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TRANSCRIPT
Validating Linear Reference EventsHarry Zhu
Francisco Perez
Agenda
• Linear Referencing
• What is Data Reviewer
• Invalid Events Check
• Reviewer checks supporting Linear Referencing
• Event on Event Check
• Known Limitations
• Road Ahead
• Where to learn more..
Validating Linear Reference EventsLinear Referencing
What is Linear Referencing?
ArcGIS Data Reviewer
Automate, simplify, standardize and unify workflows to improve data quality
Increase transparency
Lower data management costs
Streamline quality control workflows
Implement repeatable processes
Reduce risk in decision-making
Validating Linear Reference Events
Invalid Events
Industry
• Roadway Management
• Pipeline Management
ArcGIS DesktopArcGIS Pro
• Orphan Events
• Invalid Measure
Values
• Event Gaps
• Event Overlaps
Invalid Events (Error Scenarios)Orphans
Route0 10
0
Event does not have an
associated route
Speed Limit EventRoute
Events
Error
Geometry
(R1 - routeSourceFC)
LEGEND
10
?
ArcGIS Desktop
ArcGIS Pro
Invalid Events (Error Scenarios)Invalid Measures Invalid Event Error Scenarios
Route0 10
0
Event greater than maximum
measure
Speed Limit Event
Route
Events
Error
Geometry
(R1 - routeSourceFC, ObjectID - OID) 15
LEGEND
Events spanning one route
Invalid Events (Error Scenarios) Gaps
Route0 10
0 4 6 10
Event 10
Gap between measure 4 to 6
Event 11Route
Events
Error
Geometry (R1 - routeSourceFC, ObjectID - OID)
LEGEND
Gap Error Scenarios
Events spanning multiple routes
Events spanning one route
Invalid EventsOverlaps
0 10
75 10
55 MPH
Overlap between measure 5 to 7
70 MPH
(R1 - routeSourceFC, ObjectID – OID, Event
OIDs)
Route
Events
Error
Geometry
0
Overlap Error Scenarios
Route
Events spanning one route
Events spanning multiple routes
Harry Zhu
Invalid Events
Demo
Available checks to support Linear Referencing
- Monotonicity
- Cutbacks
- Geometry and Geometry
- Evaluate Polyline
- Non-Linear Segment
- Duplicate Geometry
- Invalid Geometry
- Multipart Line Check
- Domain
- Execute SQL
Harry Zhu
Monotonicity
Demo
Validating Linear Reference Events
Event on Event Check
Industries
• Roadway Management
• Pipeline Management
ArcGIS Pro
• Invalid
Combination of
Events
Harry Zhu
Event on Event
Demo
Known Limitations
• Invalid Events
- No Support for Route Dominance
(Roadway Management)
- No support for tables
• Event on Event
- Copy & Paste of query
expressions not available
Validating Linear Reference Events
– Road Ahead
- Support of Service based model
platform (Validation Rules)
Future Releases
See Us Here
Thursday
ArcGIS Data Reviewer: Advanced Data Validation Room 30 E 08:30 am - 09:30 am
Data Reviewer
Info
Want to learn more?
• Data Reviewer templates
- Local government
- Topographic mapping
- Utilities
- Electric
- Gas
- Water
- Water resources
• Based on Esri industry models
• Use as starting point
ArcGIS Data Reviewer: An Introduction
solutions.arcgis.com
Want to learn more?
• Documentation
- Desktop desktop.arcgis.com
Want to learn more?
• Documentation
- Desktop
- Server
enterprise.arcgis.com
Want to learn more?
• Documentation
- Desktop
- Server
• Training
http://esriurl.com/15503
Want to learn more?
• Documentation
- Desktop
- Server
• Training
• GeoNet Community
http://esriurl.com/15504
Please Share Your Feedback in the App
Download the Esri
Events app and find
your event
Select the session
you attended
Scroll down to
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survey
Complete the survey
and select “Submit”
Questions ?