If you can make changes in the CAD file to correct dimensions labels then you can make the drawing correct.
I haven't done much with CAD, and none with current software packages.?ÿ But I think a basic requirement should be that the software has a line's dimension label tied to the line and automatically know its length and bearing.
You are 100% correct. Most projects today can't be constructed from the PDF/Paper plans alone. I believe 95% of the drawings today come with no benchmarks and no baseline. The CAD files are required for layout. I have seen lots of ridiculous Electronic File Statements. In my experience, when it becomes difficult to get the CAD files due to the long drawn-out writings, the worse the CAD files are in the end. At times, it can be worse when the drawings come from a company that also has a survey department. I have asked Engineers why they don't show BM's on the plans, more than one has told me their surveyor has told them to leave it off the plan.
I tell the clients and owners, that they need to develop a team that works together, working towards the same goal. This way the harder these idiots push to keep data from others on the team, the farther they are pushing future work away.
Agreements in some ways protects both parties.?ÿ I remember getting a call from someone trying to stake points on a different datum than his GPS sensor - US vs Intl foot or project w/assumed coordinate system.?ÿ We use InRoads and Microstation and generally, our design files are translated to dwg for most to use.?ÿ Translations, although rare, can go bad.?ÿ Generally, the paper copy is what the County approved and not the digital file.?ÿ Also, when using digital drawings others have furnished, you generally have a responsibility to go back to the professional who provided that file if any discrepancies.?ÿ This helps both parties plus the owner as it should be a team effort to do whatever you are using the digital data for.
So, there are many reasons for digital data agreements.?ÿ Check the digital data with the approved hardcopy and when you find differences, go back to the professional who provided you the data.
Might be more appropriate to say that there aren't many contractors left that can construct a project without CAD using just the paper plans. I would hope most surveyors could.
Most plans today have no dimensions, no bm and no baseline.?ÿ Yes, a surveyor can scale the paper plans for layout. But no two will place it in the same position when drawings are at a scale 1" = 50' scale or higher.
Interesting. They should have station and offsets at least. The dimensions are usually in the details. I suppose every area is different.
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I believe the train of thought nowadays is that plans are for permit approval while the CAD is used for construction.
What do your insurance provider and licensing board offer in regards to it??ÿ Our provider will critique things if asked.
