Data · dataset · 2019
Speed Limits per Street Segment
Listed in DataSF Open Data Portal
A. SUMMARY Maximum speed limits per street segment for the City of San Francisco.
Description
Speed limits are indicated primarily for streets that have speeds greater than 25 MPH, unless the speed limit has been changed from a higher speed or a speed survey has been conducted to enforce the de facto speed limit of 25 MPH. 25 MPH is the de facto speed limit for most residential and commercial streets, and apply to streets on this map denoted by a 0 MPH label.
Alleys narrower than 25 feet can have de facto speed limits of 15 MPH. Segments labeled 99 MPH are portions of interstates or freeways. B. METHODOLOGY Speed limit legislation information is taken from MTAB legislation and in some cases directives from engineers in the 5212 classification.
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Speed limit implementation information is taken from SSD Shops Reports and then parsed via python code. Implementation for speed limits will specify when signs are put in stating the new speed limits, and the work order that the sign installation was spec'd in. C. UPDATE FREQUENCY Updated quarterly or on an as need basis by request.
Links
Get the data
- CSV data.sf.gov/api/views/3t7b-gebn/rows.csv?accessType=DOWNLOAD ↗
download · from data sf gov
Where it is published
- DataSF Open Data Portal dataset page data.sf.gov/Transportation/Speed-Limits-per-Street-Segment/3t7b-gebn ↗
landing page · from data sf gov
Catalogue records · 1
- SODA API data.sf.gov/resource/3t7b-gebn.json ↗
metadata API · from data sf gov
Topics
- Stated by source
- Transportation
- From keywords
- Engineering
Related
- Possibly the same asSpeed Limits per Street Segment
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| DataSF Open Data Portal | 3t7b-gebn | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data sf gov | connector:data_sf_gov@1.0.0 | |
| concepts[field].local:field:engineering | mapping · data sf gov | connector:data_sf_gov@1.0.0 | |
| concepts[topic].socrata_category:data_sf_gov:transportation | source · data sf gov | connector:data_sf_gov@1.0.0 | |
| created_date | source · data sf gov | connector:data_sf_gov@1.0.0 | |
| description | source · data sf gov | connector:data_sf_gov@1.0.0 | /resource/description |
| license | source · data sf gov | connector:data_sf_gov@1.0.0 | |
| publication_date | source · data sf gov | connector:data_sf_gov@1.0.0 | |
| title | source · data sf gov | connector:data_sf_gov@1.0.0 | /resource/name |
| updated_date | source · data sf gov | connector:data_sf_gov@1.0.0 |