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Updating the MAF/TIGER DB. Batch and Interactive processes. John S. Liadis Update Operations Branch. Current Update Strategies. Conflation (MTAIP) Batch (BFUS) Interactive (using GATRES) Interactive & Batch (using ArcDesktop ) Edit Based (TAGIT, Business Rules, etc.).

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Updating the MAF/TIGER DB

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Updating the maf tiger db

Updating the MAF/TIGER DB

Batch and Interactive processes

John S. Liadis

Update Operations Branch

Current update strategies

Current Update Strategies

  • Conflation (MTAIP)

  • Batch (BFUS)

  • Interactive (using GATRES)

  • Interactive & Batch (using ArcDesktop)

  • Edit Based (TAGIT, Business Rules, etc.)

Proposed update strategies

Proposed Update Strategies

  • Volunteer Geographic Information (VGI)

  • Web Feature Service

Updating the mtdb

Updating the MTDB

  • A recent example of a major operation providing updates to the MTDB was the 2009 Address Canvassing Operation. More than 140,000 enumerators collected addresses in the field as well as spatial information. More than 2.7 million updates including 623,000 added road features and 758,000 deleted road features were submitted for processing.

  • The Geo processed the updates through the Batch Features Update System (BFUS)

Feature update return statistics

Feature Update Return Statistics

Number of Records by Action and Capture Methodology

Flow of mtdb update operations thru bfus

Flow of MTDB Update Operations thru BFUS

Distribution of updates from adcan

Distribution of Updates from ADCAN

Feature add issues

Feature Add Issues

Of all added features:

  • 53.4% were automatically added to the MTdb.

  • 20.7% were added to the MTdb after review.

  • 26.0% were reviewed interactively, of these:

    - one half were rejected as unnecessary updates (13% of all road feature adds)

What is gatres

What is GATRES?

  • GATRES is the interactive COTS software tool that allows the user to create, modify, and view boundaries, linear features, address ranges, areal features, etc., in the MTDB.

  • GATRES is “A Work in Progress”

  • Additional functionality will be available in future releases

Topological building blocks

Topological Building Blocks





Basic topology in gatres

Basic Topology in GATRES

Gatres fundamentals

GATRES Fundamentals






Database Controls and

Application Settings

Gatres navigation tools

GATRES- Navigation Tools








  • The MTDB is updated

    • from a variety of ongoing update operations including BAS and ACS.

    • by a variety of update methods including interactive and batch updates derived from field update instrument capture, partner provided files, interactive targeted updates, edit reconciliation, etc.

    • using the Batch Feature Update Software and the GATRES software in combination with edits, local files, field updates, office updates using a variety of devices and software.



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