CIM – 21st Century Tools, Technologies and Processes for Infrastructure Projects
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CIM – 21st Century Tools, Technologies and Processes for Infrastructure Projects / Fernanda Leite. Presented at the 2016 CTR Symposium: http://ctr.utexas.edu/ctr-symp/
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CIM – 21st Century Tools, Technologies and Processes for Infrastructure Projects
- 1. COLLABORATE. INNOVATE. EDUCATE. CIM – 21st Century Tools, Technologies and Processes for Infrastructure Projects Fernanda Leite, Ph.D. Assistant Professor, CEPM Program Civil, Architectural, and Environmental Engineering The University of Texas at Austin The Annual CTR Symposium 3rd April 2016
- 2. COLLABORATE. INNOVATE. EDUCATE. CIM Research Group • William O’Brien, Ph.D., P.E. • Fernanda Leite, Ph.D. • Nabeel Khwaja, P.E. • Cameron Schmeits • Bharathwaj Sankaran • Jojo France-Mensah
- 3. COLLABORATE. INNOVATE. EDUCATE. Agenda • Building Information Modeling (BIM) – An Introduction • From BIM to Civil Integrated Management (CIM) • Applications of CIM – 3D/4D Modeling for TxDOT projects • NCHRP 10-96: Guide for CIM at DOTs
- 4. COLLABORATE. INNOVATE. EDUCATE. Introduction • Building Information Model (BIM) – “a digital representation of physical and functional characteristics of a facility” (NBIMS 2014) • BIM integration with project delivery becoming more common in building industry – Model-based cost estimating, scheduling – Model-based progress monitoring, activity analysis – Building systems clash detection (Mechanical, electrical, plumbing, HVAC, Fire.) – As-built data collection – Energy performance analysis… NBIMS. (2014). About the National BIM Standard-United StatesTM. Retrieved from http://www.nationalbimstandard.org/about.php
- 5. COLLABORATE. INNOVATE. EDUCATE. BIM enables lifecycle transformation Courtesy: Autodesk Inc.
- 6. COLLABORATE. INNOVATE. EDUCATE. BIM for highway infrastructure? • Applications to highway sector relatively new – Identified as a potential area with benefits Source: McGraw Hill report (2012)
- 7. COLLABORATE. INNOVATE. EDUCATE. BUILDING INFORMATION MODELING TO CIVIL INTEGRATED MANAGEMENT (CIM)
- 8. COLLABORATE. INNOVATE. EDUCATE. BIM for Highways – Unique Challenges • Highway sector has specific challenges – Limiting public procurement framework – Large Horizontal footprint (Modeling boundary) – Major earthwork - higher degrees of uncertainty and less modeling precision – Increased coordination with external stakeholders • ROW acquisition • Utility companies and communities/businesses in neighborhoods • Public Information (commuters) • Document-based workflow – Diminishes utility of electronic data (source) – Causes difficulties in public outreach efforts, design reviews, conflict analysis, constructability reviews, construction processes
- 9. COLLABORATE. INNOVATE. EDUCATE. BIM for Highways – Unique Challenges • Utilizing BIM can assist in Public Information, Visualization (nD) Design coordination (utilities), Constructability analysis Automated Machine Guidance (AMG) Site logistics, Work area Management Asset and inventory management BIM functions and benefits not isolated! interdependent and share synergestic benefits and challenges, with several other technologies relevant for lifecycle An overarching Implementation framework for digital project delivery and asset management vital for agencies (Departments of Transportation) • Factor the unique challenges and lifecycle interdependences • Need to consider the digital workflow (CIM)
- 10. COLLABORATE. INNOVATE. EDUCATE. Definition of CIM “Civil Integrated Management (CIM) is the technology-enabled collection, organization, managed accessibility, and the use of accurate data and information throughout the life cycle of a transportation asset. The concept may be used by all affected parties for a wide range of purposes, including planning, environmental assessment, surveying, construction, maintenance, asset management, and risk assessment.” - FHWA, AASHTO, ARTBA (2012)
- 11. COLLABORATE. INNOVATE. EDUCATE. CIM for highway infrastructure
- 12. COLLABORATE. INNOVATE. EDUCATE. APPLICATIONS OF CIVIL INTEGRATED MANAGEMENT (CIM) – ILLUSTRATIVE PROJECTS FOR 3-D/4-D MODELING (TxDOT)
- 13. COLLABORATE. INNOVATE. EDUCATE. Woodall Rodgers Deck Plaza project Issues examined: Complexity, productivity analysis in beam placement Visualization of lane closures
- 14. COLLABORATE. INNOVATE. EDUCATE. President George Bush Turnpike and I -30 Issues examined: • 4D simulation for schedule analysis • Constructability reviews – ROW acquisition, utility relocation, design/planning issues.
- 15. COLLABORATE. INNOVATE. EDUCATE. Dallas Horseshoe Project Issues examined: • Parametric 3D modeling and 4D simulation – Terrain, Highways, bridges • Enhanced design visualization (rendering and animations)
- 16. COLLABORATE. INNOVATE. EDUCATE. Other Emerging Applications 16 Courtesy: FHWA
- 17. COLLABORATE. INNOVATE. EDUCATE. NCHRP 10-96: GUIDE FOR CIM AT DOTS OBJECTIVE, METHODOLOGY, AND GUIDEBOOK DEVELOPMENT
- 18. COLLABORATE. INNOVATE. EDUCATE. NCHRP 10-96 Team members • The University of Texas at Austin – William O’Brien – Principal Investigator – Fernanda Leite – Co-Principal Investigator – Nabeel Khwaja – Co-Principal Investigator – Bharathwaj Sankaran – Graduate Student – Ignacio De Sande Palma – Graduate Student • The University of Colorado at Boulder – Paul Goodrum – Co-Principal Investigator – Keith Molenaar – Co-Principal Investigator – Guillermo Nevett – Graduate Student – Joshua Johnson – Graduate Student
- 19. COLLABORATE. INNOVATE. EDUCATE. Research Objectives The objective of this research is to develop a guide to CIM that DOT managers can use to a) Identify which CIM tools and processes to implement; b) Identify the particular benefits, obstacles, and costs; and c) Identify practical strategies to assist with implementation.
- 20. COLLABORATE. INNOVATE. EDUCATE. Methodology National Surveys • Agency surveys: Organizational issues (standards, contracts, legal issues, agency-level CIM utilization, benefits, costs) • Project surveys: Project-level performance improvements, challenges, identification of case studies for detailed analysis Case studies • Detailed interview of projects that demonstrated successful utilization of one or more CIM practices • Identify practical strategies, lessons learned, and recommendations CIM Guide • identify practical strategies and propose framework for increasing reliance on digital project delivery and asset management
- 21. COLLABORATE. INNOVATE. EDUCATE. Scope of CIM tools
- 22. COLLABORATE. INNOVATE. EDUCATE. CIM Tools Affect Many Functions Each CIM tool improves the performance, predictability or transparency in executing one or more CIM functions.
- 23. COLLABORATE. INNOVATE. EDUCATE. CIM Guidebook • NCHRP 10-96 Guidebook includes an implementation framework for CIM at Department of Transportation • Provides integrated view of CIM tools and functions to support agency-level planning for investments in CIM • Supplements available guidelines and case examples of specific CIM functions at the agency
- 24. COLLABORATE. INNOVATE. EDUCATE. CIM – Maturity Model • NCHRP 10-96 provides an implementation maturity model to help assess current capabilities and next steps • Use the maturity model to plan and better connect CIM initiatives across the agency
- 25. COLLABORATE. INNOVATE. EDUCATE. CIM Implementation Considerations • CIM implementation should be a planned effort – Consider agency goals and capabilities – Consider existing investments in CIM technologies and functions • CIM is not just about the technology – consider: – Project delivery strategies – Standards and specifications – Training needs and culture – Governance and policy – Information management • CIM should have implementation champions • CIM initiatives should have provision for lessons learned
- 26. COLLABORATE. INNOVATE. EDUCATE. NCHRP 10-96 CIM Guide – Layout • Identifies CIM tools and related functions for project delivery, their uses and benefits • Proposes a three- stage framework for integrating CIM with agency workflow • Compiles illustrative and case examples to demonstrate the framework Introduction • Overview of CIM tools and functions CIM workflow • Impact of CIM on project delivery Framework • Planning of current capabilities (maturity model) • Assessment of future needs (costs-benefit analysis) • Implementation considerations ( best practices) Resources • Literature review • Current state of practice (Surveys) • Case studies (lessons learned) Appendix • CIM resources/references
- 27. COLLABORATE. INNOVATE. EDUCATE. Thank you for listening! We are here to help.
Notas do Editor
- Description of project: This project (~$ 68 M, completed in 2011) is a beautification and renewal construction project in Dallas, TX. The end result of the project is the creation of a 5.2-acre park that will serve as a “central gathering space for Dallas and its visitors to enjoy the heart of the city. The existing depressed section of the freeway involved in the project will be transformed into a transportation tunnel system underneath the park that will include life safety systems as required by the TxDOT. It had three Construction Packages (Base Park) with different agencies coordinating together • City of Dallas Public Works – Storm Sewer Construction • TxDOT – Deck Package • City of Dallas Parks and Recreation – Park Landscape and Hardscape Packages This project is also characterized by the placement of large precast beams - 60 tons and 100 feet long – and precast trench panels. According to the contractor, most of the beams can be safely placed only with the use of the largest crane available in the region (consider limited work space). The 3-D model and associated 4-D animations were used to evaluate possible crane placement scenarios - placing the crane on the main lanes or on the frontage roads – and readily communicate traffic impacts and accessibility issues. In addition, colored images and animations, depiction of lane closures were also added to the model to increase its utility for Public Information
- Description of project: The President George Bush Turnpike offers a significant east-west route within a major developing economic area in the northern half of the Dallas-Fort Worth Metroplex. (Completed in 2011.) The project involves constructing a bridge over Lake Ray Hubbard, four direct connectors that connect the two highways as well as the rebuilding of the I-30 section connecting with the PGBT. Scope included a section of the Eastern Extension of the President George Bush Turnpike (PGBT), a major highway corridor in Dallas. The 3-D model of the PGBT project allowed the detection of two kinds of conflicts involving utilities. First, space conflicts between existing utilities and the proposed alignment of the storm sewer system were found. Second, drilled shafts needed to support the direct connectors were found to be intersected by two water and sewer lines. Lines. These conflict identification helped TxDOT prioritize utility relocations. The 4-D CAD model, color-coded, was used to check the ROW acquisition process and schedule, which corresponds to a significant phase in a transportation project and represents an important part of the total project cost.
- Description of the project: The project ($ 800 Million) intends to replace the ageing existing bridges over the Trinity River and existing levee system with eight new bridges that will, once completed, play a vital role in alleviating the congestion of the city-bound traffic. The MMD signature bridges, designed as a steel arch structure, will be erected along the sides of I-30 and serve the pedestrians. The Mixmaster, the region where the I-30 and I-35 converges near downtown Dallas, will be widened to include 23 lanes when completed (2017). Parametric 3D modeling of I-30 and I-35 highways and bridges were done based on detailed design submittals. 4D simulation was created using schedule and subsequent monthly updates. Existing trinity bridge was also modeled using the archived design drawings and topological survey data for the project. Sketch-up models of Downtown buildings were also included to enhance contextualization of the model. Overall, the model helped in : visualizing the complex demolition alongside new construction activities (Figure on top right) Advanced rendering images and drive-through animations for public information. Addition of lane markings and signage infrastructure (in progress)
- This slide shows other emerging applications that are related to 3D modeling. Top left: This picture shows a fully 3-D Digital Terrain Model (DTM). While DTMs are often used to represent the information on Existing Ground (EG), the design, detailing, and deliverables of proposed ground, layers of pavements have been generally following 2-D document-based workflow (plans, elevations, and cross-sections@ 50ft etc.). With the dvancements in design software and processes, several DOTs have been envisioning or in the process a collaborative 3-D design environment. It has also become conceivable to design and deliver design solutions for structural elements and utilities in 3-D. Top right: This picture represents the point cloud data of a bridge. Many agencies, including TxDOT, are investing in scanning and Mobile LiDAR technologies to collect digital data of their asset for various purposes. While many studies have focused on technicalities of data collection processes, DOTs are now looking towards investing in standards and specifications, studying ROIs for integrating these tools with their business workflows Bottom middle: This image is a representation of Automated Machine Guidance (AMG), a technology that utilizes machine-readable 3-D data and real-time positioning systems to automate the pavement construction activities (such as excavation, grading, compaction, among others). This tool can improve productivity, enhance site safety, and improve overall quality of pavement. The figure shows Slipform Paver Machine Controls for concrete paving. The 3D model provided the design surface of the proposed overlay. The stringless paving method selected, utilized multiple robotic total stations with prisms mounted on the paving machine. Vertical control reference points were established at 250-foot intervals on alternating sides of the roadway. This kept the paving equipment, crews, and terrain from interfering with the line of sight between the paving machine and reference control points. In order for the robotic total station to establish correct X,Y,Z coordinates, the station needed to have a triangulation system which required a clear line-of-sight (electronic stringline) to at least three reference points. With the advancements in construction technologies, more electronic and hydraulic controls can be added to make AMG more efficient.