NOTES Module 11 Subdivision Cross Sections and Quantities Quantity calculation and cross section generation are required elements of subdivision design projects. After the design is completed and approved by the governing agencies, the next step is for the engineer to tender (or bid) the project for construction. The tendering process involves soliciting construction bids from several construction companies. The construction companies, or contractors, submit their bids based on their calculated cost for completing the work. These costs are mostly based on material quantities. Design cross sections display the engineering details of the road that are required for construction. Design cross sections are generated at intervals along the alignment and show the configuration of the proposed road at various locations. In this module, you learn how to generate cross sections and calculate quantities for roads in a subdivision. Objectives After completing this module, you will be able to: Create quantity takeoff criteria. Create and edit sample lines. Create section views showing the road design. Modify sample line group properties. Create a code set style and label cross sections. Calculate subdivision quantities, generate quantity reports, and create a quantity table.
AutoCAD Civil 3D 2009 Education Curriculum NOTES Notes Data for this module resides in the \AutoCAD Civil 3D 2009 Education Curriculum\Module 11 Subdivision Cross Sections and Quantities\ folder. Student Exercises The following exercises are provided in step-by-step format. Open the AutoCAD Civil 3D program prior to beginning the lesson by double-clicking the Civil 3D icon on your desktop. Those working in the Imperial system should use the drawing files beginning with the letter I, while those working in the metric system should use the drawing files beginning with the letter M. You are provided with a drawing for each exercise in the lesson. The exercises in this module are as follows: 1. Create Quantity Takeoff Criteria 2. Create and Edit Sample Lines 3. Create Section Views 4. Modify Sample Line Group Properties 5. Create a Code Set Style and Label Cross Sections 6. Calculate Quantities, Generate a Report, and Create a Table 11-2
Module 11 Subdivision Cross Sections and Quantities NOTES Subdivision Cross Sections and Quantities In this module, you learn how to generate section views and calculate quantities for roads in a subdivision. The first step in the process is to generate cross section sample lines. Sample lines are created perpendicular to an alignment and at specific intervals. These are required for both quantity calculation and the generation of section views. The source data required for creating section views and calculating quantities includes the existing ground surface, corridor cross section, and corridor surface cross section. The corridor cross section is the sampled cross section of the corridor model at each sample line location. The existing ground and corridor surface cross section are the sampled surfaces at each sample line location. Corridor cross sections and existing ground cross sections are displayed in section views. Subdivision road volume calculations typically account for only the pavement structure materials. These include asphalt (surface course and binder course) and granular (base and subbase) materials. To calculate pavement structure volumes, corridor cross section data is attached to the cross section sample lines when the sample lines are created. Earthworks quantities are typically not calculated as part of subdivision road quantities. These are most often determined as part of an overall site grading quantity. You begin this module by creating quantity takeoff criteria to calculate 11-3
AutoCAD Civil 3D 2009 Education Curriculum NOTES pavement structure quantities. The quantity takeoff criteria is general criteria and is stored in a drawing template (DWT). It specifies the types of quantities to be calculated and how the quantities will be calculated. When the corridor model is created, the material names in the corridor do not always match the materials names in quantity takeoff criteria. To calculate the quantities, you assign the corridor material names to the material names in the quantity takeoff criteria. You then create and edit the width of the cross section sample lines. These are organized into a sample line group. The sample line group is a collection of sample lines for an alignment. Once the sample lines have been edited, the next step is to create the section views in the drawing. The section views are the grids that contain the corridor cross section data and the existing ground cross section data. 11-4
Module 11 Subdivision Cross Sections and Quantities NOTES You then learn how to modify the properties of the sample line group. This is useful when a new surface is generated that is required for either display in the section views for quantity calculation. The next step is to label the corridor cross section data. You apply offset and elevation labels to the pavement edges and slope labels to the pavement surfaces. This module finishes with a quantity calculation, the generation of a quantity report, and the creation of volume tables in the drawing. 11-5
AutoCAD Civil 3D 2009 Education Curriculum NOTES Key Terms Quantity Takeoff Criteria Material List Sample lines Section View Group Plot Style Surface Section Corridor Section ETW Section Point Section Link Section Shape Code Set Style Quantity takeoff criteria specifies which quantities are calculated, the types of quantities, and how the quantities are calculated. Quantity takeoff criteria is applied to a sample line group to create a material list. The material list is created when quantity takeoff criteria is applied to a sample line group. You use the material list to generate quantity takeoff reports and tables. Sample lines are created for a horizontal alignment and are required for the creation of section views and for calculating quantities. Sample lines are created in plan view at a specific interval and are usually perpendicular to the alignment. You attach source data to sample lines when they are created. The section view is a gridded plot that shows cross section data. Section data can consist of surface data, corridor data, or even pipe network data. The group plot style determines the orientation and position of the section views in the drawing. A surface section object is displayed in the section views and shows the cross section of a sampled Civil 3D surface. Surface section data is attached to sample lines when they are created. Surface section data can be used to calculate earth cut and fill quantities for a road. A corridor section is displayed in the section views and shows the cross section of a sampled corridor model. Corridor section data is attached to sample lines when they are created. Corridor section data can be used to calculate corridor material volumes. ETW stands for edge of traveled way. This is the Civil 3D code for a point on the edge of pavement. A section point is a singular location on a cross section. Examples of section points include edge of traveled way (ETW) and inside edge of sidewalk (Sidewalk_In). Section points are used to create the longitudinal corridor feature lines. Section points can be annotated with offset and elevation labels in the section view. A section link connects section points. Section links can be used to create corridor surfaces. They can also be annotated with grades in section views. A section shape connects the section points. Section shapes can be used to calculate material volume from corridor cross section data. Section shapes can also be annotated with end area data. A code set style automatically assigns marker styles to section points, link styles to section links, and shape styles to section shapes. A code set style can also automatically assign labels to section points, links, and shapes to corridor 11-6
Module 11 Subdivision Cross Sections and Quantities NOTES sections in the section view. 11-7
AutoCAD Civil 3D 2009 Education Curriculum NOTES EXERCISE 1: CREATE QUANTITY TAKEOFF CRITERIA Civil 3D calculates quantities using quantity takeoff criteria. Quantity takeoff criteria associate a user-defined material name with an actual material. Corridor quantities can be of type cut, fill, cut and refill, earthworks, or structures. In this exercise, you create quantity takeoff criteria that is used to calculate the quantities for the pavement structure for the Cedar Cove corridor. The completed quantity takeoff criteria appears as shown. To help you to better understand corridor cross sections, refer to the illustration as shown. Points are singular locations on the corridor cross sections and originate from the subassemblies. You can use points to create offset-elevation labels and to create Civil 3D points for construction staking. Links connect the points and are used to create corridor surfaces. You can also label links with grades and slopes. Shapes connect the links and are used to calculate corridor section volumes. You can also label shape end areas. 11-8
Module 11 Subdivision Cross Sections and Quantities NOTES Civil 3D assigns default names to points, links, and shapes. For example, in Civil 3D the edge of pavement is referred to as edge of traveled way, or ETW. The four layers of a pavement structure are Pave1 (surface course), Pave2 (binder course), Base (upper granular layer), and Subbase (lower granular layer). For this exercise, open \Module 11 Subdivision Cross Sections and Quantities\I_SubdivisionCrossSectionsandQuantities-EX1.dwg (M_SubdivisionCrossSectionsandQuantities-EX1.dwg). 1. In Toolspace, click the Settings tab. 2. Expand the Quantity Takeoff and Quantity Takeoff Criteria trees. Note the three quantity takeoff criterion. 3. Right-click Quantity Takeoff Criteria. Click New. 4. In the Quantity Takeoff Criteria dialog box, click the Information tab. 5. For Name, enter Subdivision Pavement Structure. 6. Click the Material List tab. You now define materials for the four layers of the pavement structure. The subassemblies used to create the corridor model consist of shapes. You use the shapes to calculate the corridor pavement structure quantities. 7. Click Add New Material. A new material is added and a default name assigned. 8. Click Material (1). Rename Surface Course. 11-9
AutoCAD Civil 3D 2009 Education Curriculum NOTES 9. In the same row, click in the Quantity Type column. 10. Change the value to Structures. Structures are a quantity type that refers to corridor shapes, which in turn originate from the subassemblies. 11. In the Define Material section of the dialog box, change Data Type to Corridor Shape. Select the Pave1 corridor shape. 12. Click to add the data to the material item. 13. Repeat the same steps and add the following materials: Material Name Quantity Type Corridor Shape Binder Course Structures Pave2 Base Structures Base Subbase Structures SubBase The completed material list appears as shown. 11-10
Module 11 Subdivision Cross Sections and Quantities NOTES 14. Click OK. 15. Close the drawing and do not save the changes. 11-11
AutoCAD Civil 3D 2009 Education Curriculum NOTES EXERCISE 2: CREATE AND EDIT SAMPLE LINES Cross section sample lines are created for a horizontal alignment and are required to create section views and to calculate quantities. Sample lines are created in plan view at a specific interval and are usually perpendicular to the alignment. When you create sample lines, you specify source data to attach. Source data can be corridor section data, cross section data, or even pipe network data. Existing ground surface data and corridor section data are as shown. The data types you attach to the sample lines determine the types of quantities that are calculated and the types of section data you see in the section views. Sample lines are organized in Sample Line Groups, which appears as a tree under the Alignments tree in Prospector. In this exercise, you create sample lines for the Cedar Cove alignment. Cedar Cove is the east cul-de-sac. 11-12
Module 11 Subdivision Cross Sections and Quantities NOTES For this exercise, open \Module 11 Subdivision Cross Sections and Quantities\I_SubdivisionCrossSectionsandQuantities-EX2.dwg (M_SubdivisionCrossSectionsandQuantities-EX2.dwg). 1. Click Sections menu > Create Sample Lines. 2. In the drawing area, click the Cedar Cove alignment. This is the centerline alignment for the east cul-de-sac. 3. In the Create Sample Lines dialog box, review the settings. At the bottom of the dialog box, you specify which section data to sample and attach to the sample lines in the Sample Line Group. The first item in the list is Existing Ground. This is the existing ground surface. It is required to calculate earth cut and fill quantities and is displayed in the section views. The second item in the list is Cedar Cove. This is the Cedar Cove corridor model and is required for pavement structure quantity calculations. It is usually viewed in the section views. The third item in the list is Cedar Cove Cedar Cove Top. This is the Cedar Cove top surface and is not required for quantities, and does not need to be viewed in the section views. 4. For Cedar Cove Cedar Cove Top, clear the check box in the Sample column. 11-13
AutoCAD Civil 3D 2009 Education Curriculum NOTES 5. Click OK. The Sample Line Tools toolbar is displayed. 6. Click the Sample Line Creation Methods drop-down list. Select By Range of Stations. The Create Sample Lines By Station Range dialog box is displayed. 7. Under Station Range, for Alignment Start, change the value to False. 8. Click in Start Station. Click. Select the start station by snapping to the northwest corner of the Cedar Cove corridor. 9. For Start Station, enter 139.79 (1012.14 m) if you did not correctly select the Start Station. 11-14
Module 11 Subdivision Cross Sections and Quantities NOTES 10. For To Alignment End, change the value to False. 11. For End Station, enter 468.5 (1112.4 m). The sample lines are placed from station 1+39.79 (1+012.14 m) to 4+68.5 (1+112.4 m). 12. Scroll down to view the sampling increments. The sampling increments are the intervals at which sample lines are created. You can set different sampling increments for tangents, curves, and spirals. The Cedar Cove alignment is a straight tangent segment. 13. For Increment Along Tangents, enter 10 (5 m). 14. Click OK. 15. Close the Sample Line Tools toolbar. Civil 3D creates sample lines in the drawing. The next step is to modify the colors for the sample lines and the sample line labels. First, you modify layer colors with the Layer Properties Manager. 16. Enter LA on the command line. Press ENTER. 17. Click C-ROAD-SAMP. 18. Hold the CTRL key, and click C-ROAD-SAMP-TEXT. 11-15
AutoCAD Civil 3D 2009 Education Curriculum NOTES 19. Select the color box for either of the selected layers. 20. Enter 5 (color blue). Click OK. 21. Close the Layer Properties Manager. The colors of the sample lines and sample line labels update accordingly. Notice that the text for the sample line labels is too large. Also notice that the sample line lengths are too long. You now modify the sample line label style. 22. In Toolspace, click the Settings tab. 23. Click the plus sign (+) to expand the Sample Line tree. 24. Expand the Label Styles tree. 25. Right-click Section Name. Click Edit. 26. In the Label Style Composer dialog box, click the Layout tab. 27. For General - Anchor Point, change the value to End. 28. For Text - Text Height, change the value to.05 (2 m). 29. For Text - Attachment, change the value to Middle Left. 30. For Text - X Offset, change the value to.05 (.75 m). 31. For Text - Y Offset, change the value to 0 (0 m). 11-16
Module 11 Subdivision Cross Sections and Quantities NOTES 32. Click OK. The display of the sample line changes due to the modifications to the sample line label style. Notice that the widths of the sample lines are too wide, extending too far beyond the corridor width. 33. Click Sections menu > Edit Sample Lines. 34. Click the Sample Line Tools toolbar. 35. Select the Cedar Cove alignment. 36. Click the down arrow to the right of SL Collection 1. Click Edit Swath Widths for Group. 11-17
AutoCAD Civil 3D 2009 Education Curriculum NOTES 37. For Left Swath Width and Right Swath Width, enter 35 (11 m). 38. Click OK. 39. Close the Sample Line Tools toolbar. You may need to regen the drawing to update the labels. Civil 3D updates the swath width of the sample lines in the drawing. Now review the Sample Line Group. 40. Click the Prospector tab. 41. Expand Alignments, Cedar Cove, Sample Line Groups, and SL Collection 1. 42. Click Sample Lines. The Sample Lines are displayed in the Item View area of Prospector. 43. Expand Sections The Existing Ground surface and Cedar Cove corridor section data are displayed. 44. Close the drawing and do not save the changes. 11-18
Module 11 Subdivision Cross Sections and Quantities NOTES EXERCISE 3: CREATE SECTION VIEWS Section views are the visual representation of the cross section data. In Civil 3D, the Section View object is the grid that contains the section data. Section data can be surface sections or corridor sections. In this exercise, you view the corridor cross sections and then plot the section views to the drawing. At the end of this exercise, the drawing displays as shown. For this exercise, open \Module 11 Subdivision Cross Sections and Quantities\ I_SubdivisionCrossSectionsandQuantities-EX3.dwg (M_SubdivisionCrossSectionsandQuantities-EX3.dwg). Begin by viewing the corridor sections. 1. Click Corridor menu > View/Edit Corridor Section. 2. At the Select a Corridor prompt, in the drawing area, click the Cedar Cove corridor. Civil 3D displays corridor section data and existing ground surface section data in the drawing area and the View/Edit Corridor Section Tools toolbar. 3. On the toolbar, Command Settings, click the down arrow. Select Edit/View Options. The View/Edit Corridor Section Options dialog box opens. 4. Under View/Edit Options, for Default View Scale, enter 2 (2 m). 11-19
AutoCAD Civil 3D 2009 Education Curriculum NOTES 5. Click OK. Civil 3D adjusts the view scale of the corridor section. 6. Click the and icons to view the sections for different stations. 7. Click the station list down arrow and select any station. 8. Close the View/Edit Corridor Section Tools toolbar. 9. On the command line, enter ZE. Press ENTER to zoom to the extents of the drawing. Now create the section views. 10. Click Sections menu > Create Multiple Section Views. The Create Multiple Section Views wizard opens. 11. In the General Window: In the Station Range section of the wizard, select User Specified. Click to select the start station. In the drawing area, select the start station by snapping to the northwest corner of the Cedar Cove corridor. 11-20
Module 11 Subdivision Cross Sections and Quantities NOTES In the dialog box, for End station, enter 468.5 (1112.4 m). The station ranges are displayed as follows: 12. Click Next. Review the settings on the Offset Range page. 13. Click Next. Review the settings on the Elevation Range page. 14. Click Next. Review the settings on the Section Display Options page. 15. Click Next. Review the settings on the Data Bands page. 16. On the Data Bands page, click Create Section Views. 17. Click a point in the drawing above the Orchard Road profile view. Civil 3D creates the Section Views in the drawing area. 11-21
AutoCAD Civil 3D 2009 Education Curriculum NOTES Next, you adjust the positioning of the section views. 18. In Toolspace, click the Settings tab. 19. Expand the Section View and Group Plot Styles trees. The group plot styles control the location and position of the section views when they are plotted. 20. Right-click Basic. Click Edit. 21. In the Group Plot Style dialog box, click the Array tab. 22. For Maximum In a Row, change the value to 5. 11-22
Module 11 Subdivision Cross Sections and Quantities NOTES 23. Change the column and row spacing to 1 (10 mm) 24. Click OK. The location of the section views in the drawing area is modified. Now you modify the Section View style. 25. On the Settings tab, expand the Section View and Section View Styles trees. 26. Right-click Road Section. Click Edit. 27. In the Section View Style dialog box, click the Title Annotation tab. 28. For Graph view title, Text height, enter.15 (2.5 m). 29. Click the Grid tab. 30. Clear the Clip Vertical Grid check box. 11-23
AutoCAD Civil 3D 2009 Education Curriculum NOTES 31. Clear the Clip Horizontal Grid check box. 32. Ensure all values for Grid Padding (major grids) are set as shown. 33. Click the other tabs and review the settings. 34. Click OK. Civil 3D updates the display of the Section Views in the drawing area. 11-24
Module 11 Subdivision Cross Sections and Quantities NOTES 35. Close the drawing and do not save the changes. 11-25
AutoCAD Civil 3D 2009 Education Curriculum NOTES EXERCISE 4: MODIFY SAMPLE LINE GROUP PROPERTIES Civil 3D organizes cross section data into sample line groups. The sample line group shows the created sample lines, the section data attached to the sample lines, and the section views created for each of the sample lines. When you modify the properties of the sample line group, you can change the labels assigned to the sample lines, change the source data attached to the sample lines, and change how the section views display section data. In this exercise, you learn how to modify the properties of the sample line group for the Cedar Cove alignment. For this exercise, open \Module 11 Subdivision Cross Sections and Quantities\ I_SubdivisionCrossSectionsandQuantities-EX4.dwg (M_SubdivisionCrossSectionsandQuantities-EX4.dwg). 1. In Toolspace, click the Prospector tab. 2. Expand the Alignments, Cedar Cove, Sample Line Groups, and SL Collection -1 trees. 3. Expand the Sections and Section View Group trees 11-26
Module 11 Subdivision Cross Sections and Quantities NOTES 4. Click Sample Lines. Review the information in the item view window at the bottom of Prospector. 5. Repeat the review step for Sections and Section View Groups. Notice the section data for SL Collection 1 sample line group contains Existing Ground surface section data and Cedar Cove corridor section data. 6. In the item view area shown, right-click 1+40.00 (1+015.00 m). Click Zoom To. 7. Use the middle mouse wheel and zoom out. 11-27
AutoCAD Civil 3D 2009 Education Curriculum NOTES 8. In Prospector, right-click SL Collection 1. Click Properties. 9. Click the Sample Lines tab. Civil 3D displays the sample lines in the Sample Line Group SL Collection 1. 10. Click Edit Group Labels. 11. Click to remove the sample line labels. 12. For Sample Line Label Style, select Section Marks #-#. 13. Click Add. 14. Click Apply. Civil 3D changes the labels assigned to the sample lines. 15. Click again to remove the sample line labels. 16. For Sample Line Label Style, select Section Name. 17. Click Add. 18. Click Apply. Civil 3D restores the labels to the section name. 19. Click OK to return to Sample Line Group Properties. 11-28
Module 11 Subdivision Cross Sections and Quantities NOTES 20. Click OK to close Sample Line Group Properties. Now look at the section data. 21. In Prospector, click Section View Group 1 22. Right-click Section View 1+40.00(1) (10+15.00 1 m). Click Zoom To. Civil 3D navigates to the section view for station 1+40.00 (10+15 m). Notice that the section view shows the Existing Ground section and the Cedar Cove corridor section. 23. In Prospector, right-click SL Collection 1. Click Properties. 24. Click the Sections tab. You now change the source data that is attached to the Sample lines. 25. Click Sample More Sources. 26. On the left side, under Available Sources, click Cedar Cove Cedar Cove Top. 27. Click Add. 28. On the right side of the dialog box, click Cedar Cove. 11-29
AutoCAD Civil 3D 2009 Education Curriculum NOTES 29. Click Remove. 30. Click OK twice to close both dialog boxes. Civil 3D changes the data attached to the sample lines and updates the section views automatically. 31. In Prospector, right-click SL Collection 1. Click Properties. 32. Click the Sections tab. 33. Click Sample More Sources. 34. Add the Cedar Cove corridor section. 35. Remove the Cedar Cove Cedar Cove Top surface. 36. Click OK. 37. Click Apply. 38. Click the Section Views tab. 39. Expand the Section View Group 1 tree. Civil 3D displays all the section views in the sample line collection. 40. Click OK. 41. Close the drawing and do not save the changes. 11-30
Module 11 Subdivision Cross Sections and Quantities NOTES EXERCISE 5: CREATE A CODE SET STYLE AND LABEL CROSS SECTIONS Corridor sections are displayed in section views with points, links, and shapes. Points represent cross section locations such as edge of traveled way (ETW), curb flow lines (Flowline_Gutter), and inside edge of sidewalk (Sidewalk_In). Links are lines that connect the points and represent the physical layers of the cross section. Shapes are polygons that connect the links and represent the material end areas. Refer to the illustration as shown. A code set style is assigned to cross sections and automatically assigns marker styles to points, link styles to links, and shape styles to shapes in cross sections. The code set style can also assign labels to points, links, and shapes in a cross section. A cross section point label can be used to label offsets and elevations for critical cross section points. A cross section link label can be used to label grades or slopes. A shape label can be used to label an end area. In this exercise, you create a code set style that includes offset, elevation, and grade labels. You then apply this code set style to the cross sections. At the end of this exercise, the cross sections are labeled as shown. For this exercise, open \Module 11 Subdivision Cross Sections and Quantities\I_SubdivisionCrossSectionsandQuantities-EX5.dwg (M_SubdivisionCrossSectionsandQuantities-EX5.dwg). 11-31
AutoCAD Civil 3D 2009 Education Curriculum NOTES 1. In Toolspace, click the Settings tab. 2. Expand the General, Multipurpose Styles, and Code Set Styles trees. 3. Right-click Code Set Styles. Click New. 4. Click the Information tab. 5. For Name, enter Subdivision Roads. 6. Click Apply. 7. Click the Codes tab. 8. Click Import codes. 9. In the drawing area, graphically select the Cedar Cove corridor model from the plan view. Press ENTER. Civil 3D populates the Code list with all the point names, link names, and shape names present in the Cedar Cove corridor. 10. Close the Link, Point, and Shape trees. 11. Expand the Link tree. 11-32
Module 11 Subdivision Cross Sections and Quantities NOTES Civil 3D displays all of the links in the Cedar Cove corridor. The Pave link is the link on the top pavement layer on the assembly. You now assign a label style to the Pave link that labels the grade. 12. In the Label Style column, click in the Pave row. 13. Select Flat Grades. 14. Click OK. Civil 3D assigns the Flat Grades link label style to the Pave links in the Subdivision Roads code set style. You see the labels when the Subdivision Roads code set style is assigned to the corridor section data. Now assign a label style to the edge of traveled way (ETW) points to label offset and elevation. 15. Close the Link tree. 16. Expand the Point tree. 17. In the Label Style column, click the ETW row. 11-33
AutoCAD Civil 3D 2009 Education Curriculum NOTES 18. Select Offset Elevation. Click OK. Civil 3D assigns the Offset Elevation point label style to the ETW points in the Subdivision Roads code set style. You see the labels when the Subdivision Roads code set style is assigned to the corridor section data. 19. Click OK. Now assign the Subdivision Roads code set style to the corridor section data. 20. In Toolspace, click the Prospector tab. 21. Expand the Alignments, Cedar Cove, and Sample Line Groups trees. 22. Right-click SL Collection 1. Click Properties. 23. Click the Sections tab. 24. In the Style column, for Cedar Cove, change the code set style to Subdivision Roads. 11-34
Module 11 Subdivision Cross Sections and Quantities NOTES 25. Click OK twice to close both dialog boxes. 26. Zoom to any section view. Civil 3D has labeled the corridor section in the section view with grades, offsets, and elevations. The labels need to be modified. First, modify the link grade label style. 27. In Toolspace, click the Settings tab. 28. Expand the General, Label Styles, and Link trees. 29. Double-click Flat Grades. 30. In the Label Style Composer dialog box, click the Layout tab. 31. For Text Height, enter.02 (1 mm). 32. Click OK. Civil 3D updates the link grade labels on the corridor sections to reflect the reduced label size. 11-35
AutoCAD Civil 3D 2009 Education Curriculum NOTES Now modify the Offset Elevation label style. 33. In Toolspace, Settings tab, expand the General, Label Styles, and Marker trees. 34. Right-click Offset Elevation. Click Edit. 35. In the Label Style Composer dialog box, click the Layout tab. 36. Change Component Name to Point Code. 37. Ensure the Text Height is.01 (1 mm). 38. Under the Border tree, for Background Mask, change to False. Turning Background Mask off does not hide object display below the label. 11-36
Module 11 Subdivision Cross Sections and Quantities NOTES 39. Change Component Name to Offset Elevation. 40. Ensure that the Text Height is.01 (1 m). 41. Click OK. Civil 3D updates the point Offset Elevation labels to reflect the exclusion of the background mask on the Point Code label. 42. Close the drawing and do not save the changes. 11-37
AutoCAD Civil 3D 2009 Education Curriculum NOTES EXERCISE 6: CALCULATE QUANTITIES, GENERATE A REPORT AND CREATE A TABLE Civil 3D calculates corridor quantities using the end area method. In this exercise, you calculate pavement structure quantities from the corridor shapes. Earthwork quantities for subdivision design projects are usually calculated as part of a site grading quantity. To calculate material quantities, the corridor section, data must be attached to the sample lines. In this exercise, you calculate quantities, generate a quantity report in HTML / XML format, and create a quantity table in the drawing. For this exercise, open \Module 11 Subdivision Cross Sections and Quantities\I_SubdivisionCrossSectionsandQuantities-EX6.dwg (M_SubdivisionCrossSectionsandQuantities-EX6.dwg). 1. Click Sections menu > Compute Materials. 2. In the Select a Sample Line Group dialog box, click OK. The Compute Materials dialog box appears. 3. In the Compute Materials dialog box, change the Quantity Takeoff Criteria to Subdivision Pavement Structure. 4. Click Map objects With Same Name. 11-38
Module 11 Subdivision Cross Sections and Quantities NOTES The quantity takeoff criteria originates in a drawing template and is used on many projects. The material names in the quantity takeoff criteria may not match the material names in the corridor. Civil 3D assigns the Object Names from the corridor to the names in the quantity takeoff criteria. Sometimes the automatic name mapping is not complete. 5. Click Object Name in the Subbase row. 6. Select Cedar Cove Subbase. 7. Click OK. Civil 3D has computed the volumes. You will create a report shortly. 8. Zoom into any section view. Notice that Civil 3D has represented the different volume shapes with a shape style. The shape style assigns a color to the corridor section shape. This is not required for corridor shape volumes. 9. From Toolspace, click the Prospector tab. 10. Expand the Alignments, Cedar Cove, and Sample Line Groups trees. 11-39
AutoCAD Civil 3D 2009 Education Curriculum NOTES 11. Right-click SL Collection 1. Click Properties. 12. Click the Section Views tab. 13. Click in the Section Display column. 14. Turn off Surface Course, Binder Course, Base, and Subbase. 15. Click OK twice to close both dialog boxes. Civil 3D removes the display of the material shapes from the section views. Notice that the corridor shapes are now clearly delineated. Now you create a volume report. 16. Click Sections menu > Generate Volume Report. 17. Click to select the style sheet. 18. Select Select Material.xsl. 11-40
Module 11 Subdivision Cross Sections and Quantities NOTES 19. Click Open. 20. Click OK to accept the default settings on the Report Quantities dialog box. Civil 3D launches a web browser to show the report. You may be prompted to run scripts. 21. If you are prompted to run scripts, click Yes. Civil 3D displays a material report in Internet Explorer. 22. Close your browser window. Now create volume tables in the drawing. 23. Enter ZE. Press ENTER to zoom to the extents of the drawing. 24. Click Sections menu > Add Tables > Material Volume. 25. For Select a Material, select Subbase. 26. Click OK. 27. Select a location in the drawing to create the table. 11-41
AutoCAD Civil 3D 2009 Education Curriculum NOTES Civil 3D inserts a material volume table to the drawing. 11-42
Module 11 Subdivision Cross Sections and Quantities NOTES Questions Answers 1. What is quantity takeoff criteria used for? Do you need to create new quantity takeoff criteria for every project? 2. Do you need sample lines to calculate quantities? Explain. 3. Explain the difference between a section view and cross section data. 4. What is the best way to annotate corridor data in a section view? 5. How do you organize the layout of the section views in a drawing? 1. Quantity takeoff criteria specifies which quantities are calculated, the types of quantities, and how the quantities are calculated. Quantity takeoff criteria is applied to a sample line group to create a material list. Quantity takeoff criteria is a general definition, is stored in a drawing template file, and can be used on different projects. 2. Sample lines are required for the calculation of quantities. When quantities are computed, a material is created and applied to the sample line group. 3. A section view is the plot that shows the cross section data. Cross section data can be surface data, corridor data, or pipe data. 4. To annotate corridor data in a section view, you create a code set style. The code set style automatically assigns labels to corridor section points, links, and shapes. 5. A group plot style controls the position and orientation of section views in the drawing. 11-43
AutoCAD Civil 3D 2009 Education Curriculum NOTES Module Summary In this module, you learned how to create sample lines, generate section views, calculate corridor material volumes, generate volume reports, and create corridor volume tables. The module began with the creation of quantity takeoff criteria. This is used to identify the materials, the types of quantities the material represents, and how the quantities are calculated. Next, you created and edited sample lines. Surface and corridor data are attached to sample lines, which are organized into a sample line group. The sample line group is associated with a control alignment. The next step was to plot the section views. The section view style was used to control the display of the section views. You then modified the properties of the sample line group to attach different source data to the sample lines. Section view data was automatically updated based on changes made to the sample line group properties. You then created a code set style to automatically label offsets, elevations, and grades for key corridor locations in the section views. The module finished with the calculation of material quantities, the generation of a quantity report, and the creation of a quantity table in the drawing. 11-44