Here is a trick known by some Microstation users, and that came out at the end of a class this week.
The work that I left to the students was to draw all the hydrology on the cartographic sheet: rivers, ravines, lagoons ...
Some drew "smart lines" without associating, so that in the end they had a lot of loose lines.
So we use the command "connect linework", which comes in the menu "tools, geographics, topology creation" although in Bentley Map XM comes in "topology cleanup"
For this, a fence is created over the whole area where the adjustment is desired, then the command is activated and a click is made inside the fence.
and ready, the result is that it associates all the linear objects between vertices and converts them into linestrings or polylines.
Subsequently, for purposes of joining polylines manually is the command "create complex chains"
Ah, by the way, this must be done after topological cleaning, at least segmentation at intersections.
And then to ensure that there are no strange things, the rainbow masking is activated that paints in different colors each object to visually detect it.