thresholds
Runway_Thresholds
Runway Piano Markings Dataset
A computer vision dataset of airport runway threshold markings (piano keys), for object detection.
Overview
This dataset contains 8,000 satellite images of size 640×640 captured from Google Maps. Each image focuses on "piano markings", the threshold indicators at the start of a runway. To make the task easier, all runways are oriented up.
Dataset Structure
The dataset is organized into two primary directories:
dataset/
├── images/… See the full description on the dataset page: https://huggingface.co/datasets/DEEL-AI/Runway_Thresholds.lmsys-arena-human-preference-55k-thresholdsclean-air-act-major-source-thresholds
Clean Air Act "major source" emission thresholds by pollutant and area classification
Canonical, always-current version: https://referencesource.org/clean-air-act-major-source-thresholds/
Machine-readable: https://referencesource.org/clean-air-act-major-source-thresholds/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-19
Stale after: 2027-02-15 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records: 13… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/clean-air-act-major-source-thresholds.reckless-driving-speed-thresholds-by-state
Reckless / excessive-speeding mph thresholds that trigger a criminal charge, by state
Canonical, always-current version: https://referencesource.org/reckless-driving-speed-thresholds-by-state/
Machine-readable: https://referencesource.org/reckless-driving-speed-thresholds-by-state/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-20
Stale after: 2027-08-20 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/reckless-driving-speed-thresholds-by-state.chemical-regulatory-reporting-thresholds
US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)
Canonical, always-current version: https://referencesource.org/chemical-regulatory-reporting-thresholds/
Machine-readable: https://referencesource.org/chemical-regulatory-reporting-thresholds/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-05
Stale after: 2027-08-05 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)
Records:… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/chemical-regulatory-reporting-thresholds.state-lemon-law-eligibility-thresholds
State lemon law eligibility thresholds: time limits, mileage, and repair attempts by US state
Canonical, always-current version: https://referencesource.org/state-lemon-law-eligibility-thresholds/
Machine-readable: https://referencesource.org/state-lemon-law-eligibility-thresholds/data.json — this mirror is a point-in-time copy.
Last verified: 2026-08-17
Stale after: 2027-08-17 (past this date, prefer the canonical copy —
it re-verifies on a cadence this snapshot does not)… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/state-lemon-law-eligibility-thresholds.