landbase accuracy with cadastral editor

Landbase Accuracy with Cadastral EditorLandbase Accuracy with Cadastral Editor

City Makes Enhancements for Improved PlanningCity Makes Enhancements for Improved Planning

By Kristy M. Capobianco, GISP, RS&HDonald Terrell, GISP, City of Jacksonville Beach

ESRI International Users Conference: July 13 -17, 2009

Project Location and Area Description

Demographics• City of Jacksonville Beach

Area: 9.0 Square Miles

P l ti (2000) 20 990Population (2000): 20,990

• Neptune BeachArea: 2 45 Square Miles (Land)Area: 2.45 Square Miles (Land)

Population (2000): 7,270

Project Background

City of Jacksonville Beach in Northeast Florida Desired to Correct the Spatial and AttributeDesired to Correct the Spatial and Attribute Inaccuracies in their Landbase and ROWNearly 15 000 Parcels between Neptune BeachNearly 15,000 Parcels between Neptune Beach and Jacksonville BeachMajor Problems with Inaccurate Landbase:Major Problems with Inaccurate Landbase:• Delays with Infrastructure Projects due to

ROW Boundary IssuesROW Boundary Issues• Disputes over Property Lines• Issues with E911Issues with E911

Project Background

Changes to Landbase Over Time2008• Which is correct?

No Metadata

200820062006200520051997No Standards

No Confidence

1997

Solution

City of Jacksonville Beach Teamed with RS&H

Rectify Parcels and Right-of-Way Using New GIS T l C d t l EditGIS Tool – Cadastral Editor • Part of the Survey Analyst Extension

Project Flowchart

Data Cl U

Field DataC ll tiClean-Up Collection

C CPoints

CreatedAC: Convert Landbase Polylines

to ArcsAM: Build Fabric

Import Source Tool

Created

Polygons CreatedCreated

AC: Within GdbCreate New

C d t l F b iCadastral

Fabric

Import Fabric Data

Cadastral Fabric FabricImport

Control Pts

Data Clean-Up

Pseudo Nodes• Arbitrary Nodes Located Along the Parcel Vertex• Arbitrary Nodes Located Along the Parcel Vertex

Undershoots• Parcel Line Doesn’t Connect to Another Line (Leaving Gaps)

Data Clean-Up

Overshoots• Parcel Line is to Long (Leaving Dangling Nodes)• Parcel Line is to Long (Leaving Dangling Nodes)

Densified Arcs• Sequence of Many Straight Lines to Make a Curve

Other Data Clean-Up Issues

Inaccurate Parcel Splits/Extra Parcel LinesExtra Parcel LinesMissing Parcels or Parcel DimensionsParcel Size/Shape IssuesParcel Size/Shape Issues

Project Flowchart

Data Cl U


C CPoints



Import Source Tool

Created




Fabric

Import Fabric Data


Control Pts

Field Data Collection

Divided Project Area into 14 Grid SectionsSections• Collected Minimum of 2 Points per

Grid Section

Trimble GeoXH handheld• BenchmarksBenchmarks• Fire Hydrants• Light PolesLight Poles

Survey Control Points of Lot Corners

Cadastral Fabric Defined

A cadastral fabric is a seamless parcel boundary network which is created andboundary network, which is created and maintained using data from survey records. Parcels are represented by parcel line features parcel point features and parcelfeatures, parcel point features and parcel polygon features, referred to in aggregate as parcel features. Parcel topology in the cadastral fabric is stored explicitly throughcadastral fabric is stored explicitly through shared or common parcel point features.

ESRI 2009: http://www.esri.com/software/arcgis/geodatabase/data-storage.html

Cadastral Fabric Defined

4 Methods for Adding Parcel Data into the Fabric:Fabric:• Migrate Existing Data• Create New Parcels with the ParcelCreate New Parcels with the Parcel

Traverse• Build Parcels from Construction Lines• Append Parcel Data from a Cadastral

XML file

Cadastral Fabric Construction

Data Cl U


C CPoints



Import Source Tool

Created




Fabric

Import Fabric Data


Control Pts

Cadastral Fabric Construction

ArcMap

Build Fabric Import S T l

A C t l

Source Tool

ArcCatalog

Parcel Rectification

DatasetsP l A t ti• Parcel Annotation

• High-Resolution AerialsE i ti L db• Existing Landbase

• Control Points and Survey DataPl i t i• Planimetric


Identify Errors


Discrepancies LocatedLocated• Start Edit

Session• Select Parcel

Block• Cadastral Editor• Cadastral Editor

ToolbarModify FeatureS l t P lSelect ParcelsUnjoinEdit DimensionsAccept ChangesFinish Job


Comparison of Old Landbase to New Landbaseto New Landbase


Corrected Parcels

Project Highlights

Advanced Parcel Editing Tool Offers New Solution for Improving Property Line and RightSolution for Improving Property Line and Right-of-Way Information

Incorporating GPS Benchmarks and ControlIncorporating GPS Benchmarks and Control Points Collected in the Field, the Team Improved Existing Parcel Information with their Known gLocations and Dimensions

Landbase Enhancements have led to Improved pPlanning and Public Safety Services for the City

Next Steps

Incorporate Zoning Boundaries• Interactive Web-Mapping Application Available to the

Public

Electric Database UpdateElectric Database UpdateCenterline Update• Improved E911 ServicesImproved E911 Services

Thank You

Questions/Comments Please Contact:

Kristy M. Capobianco, GISPReynolds, Smith and Hills, Inc.

[email protected]

William C. Mann, AICPCity of Jacksonville BeachCity of Jacksonville [email protected]

904-247-6231

Donald Terrell, GISPCity of Jacksonville Beach

[email protected] 247 6261904-247-6261

landbase accuracy with cadastral editor

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