CASE STUDY Project Summary Organization CEDARVILLE Engineering Group, LLC Solution Government Location Coatesville, PA, United States Project Objectives • Deliver an accurate 3D terrain model to support the redevelopment of Coatesville’s largest brownfield site. • Challenge traditional survey methods to generate a 3D reality model that allows users to visualize and measure topography and ground conditions for planning and design. Products Used ContextCapture Fast Facts • The comprehensive 3D model of the brownfield area is a valuable resource that the city can use for related economic planning and development projects. • Reality modeling drove the success of this project to the extent that CEDARVILLE has embraced the use of ContextCapture for future infrastructure projects. ROI • Using ContextCapture, CEDARVILLE generated a high-resolution 3D reality model from more than 750 aerial photos, site photographs, and old survey data in mere hours. • The flexibility and interoperability of Bentley software enabled CEDARVILLE to overcome traditional survey restraints and produce an accurate 3D reality mesh of the constrained footprint, eliminating the need for costly and risky on-site visits. • The 3D terrain model provided the necessary details to help city planners and engineers accurately calculate 22,400 cubic yards of stockpile fill, saving significant costs on otherwise purchased clean fill. ContextCapture Underpins the City of Coatesville’s Largest Brownfield Redevelopment CEDARVILLE Engineering Group Produces Accurate 3D Terrain Model Eliminating the Need for Costly On-site Surveys of the Constrained Footprint Planning Redevelopment of a Former Industrial Site Coatesville, the poorest community in Chester County, Pennsylvania’s wealthiest, has suffered from the exportation of manufacturing and industrial jobs that have left a once thriving steel-producing city struggling to prosper amid a degrading infrastructure. To facilitate economic development, the Coatesville Redevelopment Authority (RDA) is working to rehabilitate commercial, residential, and industrial facilities that are now brownfield sites. As part of its interest in promoting the community redevelopment and sustainable growth, CEDARVILLE Engineering Group (CEDARVILLE) provided at no cost to the city or RDA conceptual design and planning services for a large brownfield redevelopment project known as “The Flats.” To deliver 3D conceptual design plans, CEDARVILLE needed to survey existing site conditions of the former steel-mill location. Spanning 30 acres, “The Flats” encompasses abandoned foundations from demolished industrial structures, hazardous materials, and soil contamination, and is subject to railroad intrusions and floodplain vulnerability. These conditions made it expensive and potentially dangerous to perform a traditional on-site survey and required the project team to consider alternative solutions to address the survey restraints. With special procedures and permits needed to enter the site, “it could be a USD 40,000 effort to get a traditional survey,” commented April Barkasi, founder and president of CEDARVILLE. Given the restricted site access and detailed analysis necessary amid a modest budget, CEDARVILLE needed accurate, scalable software to safely and cost-efficiently capture a 3D model of the existing terrain conditions for effective redevelopment planning of “The Flats.” Reality Modeling Provides Optimal Solution Challenging cost-prohibitive and risky conventional survey methods, CEDARVILLE explored numerous options to safely survey the existing terrain and accurately model the site. The team compiled various disparate data forms already available, determined additional data needs, and ultimately decided that photogrammetric reality modeling provided an optimal, CEDARVILLE captured more than 750 aerial photos via a drone in a matter of 20 minutes, and using ContextCapture, incorporated base imagery to build a precise reality model. cost-effective solution. This new technology allowed CEDARVILLE to survey the site using unmanned aerial vehicles (UAVs) to capture simple photographs, eliminating the need for an on-site surveys, and create an accurate model as a texturized mesh. Numerous reality modeling applications are available, but CEDARVILLE required an interoperable technology that could handle the capacity of the 30-acre brownfield site, the highresolution images, and the existing data and metadata, which could then generate an accurate 3D mesh needed to work with design cross sections and analysis profiles. Based on these requirements, CEDARVILLE determined that Bentley’s ContextCapture met the scalability, engineering precision, interoperability, and modeling criteria for the project. “We wanted to generate topographic data as efficiently as we could,” explained Barkasi. Using ContextCapture for reality modeling provided the flexibility and precision necessary for the team to timely and cost-efficiently deliver to the RDA its conceptual planning assessment and designs for the redev

surface model to articulate its recommendations and findings for design options, grading, and infrastructure planning. The texturized mesh provided a complete visual rendition of the project, easily recognized and usable by the team, the client, and the stakeholders. innovative tools in technology, we have developed a process that efficiently creates 3D scalable models with precision and accuracy. Reality modeling is where infrastructure of the future begins.” – April Barkasi, Founder and President, CEDARVILLE Find out about Bentley at: www.bentley.com Contact Bentley 1-800-BENTLEY (1-800-236-8539)...