BARI Publishes 2017 Version of its Geographical Infrastructure for the City of Boston
BARI has published the 2017 version of its Geographical Infrastructure for the City of Boston on the Boston Data Portal. The Geographical Infrastructure is a hierarchical database that organizes Boston at 17 different geographical levels–including land parcels, streets, census geographies, and other administrative regions. This structure enables aggregate calculations from lower levels to higher levels and the linkage of data from different sources that reference the same geographical units. In particular, the database makes it possible to coordinate data sets generated by City agencies with census data.
Type of Construction for Land Parcels in South Boston Waterfront in 2015, based on Approved Building Permits.
A major revision to this year’s version is the use of the City’s Property Assessments as the basis for identifying and mapping properties and land parcels. In past years, these levels were based on the Master Address List, but recent examinations by both BARI and the City of Boston uncovered redundancies and errors in the Master Address List. The transition to Property Assessments has made for more precise geocoding and linkage to containing census geographies. As importantly, it has allowed us to include a new element not available in previous versions of the Geographical Infrastructure: a mappable shapefile for land parcels that enables the visualization of address-level characteristics with actual building footprints.
To explore the data on the Boston Data Portal, click here.
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