Privacy Notice — Road Quality Map

Last updated: September 2026. This notice is written for India's Digital Personal Data Protection Act, 2023.

What we collect

• Accelerometer readings, used to estimate road roughness.
• Gyroscope (rotation) readings, used to detect when the phone is being handled so those moments are excluded from the road score.
• Device orientation and, where available, compass-based absolute orientation, used to remove gravity from the signal.
• GPS location while you are actively recording, used to place readings on the map.
• Your selected mount and vehicle type, used to interpret the sensor signal.
• A randomly generated device identifier stored in your browser, used to de-duplicate rides and to show you your own contribution totals. It is not linked to your name and is never shown to other users.

What we do not collect

• No name, email, phone number, or account. There is no login.
• No microphone or camera access.
• No background location. Recording only runs while the page is open and you have started it.

How your data is treated

• Raw traces are trimmed by roughly 500 m at both ends on your device, before upload, so trip start and end points are not stored.
• Only aggregated scores per road segment are published on the map. Individual traces are never shown publicly.
• Data is stored on servers used to operate this tool and is not sold or shared for advertising.
• Your contribution totals (rides, kilometres, events) are keyed to your anonymous device identifier and are visible only to you in your own browser.
• You can clear consent, your device identifier, and any locally queued rides at any time with the “Clear my data & consent” button on the map page, or by clearing your browser storage.

Retention

Aggregated segment scores are kept indefinitely so the map stays useful. Raw traces are retained only as long as needed to reprocess scores.

Accuracy disclaimer

Scores are relative and device-dependent. They are not a certified International Roughness Index (IRI) measurement and must not be used as a sole basis for engineering, contracting, or safety decisions.

Contact

For questions or removal requests, reach out via the contact details on the main site.