CADD Engineering Standards - Ohio Department of Transportation

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January 18, 2013 205 Line Weights 205.1 General Line weights are used to differentiate graphical elements in the design file and on the plotted sheet. Line Weight width ranges from weight 0 (narrowest) to weight 31 (widest) and designate the thickness of the line used to draw or plot a graphic element. Standard line weights for plan graphics are specified in the CADD Information Table, Appendix A. 205.2 Plotting See Section 400 Plotting for information on line weight plotting thickness values. 206 Cell Libraries 206.1 General A cell is a complex element composed of a group of primary elements or other complex elements. Cells are stored in a cell library. For plan consistency, it is advantageous to create cells for items that will be repeatedly placed in a design file. Several ODOT standard cell libraries are available as detailed in Section 206.3 Cell Libraries. 206.2 Cell Types Most of the cells created in ODOT’s cell libraries have been created as graphic cells. The symbology (color, line style, line weight, and level) of a graphic cell is determined when it is created. When graphic cells are placed, they are level-independent, i.e., they do not rotate with the view and they keep the settings that were active when they were created. A few cells have been created as point cells where appropriate. A point cell takes on the active symbology set in the file at the time it is placed and are view independent, i.e., they rotate with the view. Several “Pattern and Terminator Type" symbols that were created as graphic type cells in the following cell libraries are now taking advantage of a new feature in MicroStation when placing them in the design file: ODOT_Geotech.cel ODOT_Geotech_1996.cel ODOT_Symbols.cel Graphic Cells can be produced on the “Default” Level using specific symbology, such as, color, line style, and line weight. A benefit to graphic cells being created on the “Default” level is the new symbols act similar to point cells when placed in the design file they inherit the Active Level, but not the symbology (color, line style, line weight). It is important to note, that the graphic cell does not inherit the Active Symbology (i.e. color, weight, line style) like a “Point Cell”, unless the graphic cell was drawn on the “Default” level with the attributes set to “ByLevel”. 30 ODOT CADD Engineering Standards
206.3 Cell Libraries January 18, 2013 The following Cell Libraries are available to facilitate the drawing of commonly used symbols and sheet borders as described below: Cell Library Description ODOT_Bridge.cel Commonly used cells for Bridge plans. ODOT_Drainage.cel Cells for standard drainage structures. ODOT_Geotech.cel Cells used for Geotechnical Information. ODOT_Geotech_1996.cel Cells used for the Specifications for Subsurface Investigation. ODOT_RW.cel Commonly used cells for Right-of-Way plans. ODOT_Sheets.cel Cells for standard plan sheet borders. ODOT_Symbols.cel Cells representing standard plan symbols. A set of cell libraries has been developed to include standard signs from the Office of Roadway Engineering, Sign Designs and Markings Manual. These sign cells are easily placed using a custom application, ODOT_Signs.mvba. A complete list of the sign cell libraries and instructions for running the signs application can be found on the ODOT CADD Standards website. The Cell libraries can be accessed from the ODOT CADD Standards website via the MicroStation Downloads web page. 206.4 Cell Placement The ODOT cell libraries have been updated to utilize the new enhancement for Annotation Cells. Every cell can be placed as an Annotation Cell when the new feature “Can be placed as an annotation cell” is toggled on in the Model Properties dialog box. ODOT CADD Engineering Standards 31
Page 1: Ohio Department of Transportation C
Page 5 and 6: Table of Contents January 18, 2013
Page 7 and 8: January 18, 2013 307 GEOPAK Project
Page 9 and 10: 100 GENERAL 101 Introduction Januar
Page 11 and 12: 200 CADD STANDARDS 201 Installation
Page 13 and 14: Alternate Configuration Files There
Page 15 and 16: 202.3 ByLevel Considerations Januar
Page 17 and 18: Bridge General Gen - SV Bridge Pres
Page 19 and 20: 202.5 Priority and Transparency Jan
Page 21 and 22: January 18, 2013 You do not need to
Page 23 and 24: Transparency January 18, 2013 Trans
Page 25 and 26: January 18, 2013 The Transparency v
Page 27 and 28: 204.2 Types of Line Styles ODOT CAD
Page 29 and 30: January 18, 2013 The following deta
Page 31 and 32: GEOPAK Placement (Existing and Prop
Page 33 and 34: Survey Processing (Existing Basemap
Page 35 and 36: January 18, 2013 When attaching Ref
Page 37: Bridge Design Files: January 18, 20
Page 41 and 42: ODOT CADD Standards contain two (2)
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Page 49 and 50: January 18, 2013 Changing the Annot
Page 51 and 52: 207.2 Text Size January 18, 2013 St
Page 53 and 54: January 18, 2013 Selecting a Text S
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Page 57 and 58: 208 Seed Files 208.1 General Januar
Page 59 and 60: 211 Working Units 211.1 General Jan
Page 61 and 62: 214 GEOPAK Criteria Files 214.1 Gen
Page 63 and 64: 300 FILE MANAGEMENT 301 General 301
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Page 79 and 80: January 18, 2013 Final plan sheets
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SIGNAL SHEETS Notes - CN General Su
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306.2 GEOPAK COGO Element Names Jan
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COGO Right of Way Elements Chains R
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(1) Project Name: For this example,
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400 PLOTTING 401 General 401.1 Gene
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401.2.3 Shading The following are o
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502.2 Saved View January 18, 2013 W
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Figure 503-2 504 CADD File Requirem
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January 18, 2013 A sample ASCII rep
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504.3 Vertical Alignment ASCII Repo
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January 18, 2013 Each horizontal al
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January 18, 2013 504.6 Monumentatio
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January 18, 2013 Left Offset/Right
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January 18, 2013 The XS Reports dia
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January 18, 2013 Select the Apply b
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Appendix A - CADD Information Table
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Appendix E - Electronic Submission
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APPENDIX F - Level Scale Factors Re
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