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SubscribeREFERENCE PLANES 002
...a practical example (part2) - the finishing steps...
We’ve got the planes positioned and the profiles extracted… all we have to now is
- create the design profile and
- build the finished corridor.
This is a follow on from previous posts:
“Widen at Grade.. the concept”
“ref planes 002 a practical example (part 1)”
COGO functionality in Civil 3D - Interpolate Points...
I’ve just come from a conference where I was reminded of a Survey Feature that we often forget to show off in presentations - the functionality and options available in Civil 3D to create Points manually.
The scenario is that an intersection has been surveyed and the point where the 2 CL’s meet has not been picked up. The solution is to interpolate the Point from the Main road and join it to the Side Road (the dashed blue line above) so the triangulation forms properly.
This is just one of the options available in the Points > Create Points toolbar. Once you know the general gist of one of them…
REFERENCE PLANES 002
...a practical example (part1)
One of the most common reconstruction jobs being done for Road Authorities these days is adding bus turning lanes to existing intersections.
The goal is to minimise the work on the existing roads by grading the new string to preserve and extend the existing road crossfall where possible. The challenge is to control the drainage around the new kerb - its a perfect example of reference planes in action.
This is a follow on from a previous post on the topic “Widen at Grade.. the concept”
REFERENCE PLANES 001
...widen a road at grade - the concept
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At every training session we’ve done for local councils where road reconstruction is the brunt of the work being done, we get told that green field work is irrelevant and there is really only one question they want to know about:
“what is the easiest and most reliable way to widen a road at its existing grade?”
It starts our reasonably simple but can become complex when the road is suddenly part of an intersection which also has to be partially reconstructed while making sure the crossfalls stay within the max/min tolerances (roundabout reconstruction for eg).
The answer to all this (and a lot more) is REFERENCE PLANES
Large Data Sets - filtering point files
Credit for this one goes to Alec Tadman from Connell Wagner.
He came up with the innovative idea and emailed me - I just put the SQL code together (with a little help from my friends..)
The basic idea is to keep the points near the specified contour intervals (blue) and get rid of the rest (red), before building the contours.