Hello folks and welcome to the reading of another TBC Tip of the Week. Thank you to the very knowledgeable @Alan Sharp for this tip, he sure knows TBC!
When modelling and creating a corridor in TBC, it is common for many templates to be used. Would you believe me if I told you most corridors can be modelled with just one? There is a trick to this! (Hint, it’s using the ‘undefined’ (?) character in template instructions)
Here I have created a corridor using an imported alignment.
![Alignment](https://higherlogicdownload.s3.amazonaws.com/TRIMBLE/JiveInlineImages/139720.png)
I will now create a template using Corridor > Corridor > Insert Template with Begin station: 0+00.00.
![Insert Corridor Template](https://higherlogicdownload.s3.amazonaws.com/TRIMBLE/JiveInlineImages/139721.png)
In the Edit Corridor Template command pane, Under Offset/slope from: select 1 > HAL (HAL is my alignment name). This selects the start point for the instruction to be referenced from. Under Offset: select Table.
![Edit Corridor Template - Create Instruction](https://higherlogicdownload.s3.amazonaws.com/TRIMBLE/JiveInlineImages/139722.png)
Select the three ellipses to open the table.
![](https://higherlogicdownload.s3.amazonaws.com/TRIMBLE/JiveInlineImages/139723.png)
I filled the table out as below. For the pavement of my corridor, I want a gradual change from 0’ from the alignment to 12ft from station 1+80 to 2+20. I want a 12ft width until station 3+00 where I have an intersection and want to have a gap in this template. I want the template to resume at station 3+80.
![Instruction Table](https://higherlogicdownload.s3.amazonaws.com/TRIMBLE/JiveInlineImages/139724.png)
I set the Slope % to -2.00% and named the instruction EOPR (Edge of Pavement Right). Click Add.
![](https://higherlogicdownload.s3.amazonaws.com/TRIMBLE/JiveInlineImages/139725.png)
The instruction is shown on the plan (and 3D View). Notice the use of the ‘undefined’ (?) character has created a gap in the instruction in the template. This allows the input of repeating sections of a corridor quickly and easily.
![End Result of Corridor Template](https://higherlogicdownload.s3.amazonaws.com/TRIMBLE/JiveInlineImages/139726.png)
TBC - From Field to Finish With Confidence.