hola
te recomiendo ver los videos de understanding Survey Features definitions.
https://learn.bentley.com/app/Public/ViewLearningPathDetails?lpId=113451
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
thank you very much NIco!