Helsinki Creates 3D City Models to Promote Commercial Research and Development - Digital City Initiatives by Reality Modeling Technology
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Helsinki Creates 3D City Models to Promote Commercial Research and Development -  Digital City Initiatives by Reality Modeling Technology - 1

Advancing Infrastructure Project Summary Organization: Helsinki Solution: Reality Modeling Location: Helsinki, Finland Project Objective: • Generate 3D reality models of the city of Helsinki for visualization and city analyses to promote digital city initiatives. • Implement an open data approach with city residents and companies for commercial research and development. • Deliver pilot projects that demonstrate the power of reality modeling technology for applications. Products used: Bentley Map ®, ContextCapture, Descartes, LumenRT, Pointools, ProjectWise ® Helsinki Creates 3D City Models to Promote Commercial Research and Development Helsinki Heads Digital City Initiatives by Leveraging Bentley's Reality Modeling Technology Fast Facts • Helsinki used ContextCapture to generate a 3D model of the city to improve Helsinki's internal services and promote smart development. • The reality mesh was created from more than 50,000 oblique images covering 500 square miles. • ProjectWise served as the collaborative interface to manage and share data across internal and external teams. ROI • Bentley's advanced software capabilities enabled the team to generate two 3D models at lower than expected costs. • Using the software on other projects will help the city meet its carbon neutral goals. • Integrating the models with the city's internal processes provides realistic timetables, reduces errors, and digitizes operating chains. A New Generation of City Models Helsinki, Finland's capital and regional center, is experiencing booming development and a growing urban population of more than 600,000 residents. Helsinki has a long tradition of 3D city modeling dating back to the mid-1980s. To support city growth, promote digital city initiatives, enable new commercial ventures, and implement programs with university partners, Helsinki has developed a new 3D representation of the entire city using innovative, advanced modeling technologies. "The first models of Helsinki were made in 1985. Lots of people worked with them and we are continuing this heritage. Our project is delivering a new generation of city models to Helsinki," explained Project Manager Jarmo Suomisto. As part of a three-year initiative, Helsinki launched the EUR 1 billion undertaking to capture city assets and create rich 3D city models of the present-day infrastructure that could be shared with internal and external stakeholders, as well as the public, and showcase the power of reality modeling through a collection of pilot projects. Known as Helsinki 3D+, the project required surveying more than 500 square kilometers, mapping more than 600 ground control points, and managing and sharing large amounts of data. To meet these challenges and deliver accurate city models within the prescribed period and budget, Helsinki required integrated, comprehensive reality modeling and information management capabilities. Integrated Applications Facilitate Reality Modeling Options Helsinki used Bentley's reality modeling technology for geo-coordination, optioneering, modeling, and visualization. The team produced large-scale base maps and geo-coordinated utility networks with Bentley Map. Using a combination of LiDAR laser scanning and oblique photogrammetry, they gathered terrain and surface data, and captured more than 50,000 images of the city and surrounding islands, comprising 11 terabytes of data. ContextCapture enabled Helsinki to produce the final detailed 3D reality model with an overall accuracy of up to 20 centimeters. In addition to delivering the reality mesh, the Helsinki 3D+ project required the generation of a 3D city semantic information model in CityGML format. The model is based on a city scan made in 2015 but includes new point clouds and oblique images. Point clouds were used to generate terrain and surface models while the oblique images generated textures for the CityGML model and to process the reality mesh model. The interoperability of Bentley technology enabled the team to use the same raw data gathered for the model to produce this digital city model, which is a database model that enables versatile, advanced city analyses and simulations that can be enriched with analytical results. Bentley's powerful integrated reality modeling capabilities significantly lowered the cost of producing both models covering the entire Helsinki city and outlying archipelago, with the city model being one of the largest consistent reality models in existence. "It is not only the reality mesh or only the CityGML intelligent model. We need both," stated Suomisto. Having two models extends applications for digital city initiatives, research, and development. Helsinki used Bentley applications to create a reality mesh and a CityGML intelligent model of the city. An Open Data Approach Optimizes Information Mobility Significant to the success of the Helsinki 3D+ project was the ability to efficiently and effectively share the models and project data and collaborate with stakeholders and the public. "We want to get the people of the city of Helsinki involved with these models and understand them," explained

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Helsinki Creates 3D City Models to Promote Commercial Research and Development -  Digital City Initiatives by Reality Modeling Technology - 2

“The first models of Helsinki were made in 1985. Lots of people worked with them and we are continuing this heritage. Our project is delivering a new generation of city models to Helsinki.” – Jarmo Suomisto Helsinki Project Manager Find out about Bentley at: www.bentley.com Contact Bentley 1-800-BENTLEY (1-800-236-8539) Outside the US +1 610-458-5000 Global Office Listings www.bentley.com/contact Suomisto. “For example, we have [implemented] a new citizen interaction platform for city planning.” The team enlivened the models and produced animated visualizations and presented them to the...

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