HazlipJohn-BentleyDataAcquisition

8/10/2019 HazlipJohn-BentleyDataAcquisition

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BENTLEY DATA ACQUISITIONBENTLEY DATA ACQUISITION


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DATA ACQUISITIONers on equ remen s

MicroStation V8i/GEOPAK SS2 (.566) or

Power GEOPAK SS2 (.566)

o e: ers on . s a en ey up a e o vers on .(08.11.07.566)

or


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ISSUES AND LIMITATIONS . .

When processing an OBS in D.A., Geodesy is NOT beingapplied

D.A. SS2 does not process OBS Taping, SOE, orEccentricity

Tolerances and Error Estimates must be set in aconfiguration variable or defaults will be used. Thisincludes turning on and off the Least Squares

Adjustment.

Use the latest FDOT seed file


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3D vs. 2D

Although a 2D seed file can be used for some purposes,like creating the 2D TOPORD.dgn survey deliverable,

enerall for surve in ur oses a 3D seed file should beused.

If a surface is to be created a 3D seed file is necessar

The future is 3D deliverables


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STYLE FILES ARE PRESET

A Style file is the equivalent of a feature table

For Roadway Design the style file is fdote_10.xml or fdot_ss2.xml

For Right of Way Mapping the style file is fdote_10rw orfdot_ss2rw.xml

In FDOT software the style files are automatically set bythe configuration.

Remember this Key-in: dataacquisition redraw


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ACTIVATE DATA ACQUISITION


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ACTIVATE DATA ACQUISITION


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The D.A. dialogue box and the D.A details dialogue boxwill open and can be docked


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FDOT SEED FILES CONTAIN DESIGN. .


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SETTING UNITS FOR


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Drag and Drop the XYZ File


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Chains are extracted from the OBS with thesame name as e e


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e oo s

Continue dragging and dropping segments into D.A. untilall segments have been added to the field book

The field book can be renamed from Default 1 to anappropriate name

Additional field books can be added by right clicking andselecting New

Data can be added to the New field book by right clickingon that field book.


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POINT SCALES ARE SET BY THE FDOT

Cells will be brought in at 5 times their original scale(1=50).

Line styles for linear features will be brought in at a 1.00scale factor.

To view the line styles at a desired scale from the Modelspull down, click on Model Properties and set the line stylescale to the desired scale.


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LINE STYLE SCALES CAN BE VISUALIZED


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CHAIN EDITING

Data Acquisition has tools for building and editing linearfeatures (chains).

Editing the OBS to add or edit collected chains is also anoption and provides legacy data that can be used acrossmulti le latforms, includin CAiCE and Civil 3D.

For Data Acquisition it is a simple process to delete thefield book and re-drag and drop the XYZ segments tovisualize the updated chains


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Hovering over the chain will give you information about

.


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Right clicking on the chain will give access to chain


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Chain editing functionality can also be accessed from the

. .


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Selecting Manage Point List will allow changes in the


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Features that do not match the Style File will show up in

. .


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Surfaces are created automatically.

The All Field Books surface is created by default. Thissurface is made up of all data in the database.

Checking the appropriate box in the Surface tree willshow the graphics for that attribute.

Right clicking on the Surface will allow the user to export

the surface to permanent graphics or a TIN file.


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rea ng pec c ur aces

Right Clicking on Surfaces in the DA tree will allow theuser to create a new surface

Creating a surface from a selection set will allow users tocreate a surface in a specific area from graphical data inthe current view

Select the desired data, right click on Surfaces andcreate a surface from the field book selection set

DTM point attributes can be edited by using chain editingfunctionalit


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Rename the surface, give a side length and change the


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The DTM Attribute in the chain point list dialogue

.


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Create as many surfaces as is needed.


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rea ng ur aces rom

At the request of the Missouri DOT, Bentley has come upwith a specific workflow for creating a surface directlyfrom a classified LIDAR LAS file usin Data Ac uisition

In the D.A. tree, right click on Surfaces

Import External Surface

mpor


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Create a new surface by Importing a LIDAR LAS file


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Choose the LAS file to import


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rea ng ur aces rom

What is the Z Tolerance ???

Bentley defines the Z Tolerance as being theacceptable vertical error for a project with vertical errorbeing the vertical distance @ 95% confidence level of themaximum oint s acin

NSSDA on Vertical Accuracy: If vertical error is normallydistributed, the factor 1.9600 is applied to compute linear

error at the 95% confidence level

Therefore NSSDA defines Vertical Accurac = 1.9600 xRoot Mean Square of the Elevation (RMSE)


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Choose the LAS file to import, choose classifications, set

,


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Point features are reduced by the filter. Click the

.


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CREATING FDOT SURVEY

Creatin the GDTMRD file can be done usin GEOPAKand the TIN file created from D.A.

Creatin the DREXRD, TOPORD, and UTEXRD files caneasily be done by visualizing the graphics using thelevel display filters

Individual features can be visualized using the featurestyles in the D.A. tree

Check to visualize, uncheck to turn off visualization ofgroups or individual features


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To visualize the DREXRD, TOPORD or UTEXRDelements select the appropriate filter in the level displaymanager

To create the DGN file put a fence around the elementsin the view

Type in the Key-in box fence file and the windowsSave As dialogue box will open so a file can be saved

Type in a file name and press Open. The dialogue boxwill close and then you must click on the view to accept


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Note that if this is a 3D TOPORD.d n file a 2D file mustbe created as the final deliverable

Close the current Data Ac uisition ro ect file and o enthe new 3D TOPORD.dgn file.

Click on File>Ex ort>2D to create the TOPORD01.d nfile

As in an surve deliverable normal MicroStation editin

will be necessary to complete the deliverable for deliveryto design


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CREATING FDOT RIGHT OF WAY

In Data Acquisition there is no need to re-import or

Way deliveries even though levels, cells, line styles andattributes are significantly different

Change the FDOT Menu bar configuration fromRoadway Design to Right of Way Mapping

Re-open the DGN file and type into the Key-in box,dataacquisition redraw


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The R/W Style File is automatically attached. Type in the

-


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CREATING FDOT RIGHT OF WAY

- Style File features

however, they include:

- R/W style monuments- Some cells have a mask- Many of the dashed lines for existing point features

are now solid lines

- Some custom line styles like railroad centerlines aredifferent in right of way


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Creating The TOPORW File

The TOPORW can be visualized by checking the. .

- Check the box for Existing Topography- Check the box for Existing Monuments- o er oxes s ou e unc ec e un ess e

feature is desired to be included in the TOPORW File

identical to creating the TOPORD (Use fence file andthen export to a 2D)


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Data Acquisition will accommodate importing CAiCE

projects-

Right of Way)

- Choose the a ro riate seed file- Drag and drop the CAiCE PT4 file into Data

Acquisition

All i d h i i d i D


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All points and survey chains are imported into Data

C ti b d ith l d l ill t li it


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Creating a boundary with a closed polygon will set limits

To Import a CAiCE S rface right click on S rfaces and


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To Import a CAiCE Surface, right click on Surfaces and

Right click on Boundary in the surface tree and Import


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Right click on Boundary in the surface tree and Import

The DTM is limited to the selected boundary


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The DTM is limited to the selected boundary

EXPORTING POINTS AND CHAINS TO


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Data Acquisition is a work in progress

At some point a left turn must be made and data movedto GEOPAK

SS3 will have improvements over SS2 and the left turnwill be further down the road

Eventually there may not be a need to use GEOPAK for

surveying purposes



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Right Click on the Field Book in the D.A. tree and select

Export to>GEOPAK Format

The format is a GPK file

Point and survey chain features along with descriptorswill be included

Documents

HazlipJohn-BentleyDataAcquisition