Roads Tutorial 6 Exercise 1: Setting Up Corridor Optimization (Horizontal Optimization)

In this first exercise, you will do some set up work prior to running an optimization on a road corridor. Corridor optimization is also called horizontal optimization, to distinguish it from vertical or profile optimization (which you can try out in Exercise 3.

1. Switch to the proposal RoadsTutorial6.

   This proposal includes avoidance areas for the road corridor.

2. Go to the bookmark Corridor.
3. Open the Roads Analysis toolbar and select Corridor Optimization.
4. For Job Description enter Foothills 1.
5. Under Structure Styles, click Road.
6. In the Style dialog box, select Divided Highway and click OK.

   You could also select styles for bridges and tunnels, but we will skip this step.

7. Click Advanced Settings and then scroll down to see the options.
8. Click Cost Zones and then click Draw Avoidance Zones.
9. Make sure that Avoidance-areas_Export-COVERAGES is selected.

   This is a file that has been imported into the model. The two green polygons represent parkland that the corridor needs to avoid (at extra cost).

10. Note that you have the option to sketch other areas that the corridor should avoid.
11. Close the Cost Zones panel.
12. Click Construction and Earthwork Cost and then click the link with the same name.

    The settings are contained in a separate file, which may take a moment to download.

13. View the cost settings and then click OK to close the dialog box.
14. Close Advanced Settings.