Transforming Ayacucho into a digital city

Author:Renata Barradas Gutiérrez

Digital cities initiatives aim to collect valuable data and capture all surroundings in urban settings to generate smart models, supporting decision making processes and facilitating the delivery of new urban services. The mobile mapping, reality capture, airborne and asset management solutions provided by Hexagon Geosystems' Division are used in cities around the globe helping to digitise urban centres.

意识到3D模型有助于告知人们对现实的看法，并为在城市运营的地理参考数字基础，非营利组织Patronato Pikimachay接触了全球领先的全球建筑和设计公司C95 Creative，以创建一个智能的数字城市秘鲁Ayacucho的模型。

Ayacucho的智能数字城市项目

C95创意专家于2017年开始了这座秘鲁城市的3D数字建模。为了进行精确的数字调查，这将是数字城市模型的基础，该项目收集了Ayacucho历史中心的150个街区的地理参考点云。使用地理系统解决方案的组合，来自在三天内收集50公里的轨迹整个项目可交付成果在六个月内完成。

“在决策未来的城市干预措施中，智能城市的宝贵数据库至关重要。我们已经能够为文化遗产，编目，恢复和翻新工程产生巨大价值的数据库。我们将继续探索并寻找使用Leica Geosystems将这项技术应用于我们的领域的新方法，”said Irene Ibisate, architect and director for the smart city Ayacucho project at C95 Creative.

除了获得和处理数据的速度之外，用覆盖的图像的点云的质量和精度使C95创意：

• 创建整个市中心的3D模型
• 完成主要城市元素的目录
• Develop a study of the current situation and conservation state
• Do a cultural heritage value and conservation study
• 生产更新的3D卡德斯特和城市的几何数据库，具有实际维度
• Generate videos and images of the city to serve as reference for future intervention works.

“要在BIM（建筑信息建模）中创建几个月来整个城市的再现是一个巨大的挑战。由于使用Leica Geosystems产品获得的精确性和速度，我们能够在短暂的一小段数据中使用完整的数据来捕捉现实bob综合app下载多少时间，”said Ibisate.

数字化环境

Given the limited time for data collection and great extension of the site, scanning had to be fast. Reality capture systems from Geosystems increase the flexibility and mobility of professionals to map, geo-position, capture and extract features over LiDAR or photogrammetry measurements in restricted areas with millimetric precision in an extremely agile and effective way.

To capture the entire centre of Ayacucho, C95 Creative started the data collection with the Leica Pegasus:Two. With this mobile mapping sensor platform, data from a 50-kilometre trajectory was collected in three days. Laser scanning was done with the Leica ScanStation P40, to increase the level of detail of the pedestrian areas and squares with cultural heritage assets.

“It would be impossible to do this type of project with traditional solutions and tools. The speed and precision that Leica Geosystems products have allowed us to work remotely with a total knowledge of the site,”said Maria Pascual, BIM director at C95 Creative.

The data was processed and exported as imp.pts to Autodesk Revit, a BIM software. Leica Cyclone 3D point cloud post processing software, was used to post process the point clouds. To create a BIM model, the team worked with Leica CloudWorx and Leica JetStream software, allowing the better modelling and inclusion of the point cloud within the Autodesk Revit model.

"To establish the point clouds as the database was the only way to pursue a project of this magnitude. To make our BIM model through powerful products like JetStream helped to speed and invigorate this process. Projects end up with an added value due to the quality and precision obtained from these latest tools, which allow to create a large data base available in different formats and platforms,”said Pascual.

Beyond cultural heritage value

Urban planners, construction companies or government officials need to have a more dynamic perception of a city with georeferenced data that mirrors reality to produce any application or service and指导未来的干预措施。

3 d模型允许文档,管理,更新或主要tain the assets in a city. To meet UNESCO’s standards and have the historic centre of Ayacucho declared as a World Heritage Site, recovery and maintenance works need to be made. A digitalised city model would be the cornerstone to create more sustainable and efficient urban environments critical to social and economic development.

The 3D models delivered by C95 Creative will be the base for any architectural intervention within the area, guiding the cultural heritage evaluations and reconstruction of protected city elements, which could degrade through time.

除了文化遗产价值之外，可交付成果还用于其他目的，例如：

• Virtual reality (VR) and augmented reality (AR) of Ayacucho
• Previsualisation of plans
• Urban simulations
• Touristic applications
• 城市改进分析

Unleashing the full potential of reality capture

C95 Creative将设计达到最小的细节。AEC行业的国际领先公司之一知道质量工具很重要，因此它已经使用Leica Geosystems产品了很长时间了。bob综合app下载

“C95 has found with Leica Geosystems reality capture solutions, the perfect tools for its BIM work flow. The Pegasus:Two allows to generate data of big areas in a short amount of time. The P40 is used for interior design, rehabilitation, restoration, refurbishment, engineering and architecture for its scan precision and speed. It is used together with the BLK360 to generate data of different landmarks of a site and obtain as-built models. In addition, the point clouds are used for any kind of digital surveys, data collection for simulations, reports, VR and AR,”said Pascual.

To stay relevant, improve processes, keep increasing the quality, and give an added value to all its projects, C95 Creative keeps introducing Geosystems state-of-the-art technologies and processes in its works.