Transport Department traffic speed (segment-level)

GET

/api/v1/data-gov-hk/traffic/speed

Last modified:2026-05-10 09:22:39

Maintainer:Not configured

OperationId:data_gov_hk_traffic_speed

Segment-level traffic speed across the Hong Kong strategic road network, published by the Transport Department. Response contains per-segment speed observations, a validity flag (Y = observed, N = default / posted limit) and the TD IRN version. Sugra computes the mean speed across segments flagged valid. Upstream refreshes every two minutes; Sugra caches for five minutes.

Request

Authorization

API Key

Add parameter in header

x-api-key

Example:

x-api-key: ********************

Header Params

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

Responses

🟢200

application/json

Per-segment speed observations across the Hong Kong strategic road network.

Bodyapplication/json

Example

{
    "data": {
        "date_hkt": "string",
        "time_hkt": "string",
        "irn_version": "string",
        "segment_count": 0,
        "valid_segment_count": 0,
        "average_speed_kph": 0,
        "segments": [
            {
                "segment_id": "string",
                "speed_kph": 0,
                "valid": "string"
            }
        ]
    },
    "meta": {
        "endpoint": "/api/v1/fred/us/cpi",
        "data_time": "2026-04-16T14:30:00Z",
        "response_time": "2026-04-16T14:30:12Z",
        "provider": "Sugra API v1.0.1",
        "source": "string",
        "fallback_used": true,
        "fallback_chain": [
            "string"
        ],
        "cached": true
    }
}

🟠401

🟠429

🔴503

Modified at 2026-05-10 09:22:39

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