Since there has been the release of variable median conditions in the FDOT ITL file there has been an increase of gaps in the corridor data and visible in the 3D Surface Model. This is typically caused by the corridor template points not automatically connecting when a component change occurs. When this happens there is a gap in the data the length of the interval set in the Template Drop dialog (i.e. if the template drop interval is set to 10, then the gap will be 10ft in length).
There has been a couple of suggestions to correct this problem. The primary workaround was to create Keystations in Roadway Designer to shorten the gap. This method makes the visible gap in the 3D Surface Model very short where it is not easily seen, however, there was still a gap and missing data.
The following steps should correct gaps in restore a complete 3D Surface Model and prevent missing data:
1. Once you have your corridor completed, navigate to the Create Surface icon to open the Create Surface dialog.
2. Make sure you have a 3D Model or DGN active in your current Microstation Session.
3. Name the surface and setup the dialog as if you are creating the final surface. (In the example the surface is Gaptest.)
4. Click Apply and let the software create the surface.
Note: You do not haveto close Roadway Designer.
5. In Roadway Designer, navigate to the Station prior to the gap in your 3D Model. (In the example the station is 407+70.00.)
6. Hover over the point that needs to transition to fill in the gap. (In the example this point is the V-Ditch point RT_DITCH_CNTR_IN2.)
7. In Roadway Designer, navigate to the Station next station which typically is the station following to the gap in your 3D Model. (In the example the station is 407+80.00.)
8. Navigate to the Point Controls icon to open the Point Controls dialog.
9. Click the Target button next to the Point drop down list to select the transition point. (In the example this point is LT_RTL_DITCH_BOTL_IN (Point Name Break Down: Left_Restricted Turn Lane_Ditch_BottomLeft_Inside).)
10. Set the Control Type as Feature.
11. Set the Surface as the new surface just created in steps 3 and 4. (In the example this surface is Gaptest.)
12. Set the Feature as the point name in step 6.
13. Click the Add button in the top right corner of the Point Controls dialog.
14. While still in the Point Controls dialog, click the Target button next to the Point drop down list to select the transition point. (In the example this point is LT_RTL_DITCH_BOTR_IN (Point Name Break Down: Right_Restricted Turn Lane_Ditch_BottomRight_Inside).)
15. Set the Control Type as Feature.
16. Set the Surface as the new surface just created in steps 3 and 4. (In the example this surface is Gaptest.)
17. Set the Feature as the point name in step 6.
18. Click the Add button in the top right corner of the Point Controls dialog.
19. Close Point Controls dialog.
20. Make sure you have a 3D Model or DGN active in your current Microstation Session.
21. Navigate to the Create Surface icon to open the Create Surface dialog.
22. Name the surface and setup the dialog as if you are creating the final surface or select the name from the Name drop down list created in steps 3 and 4. (In the example the surface is Gaptest.)
23. Click Apply and let the software create the surface.
24. In the 3D Model or DGN file open in your current Microstation Session, navigate to where the gap was in your 3D Surface Model. The gap should be completely gone.