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docs: add traffic-intelligent routing and Idaho 511 planned features

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- Append section 11 (On-Network Traffic Intelligence) to OFFROUTE-ARCHITECTURE.md
- Create navi-feature-ideas.md with planned features:
  - Traffic-aware Valhalla routing via TomTom tiles
  - Idaho 511 incident feed integration
  - ADS-B/AIS tracking
  - TAK Server + EUD integration
  - Native iOS app

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Matt 2026-05-08 07:02:00 +00:00
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docs/OFFROUTE-ARCHITECTURE.md
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@ -394,3 +394,34 @@ This system may guide people through dangerous terrain. Design constraints:
- GRASS GIS. `r.walk` manual. grass.osgeo.org.
- Hoover, B. et al. (2019). CostMAP: An open-source software package for developing cost surfaces. LANL.
- Mapterhorn project. mapterhorn.com. BSD-3.
---
## 11. On-Network Traffic Intelligence
Two features that affect Valhalla segments (2–4) of the offroute chain, not the wilderness pathfinder (segment 1):
### Traffic-Aware Routing
- Valhalla supports time-dependent costing via traffic speed tiles
- TomTom traffic tiles already integrated in Navi at `/api/traffic/*` (currently visual overlay only)
- **Integration path:** configure Valhalla `traffic_tile_dir` to consume TomTom speed data so route calculations account for live congestion
- **Effect on offroute:** segments 2–4 (trail-to-road, road-to-road, road-to-home) would route around congested corridors
- Does NOT affect segment 1 (wilderness pathfinder)
### Idaho 511 Incident Feed
- Idaho 511 API provides real-time construction zones, accidents, and road closures
- Two integration points:
1. **Visual layer** — display incidents on Navi map as icons/overlays
2. **Routing barriers** — feed active closures to Valhalla as `avoid_locations` or edge exclusions so routes avoid closed roads
- **Implementation:** polling daemon (5–10 min interval), stores active incidents in `navi.db`, expires automatically when cleared
- Affects both standalone Valhalla routing and offroute segments 2–4
- **Stretch goal:** ingest other state 511 feeds for cross-state trips
### Sequencing
- Both features are post-offroute-core (after Phase O3)
- Can be built in parallel — traffic routing is Valhalla config, 511 is a new ingestion daemon + map layer
- Neither blocks wilderness pathfinder development