San Francisco Mid-Block Points for Geomasking and Anonymization

San Francisco mid-block points represent calculated midpoints for each street segment in the city. The dataset is created by the City of San Francisco from its active and retired street data and is updated weekly. It is designed for geomasking workflows, replacing exact addresses with nearby anonymized points.

Use Cases

• Perform address-level geomasking based on calculated block midpoints.
• Anonymize location data for public health or social science research using the provided geographic points.
• Integrate anonymized points into urban analytics workflows that require aggregated, non-precise location data.

Strengths

• Dataset is updated weekly, suggesting regular maintenance.
• Creation method is explicitly documented, involving calculation from the authoritative 'Streets - Active and Retired' dataset.
• Spatial coverage is clearly defined as the City of San Francisco.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

City of San Francisco

Collection Method

Calculated from the midpoint of each street segment in the 'Streets - Active and Retired' dataset.

Freshness

Updated weekly.

Geography

City of San Francisco, California, USA