What goes into making a good alignment and how do contractors build off of the alignment ??

Hi all. I do a lot of CAD work and I'm trying to gain a deeper understanding of what I'm doing. When I build an alignment I've been told to just center it in between the ROW.

Id like to know how contractors build off of this and if there's any other important aspects to building a proper and useful alignment. reverse phone lookup

I'm working on a project with an existing alignment from some as-builts. The alignment spans miles of roadway. My project is only in a small section of the roadway and I've been told to use the existing alignment. This means I'll only show part of the middle of the alignment. Will this be useful to the contractor or should I create a new alignment?

Hope that made sense. I can clarify if needed. nba reddit