Location / Perspective
A map needs a reliable position.
Permissions and GPS reading quality affect what can be displayed. Missing information should have a clear interface state.
Discuss this topic ↗Ideas for
clearer road awareness.
Practical perspectives on location quality, record freshness, speed information and understandable mobile experiences.
Featured
thinking.
Useful questions for people developing or using location based road information.
Road awareness
notes.
Three recurring issues that deserve a more practical response.
Handle uncertainty before it becomes confusing
Explain unavailable readings and mapping services so people understand the context.
Talk to Indexial ↗Keep measured speed separate from estimates
GPS based speed display is different from estimated road information. Estimates are not verified posted limits.
Talk to Indexial ↗Freshness is part of useful information
Coordinate checks, source context and data versions help explain the records shown on a map.
Talk to Indexial ↗Indexial perspective
Useful information makes its limitations understandable.
A clear mobile experience explains what is known, what is uncertain and when relevant information is unavailable.
That principle applies to position accuracy, mapping services, stale records and estimated road speed information.