Project – Part 1 Slow Street Horizontal Alignment TRAN CV314

Project – Part 1
Slow Street Horizontal Alignment
TRAN CV314

Due Date – Friday November 11See mycanvas th at 11:59pm on mycanvas
Late Submissions – 10% per day for up to 3 days. See mycanvas
Submission –Design Brief (pdf), Excel, and Civil 3D files submitted via mycanvas.
Completion – This assignment must be completed with a partner (maximum 2 per group). Register your group on mycanvas. Do not submit the same work as another group.

Report Submission Checklist Grade √
Horizontal Alignment Design X/100
Excel Model (Formatting) X/15
Design Drawing (Formatting) X/15
Design Brief X/20
Total X/150

Estimated time to complete this assignment: 12 hours
Description

In this assignment you will design a horizontal alignment connecting two existing roads. Using the concepts covered in the lectures, you will design a connection between the roads, model the design in excel, and create design drawings of the proposed road in Civil 3D.

The site you will design is Slow Street, just outside of West City. West City has purchased several plots of land and has contracted you to realign Slow Street to improve traffic flow along the street. Information on the existing conditions and design requirements for Slow Street are included in the next section.

Design Requirements

– Design Speed: Slow Street currently has a design speed of 50 km/hr. As part of the mobility improvement, the engineers at West City have asked you to increase the speed limit to 80 km/hr.
– Proposed Right of Way width: 30.0m ROW
– Proposed design chainage interval: 10.0m major, 2.5m minor.
Existing Conditions

How to complete this project:

1. Download the Civil 3D baseplan from mycanvas, titled Slow Street Baseplan.dwg.
2. Rename the file in the following format: New Street Name_Group#.dwg. Come up with a new street name and include your group number in the file name.
3. Clean up the base plan per the requirements listed in Appendix A.
4. Determine your groups specific point of intersection stations from the list posted on mycanvas. Choose one of the group members stationing to use. Note on your design sheets, drawings, and design brief your given stations.
***Note: You are given points of intersection. As the designer you are able to modify these points to improve your design. Remember to justify your decisions in your design brief.
5. Based on your stationing, you can now choose a superelevation, friction factor, and minimum radius for your design. As the designer, you choose the:
o Curve Radius o Design Speed o Superelevation (e) o Friction factor
6. Next you will design the horizontal alignment of your road. Using Civil 3D, model the horizontal alignment of your road. Use the horizontal alignment function to design your road, by following these steps: https://www.youtube.com/watch?v=TGojk7HraE0 ***Note: Design the road to maximize speed (80 km/h is the goal, but you can choose any design speed). You can choose a different design speed, radius, and/or superelevation for the two curves. All decisions and changes must be described and justified in your design brief.
7. The horizontal alignment tool in Civil 3D will help you design the road center line. Using basic CAD tools such as polylines, draw the extents of your proposed road right-of-way. Confirm that the new ROW doesn’t encroach on any private property. If your alignment does not fit within the existing property lines, you will need to modify the design parameters until it fits. Detail your decisions and decision process in your design brief.
8. Create a new drawing sheet and set up your design per the Civil 3D design requirements listed in Appendix A.
9. Using excel, model each of your curves. The modelling and formatting requirements are listed in Appendix A.
10. Now you have completed the first iteration of your horizontal alignment. Next you need to design the superelevation of your proposed road.
11. Using excel, model the superelevation of your proposed road. Confirm if there is any overlap in the tangent runout’s, and adjust your design accordingly. Based on your superelevation model, you may need to make further revisions to your design. Detail your decisions and decision process in your design brief.
***Note: this step may take several iterations. The results of this step are worth a lot of the points awarded on the rubric.
12. Submit your design brief, excel model and Civil 3D file on mycanvas.
Appendix A

Excel Modelling and Formatting Requirements

To complete this assignment, you will model your design in excel. You will create an excel spreadsheet able to complete the required calculations. Beyond using excel to assist with your design, you will format the file so that someone who has never seen it before can easily understand the process. Format your excel sheet per the requirements below:

– Include an introduction sheet that describes the purpose of file, and what file can do. This is the excel equivalent to a report cover page and introduction or a drawings titleblock. All excel files should have an introduction sheet.
– Complete all modelling in one file (on multiple sheets). – Each sheet must be set up to print on 8.5×11 or 11×17.
– Each step needs to be clearly articulated with the formulas used shown (graded on my ability to follow your work).

Civil 3D Baseplan Cleanup Requirements

In engineering, when we receive a new baseplan from another consultant (typically the surveyor, planners, and/or architects), the technologists job is to clean up the file so that it looks presentable on the civil design drawings. To do this, we highlight important lines to make them dark, and fade less important lines, using the grey scale. In CAD, grey ranges from colour 250 to 255. 250 is almost black, and 255 is almost white, with grey in between. By following the instructions below, clean up the baseplan file.

Set lines to colours listed below:
Major Contours (including labels) – 251
Minor Contours (including labels) – 254
Property Lines – Cyan
Ex Roads – White
Ex Road CL – 253
Dimension Text – White
Property Labels and Text – 253
Notes and North Arrow – White

Civil 3D Design Requirements

As part of this submission, you will set up your design on sheets, ready to be printed for submission. You will set two sheets, the first showing the existing condition, and the second showing the proposed plan. The requirements for each drawing are listed below.

Existing Conditions and Removals Plan
– Plan drawing showing the existing site conditions and areas to be removed.
– Arch D size sheet
– Titleblock complete with scale, scale bar, north arrow, etc.
– Notes (as required)
– Format text and features to appropriate size. – Highlight the properties owned by West City.
– Cloud or hatch, and label the existing features to be removed.

Proposed Design Plan

– Plan drawing showing the proposed design.
– Arch D size sheet
– Titleblock complete with scale, scale bar, north arrow, etc.
– Notes (as required)
– Format text and features to appropriate size.
– Show the proposed right of way (on its own layer).
– Highlight the property owned by West City available for resale.
– Draw and label the following aspects of your horizontal alignment design:
o Front and back tangents o Points of intersections o Beginning, middle, and end of curves
o Superelevation points of interest (beginning of tangent runout, beginning of superelevation runoff, full superelevation, beginning of tangent runout, and end of tangent runout). This may be completed on a third drawing if sufficient space is not available.
– Include a note on your drawing detailing all design input information.