BNSF Railway

Schematic Generation from GIS2011 Geospatial Solutions Conference

April 12, 2011

Presented by Ben Smith, Engineer Maps & Records

The Track Chart

Track Charts & Data

Track Charts have always been driven by data.

Alignment and grade

Rail, Ties, Ballast

Other Physical and Operational Attributes

Chicago Great Western Rwy, 1927

BNSF Railway, 2008

Dynamic Nature of Data

This data has the chance to change every business day.

Construction and Expansion

Maintenance Activity

Operational Updates

The “Track Chart” Dilemma

How  to  provide  “up  to  date”  Track Charts with a minimal

amount of manual interaction?

When  your  only  tool  is  a  hammer…all your problems resemble nails.

Sources of Track Chart Data

Network Control

Signal Data

Roadway Information

System

Maintenance Data

Structures

Bridge & Culvert Data

GIS Data Integration

Potential Track Chart Data

Engineering GIS Database

Track Network, Connectivity & Reference Information

The Forgotten Data Source

The existing Track Chart CAD files

The “Schematic” Answer

Find new tools to solve the issue.

Query the network data from GIS

Automate the generation of Track Charts

Pull from existing non-spatial data sources

Extract data from CAD files

The Big Picture

Extractor

Iteration

TrackCharts

XML DocumentXML Document

XML Document

CADFilesCAD

FilesCADFiles

The Extraction Tool

XML Defined

XML output to drive the process

XML (Extensible Markup Language) is a set of rules for encoding documents electronically. It is defined in the XML 1.0 Specification produced by the W3C and several other related specifications; all are fee-free open standards.

The Extracted XML

Iteration

XML DocumentXML Document

XML DocumentRoute ID (line segment)

Track NumbersPage Begin MilepostPage End Milepost

Provides the data to build queries.

The Base XML<CHART line-segment="Line Segment 7100" page="10" subdivision="Emporia Subdivision"

left-station="Wellington, KS" right-station="Kansas City, MO" revised="Revised: 10/10/2008" dgn-file="EMP010.DGN" railroad="" dgn-path="trkchrts/dgn/04-Kansas/Emporia" pdf-file="Emporia.pdf" pdf-path="trkchrts/pdf/Kansas">

<REGIONS><REGION line-segment="7100" min-mp="180" min-mp-x="26400.5" max-mp="185" max-mp-

x="0.5" right-to-left="IMPL" west-is-left="WL" tracks="12" ss-visible=""><MILES><MILE mp="180" ss="10230+58" line-x="26400.5" feet-per-mile="5280'" feet-per-mile-

visible="" /><MILE mp="181" ss="10283+38" line-x="21120.5" feet-per-mile="5280'" feet-per-mile-

visible="" /><MILE mp="182" ss="10336+18" line-x="15840.5" feet-per-mile="5280'" feet-per-mile-

visible="" /><MILE mp="183" ss="10388+98" line-x="10560.5" feet-per-mile="5280'" feet-per-mile-

visible="" /><MILE mp="184" ss="10441+78" line-x="5280.5" feet-per-mile="5280'" feet-per-mile-

visible="" /><MILE mp="185" ss="10494+58" line-x="0.5" />

</MILES></REGION>

</REGIONS></CHART>

The Iteration Tool

The Iteration Process

Iteration

TrackCharts

XML DocumentXML Document

XML Document

The .XTQ file

Comprised of all the SQL queries for a specific page.

Executes typical non spatial queries

Executes spatial queries utilizing Spatial Extender

Creates a collection of global temporary tables

IBM DB2 Spatial Extender Defined

Included on current installations of DB2

DB2 Spatial Extender extends the function of DB2 with a set of advanced spatial data types that represent

geometries such as points, lines, and polygons and many functions and features that interoperate with those new

data types.

Viewing the .XTQ

SQL with Spatial Extender

NEARS5 as (SELECT DISTINCTS.REGION_NBR,T.OBJECTID,T.LINE_SEG_NBR,T.TRACK_SDTK_NBR,T.TRACK_TYPE,T.MILE_POST_BEG,T.MILE_POST_END,T.CO_ABBR,db2gse.ST_Length(T.SHAPE, 'US FOOT') as LENGTHFROMGGADMIN.FTRACK_ENG_LIN as T,SHAPE50 as SWHERE db2gse.ST_Intersects(T.SHAPE,

db2gse.ST_Buffer(S.SHAPE,5,'US FOOT'))=1and (T.effective_ts <= current timestamp or T.effective_ts is null)and (current timestamp < T.expire_ts or T.expire_ts is null))

Spatial Extender to Select Tracks

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Spatial Extender to Select Tracks

Spatial Extender to Select Tracks

Spatial Extender to Select Tracks

Spatial Extender to Select Tracks

Spatial Extender to Select Tracks

Spatial Extender to Select Tracks

Spatial Extender Selecting Turnout

Trk: 0807N159.248 (10)

Spatial Extender Selecting Track

REFSHAPE as (SELECT REGION_NBR, REGION_LSEG, REGION_BEG,

REGION_END,db2gse.ST_ToMultiLine(db2gse.st_generalize(db2gse.ST_MeasureBetween(db2gse.ST_ToMultiLine(db2gse.st_generalize(db2gse.ST_GetAggrResult(Max(db2gse.ST_BuildUnionAggr(SHAPE))

),0.0)

),REGION_BEG, REGION_END),0.0

)) as SHAPE

Spatial Extender Selecting Turnout

Trk: 0807N159.248 (10)

Spatial Extender Selecting Turnout

Trk: 0807N159.248 (10)

Advanced Turnout Validation

Trk: 0807N159.248 (10)

EnterExitAlt

Spatial Extender Creating Points

WITHFEET5PTS3X as (SELECTREGION_NBR,TOOBJECTID,TKOBJECTID1,db2gse.ST_PointFromText(POINT1, SRID) as POINT1,TKOBJECTID2,db2gse.ST_PointFromText(POINT2, SRID) as POINT2,TKOBJECTID3,db2gse.ST_PointFromText(POINT3, SRID) as POINT3FROM SESSION.NEARBY),

Spatial Extender with Distance

FEET5PTSN as (SELECT REGION_NBR, TOOBJECTID,POINT1 as ENTRANCE_PT, TKOBJECTID1 as NTRANCE_TKOID,POINT2 as EXITA_PT, TKOBJECTID2 as EXITA_TKOID,POINT3 as EXITB_PT, TKOBJECTID3 as EXITB_TKOID,db2gse.ST_Distance (POINT1, POINT2, 'US FOOT')+db2gse.ST_Distance (POINT1, POINT3, 'US FOOT') as DISTSUM FROM FEET5PTS3XUNION ALL

SELECT REGION_NBR, TOOBJECTID,POINT2 as ENTRANCE_PT, TKOBJECTID2 as NTRANCE_TKOID,POINT1 as EXITA_PT, TKOBJECTID1 as EXITA_TKOID,POINT3 as EXITB_PT, TKOBJECTID3 as EXITB_TKOID,db2gse.ST_Distance (POINT2, POINT1, 'US FOOT')+db2gse.ST_Distance (POINT2, POINT3, 'US FOOT') as DISTSUM FROM FEET5PTS3XUNION ALL

SELECT REGION_NBR, TOOBJECTID,POINT3 as ENTRANCE_PT, TKOBJECTID3 as NTRANCE_TKOID,POINT1 as EXITA_PT, TKOBJECTID1 as EXITA_TKOID,POINT2 as EXITB_PT, TKOBJECTID2 as EXITB_TKOID,db2gse.ST_Distance (POINT3, POINT1, 'US FOOT')+db2gse.ST_Distance (POINT3, POINT2, 'US FOOT') as DISTSUM FROM FEET5PTS3X

Spatial Extender Point Measures

FEET5LABELED as (SELECT A.REGION_NBR, A.TOOBJECTID,ENTRANCE_TKOID, EXITA_TKOID, EXITB_TKOID,db2gse.ST_M(ENTRANCE_PT) as ENTRANCE_M,db2gse.ST_M(EXITA_PT) as EXITA_M,db2gse.ST_M(EXITB_PT) as EXITB_MFROM FEET5PTSN as AJOIN (SELECT REGION_NBR, TOOBJECTID,

MAX(DISTSUM) as DISTMAXFROM FEET5PTSNGROUP BY REGION_NBR, TOOBJECTID) as M

ON A.REGION_NBR = M.REGION_NBRAND A.TOOBJECTID = M.TOOBJECTIDAND A.DISTSUM = M.DISTMAX),

The .XTR File

The .XTC File

The .SVG File

SVG Defined

An open standard developed by W3C

Scalable Vector Graphics (SVG) is a family of specifications of an XML-based file format for describing two-dimensional vector graphics, both static and dynamic

(i.e. interactive or animated).

The Flexibility of SVG

SVG is XML based, simple in structure, and dedicated to graphics.

Easy to utilize in the TCAP screens or other apps.

Existing transforms for PDF, DGN, DWG, etc.

Already in use for web and mobile applications

The PDF Output

Track Chart & GIS Data Together

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For Additional Information

World Wide Web Consortium (W3C)http://www.w3.org/

XML - http://www.w3.org/standards/xml/

SVG - http://www.w3.org/Graphics/SVG/

Microsoft XML Notepadhttp://www.microsoft.com/downloads/en/default.aspx

IBM DB2 Spatial Extenderhttp://www-01.ibm.com/software/data/spatial/db2spatial/

Questions or Comments