- Lab Assignment 14
Design Project Part 5
Define the Superelevation and Complete the Design of the Grade-Separated, Two-Quadrant, Partial Cloverleaf A Interchange using GEOPAK

Copyright © 2009 by Dr. Thomas W. Rioux
Students taking this course may print one copy of this document for their personal class use.


Objective:   Define the Superelevation and Complete the Design of the Grade-Separated, Two-Quadrant, Partial Cloverleaf A Interchange using GEOPAK.

Activity:   Start Windows Explorer and copy the file "\\job13.gpk" to "\\job14.gpk" and "\\lab_13.dgn" to "\\lab_14.dgn";  Start MicroStation and open the 2D design file "\\lab_14.dgn"; Start GEOPAK, set the standard GEOPAK user preferences for this class, and set the standard COGO preferences for this class; Open the GEOPAK Project named lab_14, set Job Number to 14, set Subject to "Design Project Part 5", and set Coordinate Geometry for Temporary Visualization; Define the vertical profile for the Entrance Ramp; Define the vertical profile for the Exit Ramp; Define the superelevation for the Entrance Ramp; Define the superelevation for the Exit Ramp; Clear Visualized Elements (Temporary) and Exit COGO; Change the level of all lines and arcs used for construction to Level 2 and turn Level 2 viewing off for all views; Attach the TxDOT Plan Sheet file "\\design_project_plan_sheet.dgn" to "\\lab_14.dgn" as a reference file; Create a Saved View and attach "\\lab_14.dgn" as a reference file to itself using the saved view; Plot the drawing; Exit MicroStation; E-mail "\\lab_14.dgn" to at by the lab assignment due date and time; and Complete Design Project Design Questions section 5; and .

Background:   This laboratory assignment comprises Design Project Part 5 - Define the Superelevation and Complete the design of the Grade-Separated, Two-Quadrant, Partial Cloverleaf A Interchange using GEOPAK (see Design Project).   You will use the features of MicroStation and GEOPAK to complete the design.

PART 5 OF THE DESIGN PROJECT IS TO BE COMPLETED BY LAB ON .   THIS LAB ASSIGNMENT MAY TAKE MORE TIME TO COMPLETE THAN THE PREVIOUS LAB ASSIGNMENTS.   NO QUESTIONS ON PART 5 WILL BE ANSWERED DURING LAB NEXT WEEK.

THE FINAL DETERMINATION OF THE ADEQUACY OF YOUR DESIGN WILL BE MADE BY WHEN THE LAB ASSIGNMENT IS GRADED NO MATTER WHAT IS SAID IN THE LAB BY ANY OF THE INSTRUCTORS OR THE TEACHING ASSISTANTS.

Design Project Part 1 (Lab Assignment 10) through Design Project Part 4 (Lab Assignment 13) are due at the beginning of lab on the following week, the grade will be based upon completion not correctness, and will be returned during the lab.  Design Project Part 5 (Lab Assignment 14) and Design Project Part 6 (Lab Assignment 15) are due , the grade will be based upon correctness, and will be returned before the final exam.

To receive full credit for the Design Project, the Design Project must be submitted by the due date noted for each Lab Assignment.  A Late Penalty of (including weekends) will be assessed for all Lab Assignments submitted after their due date.  All Lab Assignments must be turned in by at to receive any credit.  No lab assignment will be accepted for grading after this time.

A.   Start Windows Explorer and copy the file "\\job13.gpk" to "\\job14.gpk" and "\\lab_13.dgn" to "\\lab_14.dgn".

B.   Start MicroStation and open the 2D design file "\\lab_14.dgn".

C.   Start GEOPAK, set the standard GEOPAK user preferences for this class, and set the standard COGO preferences for this class.

D.   Open the GEOPAK Project named lab_14, set Job Number to 14, set Subject to "Design Project Part 5", and set Coordinate Geometry for Temporary Visualization.

E.    Define the vertical profile for the Entrance Ramp starting at the beginning station for the Entrance Ramp (Point 31), ending at the ending station for the Entrance Ramp (Point 35), using a Reference Elevation of 200.0 and horizontal from beginning to end.   Save Profile As setting Profile to PROFENRMP and setting File to j14o<your_2_initials>enrp.inp.    If there was an error saving the vertical profile, in the Coordinate Geometry Job:14 Operator: <your_2_initials> dialog box in the COGO Key-in field, enter make input file j14o<your_2_initials>enrp.inp pro PROFENRMP and press the Enter key.

F.   Define the vertical profile for the Exit Ramp starting at the beginning station for the Exit Ramp (Point 41), ending at the ending station for the Exit Ramp (Point 45), using a Reference Elevation of 200.0, and horizontal from beginning to end.   Save Profile As setting Profile to PROFEXRMP and setting File to j14o<your_2_initials>exrp.inp.    If there was an error saving the vertical profile, in the Coordinate Geometry Job:14 Operator: <your_2_initials> dialog box in the COGO Key-in field, enter make input file j14o<your_2_initials>exrp.inp pro PROFEXRMP and press the Enter key.

G.   Define the superelevation for the Entrance Ramp.

G.1.   In the Automated Superelevation dialog box, choose File -> Preferences and ensure that the preferences are set according to Lab Assignment 07 Step J.

G.2.   In the Automated Superelevation dialog box, set Job to 14, set Design Speed to the design speed for the ramp, set Preference File to txdot_uc, set e Selection to 8% e max, set Chain to ENTRMP, set Begin to the beginning station for the ramp, set End to the ending station for the ramp (NOTE: this may have to be set to 0.01 less than the POT value to avoid rounding issues in GEOPAK), set Facility to Undivided, set L Selection to all cases, and set Create Input File to super14entrmp.inp.  

G.3.   In the Automated Superelevation dialog box, press the Left tab and set Profile to PROFENRMP, set Tie to Offset, set Offset to 0.0000, set % Slope to 2.0000, set 1st Offset to -14.0000, set 2nd Offset to 0.0000, set Dependent to checked; press the Right tab and set Profile to PROFENRMP, set Tie to Offset, set Offset to 0.0000, select the lane entry (if any), delete the lane entry by pressing the delete push button ; and finally press the Generate Superelevation Transitions push button.

G.4.   In the Text Editor: super14entrmp.inp dialog box, edit the filler line station/slope entries to assure the following and Save:

beginning POT   +2.0 % normal crown
beginning Spiral ENTR1B +2.0 % normal crown
ending Spiral ENTR1B +8.0 % full superelevation
beginning Spiral ENTR1A +8.0 % full superelevation
ending Spiral ENTR1A +2.0 % normal crown
2/3 length before beginning Curve ENTR2 +2.0 % normal crown
1/3 length after beginning Curve ENTR2 +3.7 % superelevation
1/3 length before ending Curve ENTR2 +3.7 % superelevation
2/3 length after ending Curve ENTR2 +2.0 % normal crown
ending POT   +2.0 % normal crown

G.5.   In the Superelevation Autoshape Builder dialog box, set Autoshape Input File to \\super14entrmp.inp, deselect Display Only, deselect Override Input File Level Symbology, press the Draw Superelevation Shapes push button, and close the Superelevation Autoshape Builder dialog box.   Inspect the superelevation shapes with View Attributes of Fill set to Off.

H.   Define the superelevation for the Exit Ramp.

H.1.   In the Automated Superelevation dialog box, set Job to 14, set Design Speed to the design speed for the ramp, set Preference File to txdot_uc, set e Selection to 8% e max, set Chain to EXTRMP, set Begin to the beginning station for the ramp, set End to the ending station for the ramp (NOTE: this may have to be set to 0.01 less than the POT value to avoid rounding issues in GEOPAK), set Facility to Undivided, set L Selection to all cases, and set Create Input File to super14extrmp.inp.  

H.2.   In the Automated Superelevation dialog box, press the Left tab and set Profile to PROFEXRMP, set Tie to Offset, set Offset to 0.0000, set % Slope to 2.0000, set 1st Offset to 0.0000, set 2nd Offset to 14.0000, set Dependent to checked; press the Right tab and set Profile to PROFEXRMP, set Tie to Offset, set Offset to 0.0000, select the lane entry (if any), delete the lane entry by pressing the delete push button ; and finally press the Generate Superelevation Transitions push button.

H.3.   In the Text Editor: super14extrmp.inp dialog box, edit the filler line station/slope entries to assure the following and Save:

beginning POT   +2.0 % normal crown
beginning Spiral EXTR1B +2.0 % normal crown
ending Spiral EXTR1B  -8.0 % full superelevation
beginning Spiral EXTR1A  -8.0 % full superelevation
ending Spiral EXTR1A +2.0 % normal crown (may not be listed)
beginning Spiral EXTR2B +2.0 % normal crown (may not be listed)
ending Spiral EXTR2B +8.0 % full superelevation
beginning Spiral EXTR2A +8.0 % full superelevation
ending Spiral EXTR2A +2.0 % normal crown
2/3 length before beginning Curve EXTR3 +2.0 % normal crown
1/3 length after beginning Curve EXTR3 +3.7 % superelevation
length before ending Curve EXTR3 +3.7 % superelevation
ending POT   +2.0 % normal crown

H.4.   In the Superelevation Autoshape Builder dialog box, set Autoshape Input File to \\super14extrmp.inp, deselect Display Only, deselect Override Input File Level Symbology, press the Draw Superelevation Shapes push button, and close the Superelevation Autoshape Builder dialog box.   Inspect the superelevation shapes with View Attributes of Fill set to Off.

I.   Clear Visualized Elements (Temporary) and Exit COGO.

J.   Change the level of all lines and arcs used for construction to Level 2 and turn Level 2 viewing off for all views.

K.   Attach the TxDOT Plan Sheet file "\\design_project_plan_sheet.dgn" to "\\lab_14.dgn" as a reference file using Attachment Mode of Interactive, with Orientation set to Coincident, Scale (Master:Ref) of 1800:1, and True scale checked.   Fit All and use Tools -> Move to move the reference file so that all elements of the design are within the plan sheet.

L.   Create a Saved View and attach "\\lab_14.dgn" as a reference file to itself using the saved view.

L.1.   Set Level Display for Level 11, Level 12, Level 14, and Level 17 to on and Level 13 to off.

L.2.   Fit View 1, Window Area in View 1, and adjust the size of View 1 such that the Station 36+00 through 40+00 tick marks and the WB-50 truck turn templates are visible.

L.3.   Choose Utilities -> Saved Views.

L.4.   In the Saved Views dialog box, press the Save View icon , set View to 1, set Name to TRUCKS, set Description to Truck Turn Templates, press the OK push button, and close the Saved Views dialog box.

L.5.   Set Level Display for Level 11, Level 12, Level 14, and Level 17 to off and Fit View 1.

L.6.   Attach the file "\\lab_14.dgn" to "\\lab_14.dgn" as a reference file with Attach Method of Interactive, with Orientation set to Saved Views TRUCKS, Scale (Master:Ref) of 5:1, and True scale checked.   Fit All and use Tools -> Move to move the reference file so that all elements of the design are within the plan sheet.

M.   Plot the drawing.

M.1.   Set View Attributes Data Fields and Fill to off.

M.2.   Place the title "", "Design Project", your names, and the assignment due date of in the box labeled Texas Department of Transportation in the lower right box of the plan sheet using a text height, text width, and text spacing of 50 feet with font of 3 (font=ENGINEERING), justification of Center Center, level of Level 1 (level=Level 1), color of white (color=0), style of solid (style=0), and weight of 0 (weight=0).

M.3.   Place a fence from the outside plan sheet rectangle and plot the drawing using and options for Fence, True color, Paper Size of ANSI E, landscape, a scale of 150 ft / in, and Settings -> Print Attributes -> Fence boundary off and Print border on.   Do not fold the plot.

Define the Superelevation and Complete the Design of the Grade-Separated, Two-Quadrant, Partial Cloverleaf A Interchange using GEOPAK

N.   Exit MicroStation.

O.   E-mail "\\lab_14.dgn" to at by the lab assignment due date and time.

P.   Complete Design Project Design Questions section 5.

Q.   .

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Lab Assignment 14 is due .

Latest Update: 18-May-2009 02:40 PM