NZTA Traffic

Query real-time NZ state highway traffic conditions from the Waka Kotahi NZTA Traffic and Travel API. Use when checking road events, incidents, closures, roa...

Query the Waka Kotahi Traffic and Travel REST API for real-time state highway conditions across New Zealand.

Quick Start

Check road events for a region:

scripts/nzta-traffic.sh --region Wellington

Check a specific highway:

scripts/nzta-traffic.sh --journey 10

Check traffic cameras in a region:

scripts/nzta-traffic.sh --cameras --region Wellington

Script Usage

scripts/nzta-traffic.sh [options]

Options:
  --region <name|id>    Region name or ID (e.g. "Wellington" or "9")
  --journey <id>        Journey/highway ID (e.g. 10 for SH1 Wellington)
  --bbox <minlon,minlat,maxlon,maxlat>  Bounding box query
  --cameras             List traffic cameras instead of events
  --list-regions        List all region names and IDs
  --list-journeys       List journeys for a region (requires --region)
  --json                Output raw JSON instead of formatted summary
  --zoom <level>        Geometry zoom level, -1 for no geometry (default: -1)

Region and Journey Lookup

Run --list-regions to get region IDs, then --list-journeys --region <name> to find highway journey IDs for that region.

Common Wellington region journeys: SH1 (ID 10), SH2 (ID 9), SH58 (ID 12), SH59 (ID 341).

For full endpoint reference and response field descriptions, see references/api-endpoints.md.

Event Impact Levels

• Closed — road is closed
• Major delays — significant delays expected
• Minor delays — some delays
• Caution — be aware, proceed carefully
• Watch and observe — informational

Notes

• API base: https://trafficnz.info/service/traffic/rest/4/
• No authentication required
• Returns JSON with Accept: application/json header
• Empty response ("response": "") means no active events — that's good news