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1 C. Tyler Dick, P.E. University of Illinois at Urbana-Champaign Copyright C. Tyler Dick, 2012 – All Rights Reserved.

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Presentation on theme: "1 C. Tyler Dick, P.E. University of Illinois at Urbana-Champaign Copyright C. Tyler Dick, 2012 – All Rights Reserved."— Presentation transcript:

1 1 C. Tyler Dick, P.E. University of Illinois at Urbana-Champaign Copyright C. Tyler Dick, 2012 – All Rights Reserved

2 2 Railway geometry is designed with a specialized application running within a CAD program InRail or Geopak most common Both run inside MicroStation Civil3D within AutoCAD is also used Copyright C. Tyler Dick, 2012 – All Rights Reserved

3 3 MicroStation CAD platform Generates, manipulates and prints graphics Displays aerial images, backgrounds Layer drawings into design plans InRail or Geopak Design Software Intelligent “brains & math” behind graphics Ties track alignment and profile geometry to graphics Stores elevation and terrain model data for existing ground and proposed subgrade surfaces Copyright C. Tyler Dick, 2012 – All Rights Reserved

4 4 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 Copyright C. Tyler Dick, 2012 – All Rights Reserved

5 5 Bentley InRail is a specialized version of the InRoads highway design software 95% of the commands and functions are the same Same workflow InRail offers additional capability for turnouts, superlevation, rail design criteria Copyright C. Tyler Dick, 2012 – All Rights Reserved

6 6 6 Turnout commands Rail design options Copyright C. Tyler Dick, 2012 – All Rights Reserved

7 7 Aerial and ground survey Geotechnical field investigation Track design Horizontal and vertical geometry Subgrade, earthwork and basic drainage Culverts and special ditches Roadway crossings and signage Bridge and facilities design support InRail Copyright C. Tyler Dick, 2012 – All Rights Reserved

8 8 Survey Contours and topo information provided in AutoCAD or MicroStation format Aerial 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 Copyright C. Tyler Dick, 2012 – All Rights Reserved

9 9

10 10 Preliminary Route Detailed Topo Horizontal Alignment Vertical Alignment (Profile) DTM Preliminary Subgrade Earthwork Quantities Typical Section Preliminary Limits of Cut and Fill Preliminary ROW Final Geometry (H&V) In ROW? Balanced? Grades OK? Copyright C. Tyler Dick, 2012 – All Rights Reserved

11 11 Can set design criteria to auto- generate curves, spirals and super elevation based on track design speed and maximum super elevation Copyright C. Tyler Dick, 2012 – All Rights Reserved

12 12 Design vertical curves by “R” value for track design Can also automate with design criteria Copyright C. Tyler Dick, 2012 – All Rights Reserved

13 13 DTM & Typical Section TemplateFinal Geometry Corridor & Preliminary Earthwork Model Set Special Ditch Profiles Detailed Earthwork Model Final Limits of Cut and Fill Final ROW Final Cross Sections In ROW? Hydraulic check Final Quantities Copyright C. Tyler Dick, 2012 – All Rights Reserved

14 14 Define subgrade and ditch width, side slopes Copyright C. Tyler Dick, 2012 – All Rights Reserved

15 15 Assign templates to horizontal and vertical geometry Preview cross sections Plan Profile X-section Copyright C. Tyler Dick, 2012 – All Rights Reserved

16 16 Templates create 3-D proposed subgrade earthwork surface Cut with Ditches Fill Copyright C. Tyler Dick, 2012 – All Rights Reserved

17 17 Locomotive cab perspective view of proposed and existing earthwork surfaces Cut with Ditches Fill Proposed Centerline Copyright C. Tyler Dick, 2012 – All Rights Reserved

18 18 Detailed earthwork model and DTM combined into proposed terrain Drainage area analysis determines flows and culvert locations Culverts sized using hydraulic analysis programs outside CAD Copyright C. Tyler Dick, 2012 – All Rights Reserved

19 19 Roadway crossings Layout of panels, protection devices Horizontal and vertical reconstruction Culverts to carry ditches under roadways Locate signage, derails, bumping posts Coordinate with bridge and/or facilities designers Railway geometry and earthwork sections Quantities & Cost Estimates Copyright C. Tyler Dick, 2012 – All Rights Reserved

20 20 Project Layout Geometry and Quantity Summaries Typical Sections Plan and Profile Track Culvert Roadway Cross Sections Standard Details Sign Layouts Grade Crossing Layouts Drainage Area Map Bridge/Facility Drawings Standard CAD tools used to create sheets from rail design program output Copyright C. Tyler Dick, 2012 – All Rights Reserved

21 21 Copyright C. Tyler Dick, 2012 – All Rights Reserved

22 22 MicroStation v8i and InRail (Bentley Rail Track v8i) are available on a student/faculty academic license from Bentley Individual and institution licenses available Training & learning Academic program Educators Students Copyright C. Tyler Dick, 2012 – All Rights Reserved

23 23 Presentation Author Tyler Dick Professional Associate, Engineer-Rail HDR Engineering 600 West 6th Street, Suite 100 | Fort Worth, TX | 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. Copyright C. Tyler Dick, 2012 – All Rights Reserved

24 24 Line-of-Road Simulation Tool C. Tyler Dick University of Illinois Copyright Samuel L. Sogin, 2012 – All Rights Reserved

25 25 Network capacity analysis model “RTC is a powerful software package that dispatches trains using the same elements as a human dispatcher.” Copyright Samuel L. Sogin, 2012 – All Rights Reserved

26 26 What if? analyses Adding Infrastructure Sidings Signals Double track Operational changes Rerouting Higher volumes Shorter dwells Future Case “What-if” Schedules Mix Impact Growth Market Shift High Speed Rail Train Size Copyright Samuel L. Sogin, 2012 – All Rights Reserved

27 27 Copyright Samuel L. Sogin, 2012 – All Rights Reserved

28 28 Copyright Samuel L. Sogin, 2012 – All Rights Reserved

29 29 Network Track Layout Signals Switches Speed Limits Grades Curvature Network Track Layout Signals Switches Speed Limits Grades Curvature Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Meet/Pass Logic Internal Train Performance Calculator Priorities Outputs Copyright Samuel L. Sogin, 2012 – All Rights Reserved

30 30 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 Copyright Samuel L. Sogin, 2012 – All Rights Reserved

31 31 Detailed network information: Grade crossings Speeds Curvature Elevations Configuration Sources of data: GIS Engineering database Track charts Timetables Engineering drawings Yard maps Google/Bing Maps Copyright Samuel L. Sogin, 2012 – All Rights Reserved

32 Curvature Grade 55/50Speed Track Charts RTC Curvature Grade 50/40Speed Curvature Grade 50/40Speed 0.30 Curvature Grade 50/40Speed Main Curvature Grade 50/40Speed 2.60 Curvature Grade 50/40Speed 2.75 Curvature Grade 55/50Speed 1.87 Curvature Grade 55/50Speed Copyright Samuel L. Sogin, 2012 – All Rights Reserved

33 33 Signal BA 141.4Orleans Rd CP 139 Copyright Samuel L. Sogin, 2012 – All Rights Reserved

34 34 Train consist characteristics Tonnage Length Loaded/empty cars Number and type of locomotives Train route characteristics Origin Destination Crew change locations Turnaround locations Pick-up and set-out locations Copyright Samuel L. Sogin, 2012 – All Rights Reserved

35 35 Other data sources: OS reporting Dispatching replays String-lines Human sources: Planners Division managers Trainmasters Yardmasters Copyright Samuel L. Sogin, 2012 – All Rights Reserved

36 36 Network Track Layout Signals Switches Speed Limits Grades Curvature Network Track Layout Signals Switches Speed Limits Grades Curvature Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Meet/Pass Logic Internal Train Performance Calculator Priorities Outputs Copyright Samuel L. Sogin, 2012 – All Rights Reserved

37 37 Copyright Samuel L. Sogin, 2012 – All Rights Reserved

38 38 Network Track Layout Signals Switches Speed Limits Grades Curvature Network Track Layout Signals Switches Speed Limits Grades Curvature Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Meet/Pass Logic Internal Train Performance Calculator Priorities Outputs Copyright Samuel L. Sogin, 2012 – All Rights Reserved

39 39 Network Track Layout Signals Switches Speed Limits Grades Curvature Network Track Layout Signals Switches Speed Limits Grades Curvature Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Meet/Pass Logic Internal Train Performance Calculator Priorities Outputs Copyright Samuel L. Sogin, 2012 – All Rights Reserved

40 40 Priority-based dispatching Train type specific Coal min: 3500 initial:5000 max:6500 Intermodal 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 V Q10001 V10001 Copyright Samuel L. Sogin, 2012 – All Rights Reserved

41 41 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” Copyright Samuel L. Sogin, 2012 – All Rights Reserved

42 42 Goal is for 28 days 7 days warm up 14 days statistical period 7 day cool down Multiple random seeds Randomize train departure times Set by train type Intermodal trains [-0:15,+0:30] Merchandise [-0:30,+1:00] Coal [-2:00,+4:00] Copyright Samuel L. Sogin, 2012 – All Rights Reserved

43 43 Network Track Layout Signals Switches Speed Limits Grades Curvature Network Track Layout Signals Switches Speed Limits Grades Curvature Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Trains Origin and Destinations Dwells Crew Changes Locomotives Consist Priorities Meet/Pass Logic Internal Train Performance Calculator Priorities Outputs Copyright Samuel L. Sogin, 2012 – All Rights Reserved

44 44 Detailed train performance data Delay reports Time-distance charts Animation Copyright Samuel L. Sogin, 2012 – All Rights Reserved

45 45 Time Distance 6 Hour Disruption Shockwave Recovery Normal Copyright Samuel L. Sogin, 2012 – All Rights Reserved

46 46 Copyright Samuel L. Sogin, 2012 – All Rights Reserved

47 47 Copyright Samuel L. Sogin, 2012 – All Rights Reserved

48 48 Presentation Author C. Tyler Dick, P.E. Senior Railway Research Engineer Rail Transportation and Engineering Center Civil & Environmental Engineering Department University of Illinois at Urbana-Champaign 1241 Newmark Civil Engineering Lab Urbana, IL (217) 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. Copyright Samuel L. Sogin, 2012 – All Rights Reserved


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