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The ROI of 3D Modeling in TransportationDerricke Gray, Product Manager Bentley Civil Americas
Over the years, technology has progressed dramatically and given surveyors and engineers the ability to process, design and analyze information. However, even as these technologies have advanced, our business practices and deliverables have continued to target the same thing.
2D Plans Production
A Look Back
Incomplete Information Flow
Incomplete Information Flow
3D ModelingThe ability to create 3D models has been around a long time.
In fact, since 2006, we’ve had software applications specifically designed to build 3D models.
Roadway Designer ‐ 2006
Hoover Dam BypassCourtesy of HDR, Inc.(circa 1999)
Traditional Workflows
What we have found though, is that even within organizations that are building 3d models, we are still fitting the model into traditional 2D workflows.
For example, we cut sections from the model and produce average end area earthworks.
And even though we have a model, our primary means of exchanging project data continues to be plan sets.
Traditional Workflows
In reality, the technologies have advanced dramatically while our civil processes and business practices have not. We have the technology, but generally as an industry we have not made the step to using these technologies efficiently throughout our engineering and business workflows.
Impediments to 3D Modeling
http://web.engr.oregonstate.edu/~olsen/NCHRP/NCHRP_15_44_QuestionnaireIterimReport.pdf
VisualizationWhether it’s a feasibility study, looking at design alternatives, analyzing traffic movements or obtaining stakeholder buy‐in, visualization can be an invaluable tool for many projects.
Benefits• Converts complex technical information into easily understood images or animations.
• Eliminates the need to interpret 2D drawings
• Communicates a single, common vision
Design Review“The highest ranked benefit is detection and elimination of design errors prior to construction …”http://ntl.bts.gov/lib/46000/46500/46557/CFIRE_02‐05_Final_Report.pdf
Benefits• “Makes visualization more than just a
pretty picture”
• Finds errors and omissions early in the design process
• Improves decision making
• Improves communication and coordination between disciplines
• Improves quality
• Produces better designs
Machine ControlThe use of AMG (Automated Machine Guidance) in the transportation industry continues to grow.
• Productivity gains (as high as 40%)
• Less repeat work (move dirt right the first time)
• Lower costs (e.g. reduce fuel consumption)
• Greater accuracy
• Better ride
• Safer (e.g. less staking)
• Etc.
Machine ControlIn addition, the technology itself shows no signs of slowing down.
In fact, the industry seems to expanding, as shown by Caterpillar’s acquisition of Underground Imaging Technologies in 2010.
Design to Paver• Date: July 9‐10, 2014
• Location: – Lectures: Oregon State University, Corvallis , OR
– Site: Fort Najaf Army Reserve Training Center
• Website: Designtopaver.org
• Contributors:Oregon DOTOregon State UniversityOregon National GuardFHWA
Bentley SystemsTrimbleLeicaK&E Excavating
SiTech OregonUtility Mapping Services
3D Model
3D Model
Data Transfer• Models– LandXML
• Surfaces• Geometry
– DGN, DWG, DXF• Triangles• 3D LineStrings
• Plans & Stakes– No Plans Given to Construction– No Stakes In The Field
Field Activity Day 1
4D4D models are created when we take the 3D model and add the additional dimension of time by integrating our model with a scheduling application such as Primavera or Microsoft Project.
The ability to sequentially visualize construction design plans through timeallows the contractors and other stakeholders to identify constructability issues that could not have been detected using 2D plans.
– Equipment placement– Material fabrication– Staging– Site organization– Etc.
BIM (Information Modeling)Information Modeling is the process of generating and managing building data during its life cycle. Typically it uses three‐dimensional, real‐time, dynamic building modeling software to increase productivity in building design and construction.
The process produces a model which encompasses building geometry, spatial relationships, geographic information, and quantities and properties of building components.
i.e. all required information is in the model.
Benefits• Reduce errors and omissions
• Improve project quality
• Lower project risk
• Enhanced coordination across disciplines
• Results in data re‐use across the lifecycle
MobilityThe Information Model is only valuable if you can share it with others outside of your environment who may not have the authoring software you used, but still need to not only view the model but readily extract the engineering information as well.
Mobile Apps• View Visualized Model
• Sensor Enabled
• “Panoramic” Navigation
• Engineering Data
• Markup Capabilities
• Clash Detection
• Etc.
Asset Management• Drainage Pipe / Culvert Inventories• Pavement Management Systems• Utilities into GIS Systems• Traffic Management Systems (Signal Maintenance)• Vertical Clearance for Permitting and Truck Routing• Etc.
LidarThe use of LIDAR for data collection continues to grow within the DOTs.
http://web.engr.oregonstate.edu/~olsen/NCHRP/NCHRP_15_44_QuestionnaireIterimReport.pdf
Benefits• Accuracy
• Higher data density
• Fast acquisition and processing
• Minimizes human dependence– Safety
• Weather/Light independence
• Canopy penetration
• Cost
• Etc.
Point Clouds
Iowa DOT
Bentley’s OpenRoads Technology• Software designed to remove any technical barriers to 3D modeling
• Building Better Models– Design‐Time Visualization– Automated Intelligent Updates– Civil Cells– Clash Detection
Case Study
• Thanks to Michael McKee, P.E (Idaho DOT)• Owsley Canal Project
Owsley Canal
Linkable – PDF and JPEG Links
Visual – 4D Modeling
Visual – 3D PDF’s
Thornton IC
Thank You!Derricke Gray, Product Manager Bentley Civil Americas