In the previous module, 'Analysing Results', we introduced you to the tools that allow you to understand an option or corridor. Over the course of the project, you will likely want to iterate and refine your options.
We suggest the following steps as best practices to improve a route option and obtain the updated metrics.
Identify and make a copy of the line/route you want to iterate on – there are two ways of doing this.
Copying a line: If you want to alter an existing line which has already been imported or drawn, find the line under the lines tab in the Data Window, and generate an exact duplicate by selecting ‘copy’ in that line’s three-dot menu. Name and add a description to the new line indicating what changes you intend to make. You can edit the original line, but we don’t advise this for live projects.
Extracting from an option: If you want to edit an option generated by Optioneer, make the option visible and select it in the Analyze Window, and produce a line by selecting ‘Extract Centreline’ in the three-dot menu. Create a name and add a description and click 'save'. The line will now be visible in the list of lines in the Data Window. NB there will not be an original line for this one as the option was generated.
Edit the new line:
Select your new line from the list in the Data Window and from the three-dot- menu click 'Edit'.
In the pop-up, toggle the accuracy of the centreline. If you want to preserve all details, keep it high. If you would like to reduce the number of waypoints, reduce it.
Click on the red dots to move them. If you want to create new waypoints on the line, select the yellow dot in the centre of the red dots.
When you have refined the line, update the description and save it.
Leave a Comment - It is good practice to leave a comment to explain the purpose of the update. Remember to link the project features or results you refer to in the comment. Click HERE for a reminder on the different functions available when adding comments.
Run the Analysis - Go to the Setup Window and select your updated line. Select your configuration, name your result and add a description. Click HERE to go through the evaluation steps.
When the analysis is complete you can use the tools in the Option Comparison Mode to understand how your updates have affected the impact of the centreline.