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Related Experiment Video

Updated: Mar 16, 2026

Visualizing Visual Adaptation

Visualizing Visual Adaptation

Published on: April 24, 2017

Colour Coding of Maps for Colour Deficient Observers.

Anne Kari Røise¹, Anne Kristin Kvitle², Phil Green²

¹The Norwegian Science and Technology University (NTNU) Gjøvik, Norway.

Studies in Health Technology and Informatics

|August 19, 2016

Summary

This study improved web map traffic colors for color vision deficient users. Adjustments ensure better map readability for everyone, enhancing universal design principles.

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Area of Science:

Cartography
Human-Computer Interaction
Vision Science

Background:

Web map services commonly use color-coding for traffic information.
Color vision deficiencies affect a significant portion of the population, potentially hindering map interpretation.
Existing color schemes may not adequately accommodate users with color vision impairments.

Purpose of the Study:

To evaluate the effectiveness of current color coding in web map traffic services for individuals with color vision deficiencies.
To propose optimized color palettes that improve map readability for a wider audience, including those with color vision impairments.

Main Methods:

Simulations of various color vision deficiency profiles were used to assess existing color schemes.
Principles of universal design were applied to guide color selection and adjustment.
Readability assessments were conducted based on simulated user profiles.

Main Results:

The current color coding of web map traffic information was found to be suboptimal for certain color vision deficiency profiles.
Proposed color adjustments significantly enhance map readability for simulated color vision deficient observers.
The revised color schemes adhere to universal design principles, benefiting all users.

Conclusions:

Web map traffic information services require accessible color design for effective communication.
Adjusting color palettes based on simulated color vision deficiencies improves map usability.
Implementing these color adjustments promotes inclusivity and enhances the user experience for all map users.