THE ROAD MAPS ITSELF.
Turn everyday car drives, bus commutes, and motorcycle trips into high-precision road hazard maps anywhere in the world. Hodos runs silently in your pocket or vehicle mount, using on-device motion sensors and adaptive noise-floor calibration to log potholes and severe road rutting with zero screen distraction and zero privacy compromise.
Inaugural high-density transit corridor mapped across 500+ km of rugged highways. Multi-trip corroboration distinguishes transient road bumps from permanent structural pavement craters.
AUTONOMOUS SENSOR ENGINE
How Hodos extracts clean pavement intelligence on any vehicle globally—from diesel buses and delivery vans to passenger cars and scooters.
Dynamic Noise Floor Tracking
Continuous Median Absolute Deviation (MAD) envelope tracking calculates the chassis vibration baseline in real-time. Heavy bus leaf springs or motorcycle engine vibrations dynamically raise the baseline so normal vehicle rumble is ignored.
Zero Driver Distraction
Completely silent background execution. Android Activity Recognition arms sampling only during vehicular movement. No popups, no buttons to tap while driving, and zero haptic vibrations when striking bumps.
Privacy by Construction
Raw motion traces stay strictly in device RAM. The first and last 250 meters of every trip are trimmed on-device so residential streets and endpoints are never transmitted. Hazards only publish after multi-trip independent corroboration.
MUNICIPAL & OPEN GIS COMPATIBILITY
Standardized geospatial data formats designed for city highway departments, civil engineering contractors, and open-source civic research.
Standardized ASTM E1926 IRI
Quarter-car dynamic simulation calculates true International Roughness Index (IRI m/km) per street segment, enabling pavement engineers to identify resurfacing candidates months before catastrophic failures occur.
Uber H3 Hexagonal Spatial Indexing
Discrete global spatial indexing provides uniform, distortion-free cell aggregations ready for BigQuery, PostGIS, QGIS, and ArcGIS spatial analysis without projection errors.
DUAL-LICENSING FRAMEWORK
Balancing radical open-source transparency with legal protection for community-crowdsourced road datasets worldwide.
100% Free & Open Source
The Android application, sensor signal algorithms, and web map viewer are licensed under the MIT License. Anyone worldwide can audit the privacy guarantees, compile their own APK, or inspect the sensor filtering code.
- Complete source code hosted on GitHub
- Zero proprietary tracking or advertising SDKs
- Public issue tracker and community pull requests
Protected Community Data
All crowdsourced road defect coordinates, roughness telemetry, and hazard layers are licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0. Free for citizens, researchers, and public infrastructure departments globally.
- Free GeoJSON and GPX downloads for non-commercial use
- Commercial fleet routing & logistics require enterprise licensing
- Prevents unilateral corporate extraction of civic volunteer data
TECHNICAL QUESTIONS
Answers regarding global sensor filtering, device mounting, battery usage, and dataset governance.
Does Hodos vibrate my phone when hitting a pothole?
No. Haptic vibration is strictly disabled. The app runs completely silently in your pocket or vehicle mount without interrupting you or distracting drivers.
How does Hodos prevent false alarms from vehicle vibration?
Continuous Median Absolute Deviation (MAD) noise-floor tracking dynamically adjusts sensitivity. Continuous chassis vibration from heavy trucks, buses, or motorcycles automatically raises the detection threshold so normal engine rumble is ignored.
Can commercial logistics fleets extract this data for free?
No. The crowdsourced dataset is protected under the CC BY-NC-SA 4.0 license. While citizens, civic tech groups, and universities can access it freely for non-commercial research, commercial entities (logistics fleets, ride-hailing services, insurance underwriters) must obtain an enterprise commercial license from Devilabs.
Does Hodos work in any country?
Yes. The sensor signal algorithms and GPS observation pipeline operate autonomously anywhere on Earth. OpenFreeMap vector basemaps are downloaded and cached automatically over Wi-Fi so the app operates even across remote offline corridors.