ROADMAP.md

Project Roadmap & Extensions

This document tracks future enhancements and features that are out of scope for the current MVP but planned for later.

API Extensions

Smarter Transfer Matching

• Goal: Use live data and historical patterns to validate transfers more intelligently than a fixed buffer.
• Implementation:
  • Platform Awareness: Use TimetableService to get real-time platform info.
  • Dynamic Buffer:
    • Same Platform: 2 mins
    • Same Station: 7 mins
    • Cross-City: 10 mins
  • Delay Propagation: If incoming train is delayed, check if the connection is still reachable.

Historical Data Integration

• Goal: Use the downloaded Parquet files (datachaos/deutsche-bahn-data/) to predict delays for future dates.
• Implementation:
  • Ingestion Script: server/scripts/ingest_delays.py to populate delay_patterns table.
  • SimulationService: Query this table to provide "Probable Delay" for future trips.

Advanced Routing

• Goal: Replace the static GraphService with a time-dependent routing algorithm.
• Implementation:
  • CSA (Connection Scan Algorithm): Implement CSA on the raw GTFS stop_times data.
  • Raptor: Alternative algorithm for multi-criteria optimization (e.g., "Fastest" vs "Fewest Transfers").

Infrastructure

• Dockerization: Containerize the application for easier deployment.
• Caching Strategy: Move from JSON/GML file cache to Redis or similar for the Graph.