Unleash FME's hidden potential for Linear Referencing System (LRS) workflows. Learn how to work with FME's LRS tools to support your measures, events and route geometries. You'll also see how FME can switch between LRS datasets and a segmented LRS model, to allow others to view the data in more traditional GIS platforms. Plus, hear how Bo Guo of GISTEC is helping his customers use FME to solve their LRS problems.

1. Linear Referencing (LRS)
How FME Measures Up

2. Meet the Presenters
Mark Stoakes Dave Campanas Bo Guo
Dan Iseminger

3. Maximize the value of your LRS
data by combining information
based on location or measures.

4. Flash Demo!

5. FME®
Integration Platform
Connect. Transform. Automate.
FME Desktop FME Server FME Cloud
Build & Run Data Workflows Automate Data Workflows Automate Data Workflows
(Hosted)

6. Merge and Join ANY Type of Data

7. Data integration difficulties
often result from multiple
data formats.
Just because you have different
kinds of data, doesn’t mean they
can’t be brought together to solve
your data problems.

8. FME can be used to integrate data,
automate data delivery, and
ensure data quality.
Everything LRS needs.

9. Our Mission
To help you maximize the value of
your data.

10. Agenda
● LRS basics & overview
● LRS in the Real World with Bo Guo
● Segmentation & events
● Common LRS Tasks
● FME Toolkit
● Prerequisites for Success
● Straight Line Diagrams
With demos along the way!

11. ● The fence is referenced to Hwy 6,
from 2.0 km to 2.8 km
● The “Hwy 6” sign is an asset at 2.1 km
referenced to Hwy 6
Linear Referencing
Linear referencing is used to manage
infrastructure data related to linear
features, like pipelines, railways, highways
and powerlines, and related assets, like
valves, switches, signposts, towers.
LRS is also used to manage characteristics
along the linear assets, such as diameter,
number of tracks, surface type.
It’s like an addressing system for linear
infrastructure.

12. Common LRS Tasks
● Asset Management – Stationing Points
● Creating Routes or Network Linear
Elements (NLE)
● Adding Measures to Routes
● Creating Event Tables from Geometry
● Routes / Events 🡺 Segments
● Segments 🡺 Routes / Events
● Back / Ahead Measures
● Cardinal Orientation

13. LRS Real-World Example
The Tale of 3 Boundary Representations

14. LRS Infrastructure
Mileposts & Routes
GeoCode
District As Area
District As Lines
LRS Districts
Polygonization
MP Num Route ID LRS Measure Geom
1 I 008 1.001 Point w/ Measure
2 I 008 1.995 Point w/ Measure
30 SR 95 29.958 Point w/ Measure
...
Route ID Geom
I 008 LineString w/ Measure
US 89 MultiLineString w/ Measure
SR 95 MultiLineString w/ Measure
...
District ID Route ID From Measure To Measure Geom
1 I 008 0 21.003 LineString w/ Measure
2 I 008 21.003 100.015 LineString w/ Measure
1 SR 95 0 68.995 LineString w/ Measure
...
District ID Geom
1 Polygon
2 Polygon
3 Polygon
...
District ID Route ID From Milepost From MP Offset To Milepost To MP Offset
1 I 008 0 0 20 0.75
2 I 008 20 0.75 100 0.58
1 SR 95 0 0 69 .59
...

15. LRS Boundaries Area Boundaries

16. - Checkout Karol Francis’
FME-in-Transportation Talk
Youtube.comlinearbench
- Join FME-in-Transportation SIG on
LinkedIn
- Leverage LRS Custom
Transformers on FME Hub
Take-away Points
- LRS bridges spatial
and non-spatial
artifacts.
- The true power of
LRS is about
connecting silos
- FME is the perfect
LRS tool!

17. Linear Referencing vs. Segmentation
Segmented Geometry

18. Linear Features and Events
Event
Name
NLE Id Event From To
SpeedLimit 1 333 50 0 0.25
SpeedLimit 1 444 70 0.25 1
RoadWidth 1 111 13 0 0.75
RoadWidth 1 222 7.5 0.75 1
LRS Geometry + Events

19. Your LRS Toolkit

20. FME as an LRS Toolkit
LRS Focused Transformers
● MeasureGenerator
● MeasureExtractor
● MeasureSetter
● MeasureRemover
● Snipper
● LengthToPointCalculator
LRS on FME HUB by GISTIC
● LRS_Geocoder
● LRS_EventLineOnLine
● LRS_EventQCer
A Grabbag of Transformers
for LRS
● NeighborFinder
● LineCombiner
creates Paths
● TopologyBuilder
● LineOnLineOverlayer
● PointOnLineOverlayer
● PathBuilder
● PathSplitter

21. Prerequisites for LRS Success
● Clean Data
● Even Cleaner Data
○ Segments are noded and
connect
○ Complex edges a split at
intersections
● Handy Transformers for Clean-up
○ Snapper / AnchorSnapper
○ Intersector
○ TopologyBuilder
○ NetworkTopologyCalculator

22. Cardinal Orientation
● Primary Orientation of NLE
● Lower Left to Top Right
○ South to North
○ West to East
● CoordinateExtractor
● Orientor

23. Asset Mile Markers

24. Assigning Asset Mile Markers
● Lighting Asset Survey
○ Load contractor data into database
○ Clean-up:
Convert DMS Lat/Long to point geometry (Decimal Degree)
82 59 26.098235061 - 🡺 82.9905828430725
41 30 43.068175401 + 🡺 41.5119633820558
NUMBER LONGITUDE LATITUDE CONDITION TYPE TYPE_OF_LUMINARE VOLTAGE WATTS CONTROLCENTER
1 82 59 26.098235061 - 41 30 43.068175401 + Good NAV RED INCANDESCENT 120/12 9.24 61
2 82 59 26.563977418 - 41 30 43.362121522 + Good NAV GRN INCANDESCENT 120/12 9.24 61
3 82 59 27.002814710 - 41 30 43.641866642 + Good NAV RED INCANDESCENT 120/12 9.24 61
4 82 59 27.463651489 - 41 30 43.939960952 + Good NAV GRN INCANDESCENT 120/12 9.24 61
5 82 59 27.905565366 - 41 30 44.219406077 + Good NAV RED INCANDESCENT 120/12 9.24 61
6 82 59 28.380990900 - 41 30 44.520466955 + Good NAV GRN INCANDESCENT 120/12 9.24 61
7 82 59 28.820540125 - 41 30 44.791771643 + Good NAV RED INCANDESCENT 120/12 9.24 61
8 82 59 29.286365301 - 41 30 45.086728701 + Good NAV GRN INCANDESCENT 120/12 9.24 61
9 82 59 29.737492954 - 41 30 45.371434802 + Good NAV RED INCANDESCENT 120/12 9.24 61
10 82 59 25.384842845 - 41 30 43.722834132 + Good NAV RED INCANDESCENT 120/12 9.24 61

25. Assigning Asset Mile Markers
● Source Data:
○ Road Network (LRS)
○ Asset Data (Points)
● Assign to Assets:
○ Measures
○ Offsets
○ Route ID
● Automate with FME Server

26. Back / Ahead Measures
Accumulate Route Mileage (ARM) value
vs.
State Route Milepost (SRMP) value

27. Straight Line Diagrams

28. Straight Line Diagrams
Convert distance measures to percentage.
Point events are symbolized on axis line.
Linear events become bar graph.

29. For segmented data, use conversion techniques before creating diagram.
StraightLineDiagrammer transformer available in FME Store.
Straight Line Diagrams

30. Automating
With FME Server

31. Automating
Automate any of your workflows
with apps on FME Server.
Resources:
Getting Started with FME Server
Getting Started with FME Server
Workspace Apps
Getting Started with Gallery Apps
Webinar - Creating No Code Web Apps
with FME Server

32. Summary

33. By choosing the right
Transformer, you can
integrate your asset and your
LRS data more efficiently.

34. Summary
Linear Referencing - there’s lot’s of
flexibility in FME:
● Export assets to GIS LRS
● Assign measures to assets
● Switch between LRS & Segmented
views
● Straight Line Diagrams
Tip for success: Clean your data, then
clean it again

35. Get Started
Use a Transformer to
join your data.
Automate the process
so you can focus on
other tasks.
Free Trial | Upgrade
Gather your data.

36. Perpetual License Cloud Deployment
Licensing Options
● Includes permanent license
+ annual maintenance
● Designed for
smaller deployments
● Unlock enterprise automation
without the hassle of hardware
● Flexible pricing options
including hourly and annual
subscription
More info: safe.com/pricing
Enterprise Subscription
● Subscription program
● Ideal for cross-department
deployments

37. Thank you!
Get a free trial of FME at safe.com/trial
Connect with us for more FME

38. Agenda
● LRS basics & overview
● LRS in the Real World with Bo Guo
● Segmentation & events
● Common LRS Tasks
● FME Toolkit
● Prerequisites for Success
● Straight Line Diagrams
● Demos along the way

39. Linear referencing
Linear referencing is used to manage infrastructure
data related to linear features, like pipelines,
railways, highways and powerlines, and related
assets, like valves, switches, signposts, towers.
LRS is also used to manage characteristics along the
linear assets, such as diameter, number of tracks,
surface type.
It’s like an addressing system for linear
infrastructure.

40. The fence is referenced to Hwy 6,
from 2.0 km to 2.8 km
The “Hwy 6” sign is an asset at 2.1 km
Linear referencing: Associates attributes
(events) to locations (station points) or
portions of a linear feature (Route or Network
Linear Element)
Linear Referencing
Pipelines
Trains
Automobiles