Is there a tool in MicroStation that will let me delete colinear/redundant vertices?
if there are duplicated vertices you can use this MicroStation VBA macro.
I don't know about similar tool to remove colinear vertices as it's a bit more complex topic. But if you know your will work with a similar file often, it looks wise to think to create such tool. To use Delete Vertex manually will work, but requires quite long time to delete all vertices.
Bentley Accredited Developer: iTwin Platform - AssociateLabyrinth Technology | dev.notes() | cad.point
drop the linestring and use the create linestring command to recreate it, tick the simplify geometry box?