Flow Diagram: Route Safety Scoring System

[Google/Mapbox Directions AP]
[Route Segments Extracted]

[Static Data (from DB)]
- Street lighting (OSM/city data)
- Police stations (Places API)
- Police stziews
- User reviews (stored in DB)
- NGO reports

Dynamic Data (from APIS)
- Traffic (Mapbox/Google/TomTom)
- Road incidents (Waze/TomTom)

- Footfall (Placer.ai/SafeGraph)
- Weather (optional future)

[Feature Fusion + RAG Review Summarization]
- Normlize scores (0–1)
- Weighted scoring formula
- RAG fetches top reviews/NGO notes
- LLM outputs contextual safety tags

[React Native App U]
[Final Safety Score per Segment + Route]
- Routes shown with colors (Green/Amber/Red)
- "Safest Route" highlighed
- Route Options panel shows distance, time, safety

Mobile App Architecture & User Action Flow

Google Maps API
(fetch maps/routes/places)

Firestore DB
(read/write safety data, reviews, user profile, emergency contacts)

Cloud Functions
(for processing, e.g. new safety report)

FCM
(push notifications; emergency alerts)

On map view:
Fetch route options
via Google Maps API

Display map + overlay
(color coding: Red/Yellow/Green)

User selects route
Show safety info + navigation

App sends alert + location
to backend (Firestore/Cloud Function)

Cloud Function triggers FCM push notifications to emergency contacts/community

Writes incident log
to Firestore (optional)

Cloud Function aggregates/processes data
updates safety levels

1. Data Acquisition
(NCBI SRA, ENA)

2. Preprocessing
- FastQC/MultiQC
- Trimmomatic

3. Feature Extraction
- k-mer embeddings
- DNA language models

4. Dimensionality Reduction
- UMAP / t-SNE

5. Clustering
- HDBSCAN / DBSCAN

6. Taxonomic Identification
- BLASTn (NCBI, SILVA)
- Kraken2 / Kaiju

7. Visualization & Reporting
- Matplotlib / Seaborn
- Krona / Streamlit dashboard

8. Workflow Mgmt.
- Snakemake/Nextflow
- Docker/Colab

Navigation Layer
- Route calculation
- Location tracking
- Safety analysis

getMultipleGoogleRoutes()
- Fetch standard routes
- Fetch avoid highways
- Fetch avoid tolls

Google Directions API
Returns: routes with polylines

decodePolyline()
Convert to coordinates array

analyzeRouteSafety()
- Get area safety scores
- Call routeSafetyService
- Calculate overall safety

RouteSafetyService
- OSM Integration
- Weather API
- Safety Scoring

Sort routes by safety & duration
Assign colors based on scores

RouteOptionsDisplay Component
Display route cards with scores

EDAI-5