Speed Limits

This dataset lists the maximum speed limits throughout Calgary. It does not list the default residential speed limit of 40 km/hr, which was reduced from 50 km/h to 40 km/h effective May 31, 2021. This dataset is used for identification and is not considered an official record of speed limits for any given time. It is not used for enforcement purposes.

Querying over HTTP

Splitgraph serves as an HTTP API that lets you run SQL queries directly on this data to power Web applications. For example:

curl https://data.splitgraph.com/sql/query/ddn \
    -H "Content-Type: application/json" \
    -d@-<<EOF
{"sql": "
    SELECT *
    FROM \"calgary-ca/speed-limits-2bwu-t32v\".\"speed_limits\"
    LIMIT 100 
"}
EOF

See the Splitgraph documentation for more information.