Specific Example:
Note that it is not sufficient to just put the two nodes atop each other, because unless the lines have a common node, a profile run cannot be created.
I have created an enhancement request for the ability to 'merge' nodes. There is similar functionality in the HAESTAD products for 'Extracting from Graphics' where you can Merge nodes in close proximity. This would be a good option to be able to merge them on import, but in the case where you have mentioned the separate layout, it would be good to adjust the locations of some node which could be separated by some gap and then merge them post creation as well.
Enhancement 1056215 has been filed for the ability to merge nodes within a certain tolerance or distance.
There was a previous enhancement logged against SS4 for this functionality as well for reference. Enhancement 354030 https://communities.bentley.com/products/road___site_design/f/geopak-inroads-mx-openroads-forum/135115/extract-utility-from-graphics/410003#410003
For more information about the Road and Site design tools, visit the Road and Site design WIKI at: http://communities.bentley.com/products/road___site_design/w/road_and_site_design__wiki