Triangulate surface

Are you trying to include the black breaklines in the traingulation?

You can manually place the breakline features using the Surface>Design Surface>Place Feature command.  You can "draw" the features by snapping from point to point.  There is no automated way to place those features.

The lack of breaklines in your existing ground DTM highlights a weakness in your collection of the existing ground data.  It is extremely important that the breaklines are identified at the time the data is collected.  If you are surveying, they would be identified in the field as part of the data collection.  If the data is coming from point clouds or photogrammetry, they would be identified when the data is processed.

As Frank says, InRoads SS2 is dead in the eyes of Bentley.  Bentley will not spend any time trying to find a solution for this problem.

You can't design the existing surface because the existing surface wasn't designed in the first place. If there was no relationship between the triangulation and the linework in the beginning, there is no way to way to programmatically add it in after the fact in software that old

or in new software, for that matter - random points are just that!! There is no way to make lines from random points.

I cant  try create breklines just I want to change my wrong triangles, breklines is first way we can use rotate triangle second way but I am saying another way when inroads making triangulation use the points location for find aligment offset and decide one edge triangle (this edge will be between equal or nearest offset to aligment) 

So...to copy the alignment a defined offset and drape it onto your existing surface as a breakline? That's honestly the only thing I can think of, and that will not eliminate any points, only add them. It would, however guarantee that those lines would be used to "define" your existing roadway. Whether that would be correct or not would end up your responsibility.

So...to copy the alignment a defined offset and drape it onto your existing surface as a breakline? That's honestly the only thing I can think of, and that will not eliminate any points, only add them. It would, however guarantee that those lines would be used to "define" your existing roadway. Whether that would be correct or not would end up your responsibility.

You still do not understand what I want to explain The program is based on the three closest points when creating a triangle. The program I want is to choose two of the three from the ones closer to the road when choosing these three points.

Actually, what I want to ask is that the program chooses three points that it chooses while creating a triangle by defining a condition.

Be aware, if you manually add new breaklines where only random points originally existed, nearby triangles may reform differently. The only way to force triangles to form a specific way is via breaklines. Any points not used as breakline vertices will form triangles according to the algorithm mentioned in an earlier post, And newly added breaklines can affect the algorithms results. 

There is no automated way to do this in InRoads.  Your only two choices are the two that you have already identified: create breaklines and swap triangles.  Unfortunately, these can only be done manually.

There is a third choice: go back to the field and survey the breaklines.  It's an extreme solution but it may be more effective, and less prone to error, than manually trying to correct the situation for a project of this scope.

It has always been a rule that we DO NOT manipulate surveyed data; at ALL. I agree with Ray that those breaklines MUST be collected in the field for a proper design to be accomplished. 

Mark