Inserting Skew Cross Section
Civil Designer has the ability to insert skew cross sections into a road project. By default all cross sections are extracted at 90 degrees to the road centre line, but it is quite easy to specify that a specific cross section must be at a skew angle.
Make sure you are in Roads Mode.
Tools Menu › Index › Edit Chainage Record
In the above dialog the user can specify the skew angle at which cross sections should be extracted for this chainage record. Enter a positive value for clock-wise rotation and a negative value for anti-clockwise rotation.
Clicking on the Previous chainage and Next chainage buttons allows the user to progress through the chainage records, once all the changes have been made, click on the save button and then close. Going through the chainage records will only list the chainages in the roads file, if additional chainages are required in the road, then these need to be added to the road.
In this example, there is a skew section at chainage 30.
Extract cross section etc as per normal. With the road plan show, the skew cross sections can also be labelled.
Civil Designer also has the ability to plot only the skew cross sections.
To plot only the skew cross sections
In the Roads Mode › Plot › Generate
Select the cross section sheet file.
Click next to continue.
On the next screen that appears, select to only plot skew cross sections.
Click [Finish] to generate a plot of the skew cross sections.
The next step would normally be to extract cross sections, but additional chainages need to be added.
Tools › Index › Insert Chainage
This dialog allows the user to insert the chainages are required, click cancel once all the chainages have been added.
If the chainages that need to be inserted start at 10 and there must be a chainage at every 2 meters, then the Batch Chainage Insertion function can be used.
Once the chainages have been inserted, then the road is re-coordinated (note that the chainages from index has now been selected)
If the Output window is visible, the inserted chainages will be listed.
The remainder of the road is designed as per normal. The Road Expert can also be used to assist the Engineer/Technician. The Road Expert can be accessed via the Alignment Menu. The Road Expert will open listing the steps that are still required in the road design.
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