Annual Quarter-Hourly Speed Profiles
Overview
The quarter-hourly speed profile table contains information about the average observed speed per network link, provided in quarter-hourly buckets for a typical week. This data is updated annually. Data is available for download in CSV format.
See what coverage we have in specific areas here.
| Highway | Quarter-hourly speed profile % Coverage in 2025 data Percentage of segments providing speed values for over 2/3 of quarter-hour buckets |
|---|---|
| Motorway | 99% |
| Trunk | 99% |
| Primary | 99% |
| Secondary | 98% |
| Tertiary | 89% |
| Residential | 37% |
| Other | 21% |
Sample Download
Click here to download a sample of Replica's quarter-hourly speed profile per network link table.
Schema
| Field name | Content Type | Sample Value | Description |
|---|---|---|---|
| stable_edge_id | String | 6544473848226082043 | A unique identifier for each road segment. |
| osm_id | String | 5149900 | OSM Way ID (version 2021-09-01 for the 2021 data; version 2022-12-01 for the 2022 data) |
| street_name | String | Scenic Avenue | The common name of the network link if available. Matches the name assigned by OpenStreetMap. |
| highway | String | secondary_link | The classification of the link based on OpenStreetMap data if available. |
| length | Float | 29.46 | The length of the network link in meters. |
| lanes | Integer | 2 | The number of lanes in the network link. |
| heading | Integer | 121 | The heading of the network link. |
| compass_direction | String | SW | The compass direction of the network link. |
| geometry | String | LINESTRING(-122.279327301964 37.8109962748959, -122.279142155032 37.8109143185075, -122.279041013398 37.8108588116808) | The geometry of the network link. |
| speed_limit_mph | Integer | 45 | Speed limit of the network link in miles per hour. |
| free_flow_speed_mph | Integer | 48 | Free-flow speed for the network link in miles per hour. |
| mon_0, mon_1...mon_95 | Float | 66.2 | One column per quarter hour. The value in each column represents the speed on the network link in the quarter-hour bucket. Buckets are expressed as 0-95 and are counted from midnight. If a specific day of the week is chosen for download, the column names will reflect the day of week (e.g. mon_0, tue_0, wed_0). If an "Average Weekday" or "Average Weekend Day" is selected for download, the columns will be named wkdy_0...wkdy_95 and wknd_0...wknd_95 respectively. The average weekday values are averaged over Monday to Friday; the average weekend values are averaged over Saturday and Sunday. |
Quality Metrics and Methodology
Read about the Quality Metrics and Methodology on the overview page for Replica's Annual Speeds Data.
Updated 29 days ago