Civil Survey Solutions - Webcast: Alignments Best Practice
This webcast is about creating alignments in among the survey points of a survey. This is sometimes done by merely turning the breaklines from the survey into the alignment for the design.
We will outline when this is a good and a bad idea and the potential consequences or benefits of different alignment creation in different scenarios. It is hoped that after this webcast, users will have a better understanding of the process of transitioning from a survey to the design phase of a project. To achieve this we will be:
• Evaluating a typical survey and the level of accuracy able to be achieved on site.
• Consider these inaccuracies when deciding on the best method to create the alignments.
• Discuss the different purposes of the alignments depending on the type of works and their location on the site.
0:00 Introduction
7:20 Surveys are Imperfect.
17:07 Best Fit Alignment.
20:26 Componential Best Fit Alignment.
23:43 CAD Line with Snap Tangency.
33:07 Add Curves Between Tangents.
37:47 Flatten Polylines.
38:26 Deviation Consideration.
40:29 Alignment from Survey.
46:39 Inscribed Vs Circumscribed Arc Errors.
49:11 Kerb Return Examples.