docs: add comprehensive Dataset Card with scripts pipeline documentation

- Added HuggingFace metadata tags (license, task, language, size)
- Full data contents table with sources and sizes
- Scripts/ folder structure documented with origin paths
- Quickstart commands for running each data acquisition script
- Notes on Pro vs basic fetcher versions

README.md

@@ -1,3 +1,157 @@
----
-license: apache-2.0
----
+---
+license: apache-2.0
+task_categories:
+  - object-detection
+  - question-answering
+language:
+  - en
+  - hi
+tags:
+  - road-safety
+  - india
+  - emergency-services
+  - traffic-law
+  - geospatial
+  - rag
+pretty_name: SafeVisionAI Dataset Hub
+size_categories:
+  - 1B<n<10B
+---
+
+# SafeVisionAI Dataset Hub 🛡️
+
+> The **Intelligence Layer** for the SafeVisionAI platform — IIT Madras Road Safety Hackathon 2026
+
+This repository hosts all datasets, pre-trained models, notebooks, and **reproducible data acquisition scripts** that power the SafeVisionAI application. It is designed to be cloned directly into Google Colab or any research environment.
+
+**Main Application Repo:** [SafeVision-AI/SafeVision-AI](https://github.com/SafeVision-AI/SafeVision-AI)
+
+---
+
+## ⚡ Quickstart (Google Colab)
+
+```python
+# Clone the entire intelligence layer
+!git clone https://huggingface.co/datasets/rohith083/SafeVisionAI-Dataset-Hub /content/data
+
+# Symlink into the app structure
+import os
+os.makedirs("/content/SafeVisionAI/chatbot_service", exist_ok=True)
+!ln -sfn /content/data/data/chatbot_service/data /content/SafeVisionAI/chatbot_service/data
+```
+
+---
+
+## 📦 Repository Structure
+
+```
+SafeVisionAI-Dataset-Hub/
+├── data/                         ← 3.6 GB of raw intelligence data
+│   ├── chatbot_service/data/     ← Legal PDFs, GIS CSVs, accident data, models
+│   └── backend/datasets/         ← Challan rules, road infrastructure
+│
+├── scripts/                      ← Reproducible data acquisition pipeline
+│   ├── scripts/data/             ← Root-level data scripts (fetchers, extractors)
+│   ├── backend/data/             ← Backend data transforms (pure Python)
+│   └── chatbot_service/data/     ← Pro Overpass GIS fetchers
+│
+└── notebooks/                    ← Research notebooks and analysis
+```
+
+---
+
+## 🗂️ Data Contents
+
+| Category | Files | Size | Source |
+|---|---|---|---|
+| Emergency Services GIS | `hospitals.csv`, `police_stations.csv`, `fire_stations.csv`, `ambulance.csv` | ~150 MB | OpenStreetMap Overpass API |
+| Legal Documents | `motor_vehicles_act_1988.pdf`, `mv_amendment_act_2019.pdf` | ~30 MB | MoRTH / Indian Kanoon |
+| Accident Statistics | `kaggle_india_accidents.csv`, `morth_2022/*.csv` | ~250 MB | MoRTH / Kaggle |
+| Road Infrastructure | `pmgsy_roads.geojson`, `toll_plazas.csv` | ~900 MB | PMGSY GeoSadak / NHAI |
+| Hospital Directory | `hospital_directory.csv`, `nin_facilities.csv` | ~1.2 GB | NHP / NIN |
+| Traffic Violations | `violations_seed.csv`, `state_overrides.csv` | ~5 MB | MVA 2019 |
+| Road Damage Model | `road_damage_2025/` | ~800 MB | ONNX + Training Data |
+| QA Pairs | `qa_pairs/` | ~50 MB | Custom RAG Training |
+
+---
+
+## 🔬 Scripts — Reproducible Data Pipeline
+
+The `scripts/` folder mirrors the main application's data acquisition pipeline.
+All scripts here are **pure Python** — they run without any database or backend stack.
+
+### Structure
+
+```
+scripts/
+├── scripts/data/             ← from SafeVisionAI/scripts/data/
+│   ├── _overpass_utils.py    ← Core GIS utility (basic version)
+│   ├── fetch_hospitals.py    ← Hospital data from OpenStreetMap
+│   ├── fetch_police.py       ← Police station data
+│   ├── fetch_ambulance.py    ← Ambulance service data
+│   ├── fetch_blood_banks.py  ← Blood bank data
+│   ├── fetch_fire.py         ← Fire station data
+│   ├── download_legal_pdfs.py ← MV Act PDF downloader
+│   ├── extract_morth2022_tables.py ← PDF → CSV extractor
+│   ├── seed_blackspots.py    ← Accident blackspot normalizer
+│   ├── bootstrap_local_data.py ← Master data orchestrator
+│   ├── verify_data.py        ← Data integrity checker
+│   ├── inspect_zips.py       ← Dataset zip validator
+│   ├── audit_env.py          ← Environment configuration checker
+│   ├── check_all_scripts.py  ← Script syntax validator
+│   └── setup_kaggle.ps1      ← Kaggle API auth setup
+│
+├── backend/data/             ← from SafeVisionAI/backend/scripts/data/
+│   ├── seed_violations.py    ← Traffic fine normalizer (MVA 2019)
+│   ├── prepare_road_sources.py ← CSV/GeoJSON → LineString converter
+│   ├── sample_pmgsy.py       ← PMGSY 867K roads sampler
+│   ├── road_sources.example.json ← Manifest template
+│   └── road_sources.json     ← Active road source manifest
+│
+└── chatbot_service/data/     ← from SafeVisionAI/chatbot_service/scripts/data/
+    ├── _overpass_utils.py    ← Pro GIS utility (with retries + backoff)
+    ├── fetch_hospitals.py    ← Pro hospital fetcher
+    ├── fetch_police.py       ← Pro police fetcher
+    ├── fetch_ambulance.py    ← Pro ambulance fetcher
+    ├── fetch_blood_banks.py  ← Pro blood bank fetcher
+    └── fetch_fire.py         ← Pro fire station fetcher
+```
+
+### Running the Scripts
+
+```bash
+# 1. Setup Kaggle auth (one-time)
+pwsh scripts/scripts/data/setup_kaggle.ps1
+
+# 2. Fetch all emergency service GIS data (Pro versions recommended)
+python scripts/chatbot_service/data/fetch_hospitals.py
+python scripts/chatbot_service/data/fetch_police.py
+python scripts/chatbot_service/data/fetch_ambulance.py
+python scripts/chatbot_service/data/fetch_blood_banks.py
+python scripts/chatbot_service/data/fetch_fire.py
+
+# 3. Download legal documents
+python scripts/scripts/data/download_legal_pdfs.py
+
+# 4. Extract MoRTH accident tables
+python scripts/scripts/data/extract_morth2022_tables.py
+
+# 5. Verify everything
+python scripts/scripts/data/verify_data.py
+```
+
+> **Note:** `chatbot_service/data/` versions of the fetchers are the **Pro versions** — they include retry logic, exponential backoff, and more precise Indian GIS selectors.
+
+---
+
+## 📓 Notebooks
+
+See `notebooks/README.md` for the full Colab quickstart guide.
+
+---
+
+## 📜 License
+
+Apache 2.0 — See [LICENSE](LICENSE)
+
+Data sourced from OpenStreetMap (ODbL), MoRTH (Government of India Open Data), Kaggle, PMGSY GeoSadak, and National Health Portal.