1 c. tyler dick, p.e. university of illinois at urbana-champaign copyright c. tyler dick, 2012 –...

1

Rail Project Design with InRailModule 3-D

C. Tyler Dick, P.E.University of Illinois at Urbana-Champaign

Copyright C. Tyler Dick, 2012 – All Rights Reserved

2

Track Design

Railway geometry is designed with a specialized application running within a CAD program

InRail or Geopak most commonBoth run inside MicroStationCivil3D within AutoCAD is also used


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CAD Platform vs. Rail Software

MicroStation CAD platformGenerates, manipulates and prints graphicsDisplays aerial images, backgroundsLayer drawings into design plans

InRail or Geopak Design SoftwareIntelligent “brains & math” behind graphicsTies track alignment and profile geometry to graphicsStores elevation and terrain model data for existing ground and proposed subgrade surfaces


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MicroStation vs. AutoCAD

Early days of computing, method of math processing leads to efficiency in certain areas

MicroStation for large spatial civil projects

AutoCAD for detailed mechanical design

Many State DOTs adopted MicroStation

Railways and consultants did the same

Some structures work with AutoCAD, used for rail design in states with “AutoCAD DOTs”

MicroStation and AutoCAD interfaces converging over time… MS v8i offers complete cross-functionality


5

InRail vs. InRoads

Bentley InRail is a specialized version of the InRoads highway design software95% of the commands and functions are the sameSame workflowInRail offers additional capability for turnouts, superlevation, rail design criteria


66Turnout commands Rail design options


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Detailed Rail Design Workflow

Aerial and ground surveyGeotechnical field investigationTrack design

Horizontal and vertical geometrySubgrade, earthwork and basic drainageCulverts and special ditchesRoadway crossings and signage

Bridge and facilities design support

InRail


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Existing Ground Model

SurveyContours and topo information provided in AutoCAD or MicroStation formatAerial images may also be provided

Use InRail and survey drawing to create 3D model of existing ground

Digital Terrain Model or “DTM”Network of triangles represents the surface


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Digital Terrain Model (DTM)


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Geometry Design Steps

Preliminary RouteDetailed Topo

Horizontal Alignment

Vertical Alignment (Profile)

DTM

Preliminary SubgradeEarthwork Quantities

Typical Section

Preliminary Limits ofCut and Fill

Preliminary ROW Final Geometry (H&V)

In ROW?

Balanced?

Grades OK?


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Horizontal Design

Can set design criteria to auto-generate curves, spirals and super elevation based on track design speed and maximum super elevation


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Vertical Profile Design

Design vertical curves by “R” value for track designCan also automate with design criteria


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Earthwork Design Steps

DTM & Typical Section TemplateFinal Geometry

Corridor & Preliminary Earthwork Model

Set Special Ditch Profiles

Detailed Earthwork Model

Final Limits ofCut and Fill

Final ROW Final Cross Sections

In ROW?

Hydraulic check

Final Quantities


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Subgrade Design Template

Define subgrade and ditch width, side slopes


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Corridor Modeler

Assign templates to horizontal and vertical geometry

Preview cross sections

Plan

Profile

X-section


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Create Surface

Templates create 3-D proposed subgrade earthwork surface

Cut with Ditches

Fill


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Locomotive cab perspective view of proposed and existing earthwork surfaces

Drive Roadway

Cut with Ditches

Fill

ProposedCenterline


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Culvert Design Steps

Detailed earthwork model and DTM combined into proposed terrainDrainage area analysis determines flows and culvert locationsCulverts sized using hydraulic analysis programs outside CAD


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Remaining Design Steps

Roadway crossingsLayout of panels, protection devicesHorizontal and vertical reconstructionCulverts to carry ditches under roadways

Locate signage, derails, bumping postsCoordinate with bridge and/or facilities designers

Railway geometry and earthwork sections

Quantities & Cost Estimates


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Planset Creation

Project LayoutGeometry and Quantity SummariesTypical SectionsPlan and Profile

Track Culvert Roadway

Cross SectionsStandard DetailsSign LayoutsGrade Crossing LayoutsDrainage Area MapBridge/Facility Drawings

Standard CAD tools used to create sheets from rail design program output


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Sample Plan and Profile Sheet


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Availability

MicroStation v8i and InRail (Bentley Rail Track v8i) are available on a student/faculty academic license from BentleyIndividual and institution licenses availablewww.bentley.com

Training & learningAcademic program

EducatorsStudents


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Copyright Restrictions and Disclaimer

Presentation AuthorTyler DickProfessional Associate, Engineer-RailHDR Engineering600 West 6th Street, Suite 100 | Fort Worth, TX 76102 [email protected] | hdrinc.com…….

It is the author’s intention that the information contained in this file be used for non-commercial, educational purposes with as few restrictions as possible. However, there are some necessary constraints on its use as described below.

Copyright Restrictions and Disclaimer:The materials used in this file have come from a variety of sources and have been assembled here for personal use by the author for educational purposes. The copyright for some of the images and graphics used in this presentation may be held by others. Users may not change or delete any author attribution, copyright notice, trademark or other legend. Users of this material may not further reproduce this material without permission from the copyright owner. It is the responsibility of the user to obtain such permissions as necessary. You may not, without prior consent from the copyright owner, modify, copy, publish, display, transmit, adapt or in any way exploit the content of this file. Additional restrictions may apply to specific images or graphics as indicated herein.

The contents of this file are provided on an "as is" basis and without warranties of any kind, either express or implied. The author makes no warranties or representations, including any warranties of title, noninfringement of copyright or other rights, nor does the author make any warranties or representation regarding the correctness, accuracy or reliability of the content or other material in the file.


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Rail Traffic Controller (RTC)

Line-of-Road Simulation Tool

C. Tyler DickUniversity of Illinois

Copyright Samuel L. Sogin, 2012 – All Rights Reserved

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What is Rail Traffic Controller (RTC)?

Network capacity analysis model

“RTC is a powerful software package that dispatches trains using the same elements as a human dispatcher.”


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RTC Permits “What If?” Analysis

What if? analysesAdding Infrastructure

SidingsSignalsDouble track

Operational changes

ReroutingHigher volumesShorter dwells

Future Case “What-if”

Future Case “What-if”

SchedulesSchedulesMix Impact

Mix Impact

GrowthGrowth Market ShiftMarket Shift

High Speed Rail

High Speed Rail Train SizeTrain Size


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Who uses RTC?


28

Chicago Gateway (CREATE)


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RTC Architecture

Network

Track LayoutSignals

SwitchesSpeed Limits

GradesCurvature

Network

Track LayoutSignals


GradesCurvature

Trains

Origin and DestinationsDwells

Crew ChangesLocomotives

ConsistPriorities

Trains



ConsistPriorities

Meet/Pass Logic

Internal Train Performance

Calculator


Calculator

PrioritiesPriorities

OutputsOutputs


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User can specify many link and node characteristics

Built of link and nodes Link Types

— Foul — Crossover — Turnout — Road Crossing — Signaled Siding — Controlled Siding

— Main — Industrial — Storage — Passenger Station — Yard — Foreign

Nodes Identify

— Signal— Switch— Diamond— Change in grade— Change in curvature— Change in speed


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Network characteristics are required to build models

Detailed network information:

Grade crossingsSpeedsCurvatureElevationsConfiguration

Sources of data:GISEngineering databaseTrack chartsTimetablesEngineering drawingsYard mapsGoogle/Bing Maps


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0.930Curvature

-0.052Grade

55/50Speed

Model is built using actual track profile

Track Charts

RTC

139.230 141.460139.370

2.11Curvature

0.313Grade

50/40Speed

142.450 143.610 143.976

0.75Curvature

0.385Grade

50/40Speed

0.30Curvature

0.407Grade

50/40Speed

Main 1142.800

2.08Curvature

-0.024Grade

50/40Speed

2.60Curvature

0.000Grade

50/40Speed

2.75Curvature

0.000Grade

55/50Speed

1.87Curvature

-0.230Grade

55/50Speed


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Signals and switch locations taken from GIS

Signal BA 141.4 Orleans Rd CP 139


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Actual train data is used to create trains in the model

Train consist characteristicsTonnageLengthLoaded/empty carsNumber and type of locomotives

Train route characteristicsOriginDestinationCrew change locationsTurnaround locationsPick-up and set-out locations


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Data is supplemented and validated using other data sources and experienced personnel

Other data sources:OS reportingDispatching replaysString-lines

Human sources:PlannersDivision managersTrainmastersYardmasters


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RTC Architecture

Network

Track LayoutSignals


GradesCurvature

Network

Track LayoutSignals


GradesCurvature

Trains



ConsistPriorities

Trains



ConsistPriorities

Meet/Pass Logic


Calculator


Calculator


OutputsOutputs


37

Internal TPC mimics actual train handling


38

RTC Architecture

Network

Track LayoutSignals


GradesCurvature

Network

Track LayoutSignals


GradesCurvature

Trains



ConsistPriorities

Trains



ConsistPriorities

Meet/Pass Logic


Calculator


Calculator


OutputsOutputs


39

RTC Architecture

Network

Track LayoutSignals


GradesCurvature

Network

Track LayoutSignals


GradesCurvature

Trains



ConsistPriorities

Trains



ConsistPriorities

Meet/Pass Logic


Calculator


Calculator


OutputsOutputs


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Meet/Pass Logic

Priority-based dispatchingTrain type specific

Coal min: 3500 initial:5000 max:6500Intermodal min: 4500 initial:6000 max:7500

Increases and decreases based on early or late time versus prorated schedule

Peaks when hours of service approaches for crews

Q10001 V10001

50006000

Q10001

V10001


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Meet/Pass Logic continued

When trains become tangled RTC will rewind, make changes and attempt to resolve

The model will fail if it is unable to resolve complicated conflicts

“The difference between RTC and the human is that RTC solves the dispatching problem on a much larger scale:

greater distances and longer periods of time”


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Model can randomize train start times

Goal is for 28 days7 days warm up 14 days statistical period7 day cool down

Multiple random seeds

Randomize train departure times

Set by train typeIntermodal trains [-0:15,+0:30]

Merchandise [-0:30,+1:00]

Coal [-2:00,+4:00]


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RTC Architecture

Network

Track LayoutSignals


GradesCurvature

Network

Track LayoutSignals


GradesCurvature

Trains



ConsistPriorities

Trains



ConsistPriorities

Meet/Pass Logic


Calculator


Calculator


OutputsOutputs


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RTC has multiple outputs useful for data analysis and validation

Detailed train performance data

Delay reports

Time-distance charts

Animation


45

Time

Dis

tanc

e

6 Hour Disruption

Shockw

ave

Recovery

Normal

Time Distance Diagram


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Animation


47

Questions?


48

Copyright Restrictions and Disclaimer

Presentation AuthorC. Tyler Dick, P.E.Senior Railway Research EngineerRail Transportation and Engineering CenterCivil & Environmental Engineering DepartmentUniversity of Illinois at Urbana-Champaign1241 Newmark Civil Engineering LabUrbana, IL 61801(217) 300-2166<[email protected]>

It is the author’s intention that the information contained in this file be used for non-commercial, educational purposes with as few restrictions as possible. However, there are some necessary constraints on its use as described below.

Copyright Restrictions and Disclaimer:The materials used in this file have come from a variety of sources and have been assembled here for personal use by the author for educational purposes. The copyright for some of the images and graphics used in this presentation may be held by others. Users may not change or delete any author attribution, copyright notice, trademark or other legend. Users of this material may not further reproduce this material without permission from the copyright owner. It is the responsibility of the user to obtain such permissions as necessary. You may not, without prior consent from the copyright owner, modify, copy, publish, display, transmit, adapt or in any way exploit the content of this file. Additional restrictions may apply to specific images or graphics as indicated herein.

The contents of this file are provided on an "as is" basis and without warranties of any kind, either express or implied. The author makes no warranties or representations, including any warranties of title, noninfringement of copyright or other rights, nor does the author make any warranties or representation regarding the correctness, accuracy or reliability of the content or other material in the file.


1 c. tyler dick, p.e. university of illinois at urbana-champaign copyright c. tyler dick, 2012 –...

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