3D Modelling for Property Valuation in China

A High-resolution Remote Sensing-based Approach
Rapid urban development in China has transformed the cityscapes, with a dramatic increase in high-rise buildings. However, the current 2D property valuation methods neglect the vertical dimension, even though that aspect contains significant indicators that impact property value – such as types of views, scope of vision and daylight. 3D modelling of geographical data can help to change this in high-rise and high-density areas, going beyond 2D to enable identification of complex property characteristics in the vertical dimension too. This article presents research to explore a 3D modelling approach using remote sensing data for more precise property valuation. The accelerating... (read more)
2019-09-26 10:00:54

New Speakers Announced for Construction Innovation Hub at DCW2019

Digital Construction Week returns for its fifth year at London ExCeL on 16-17 October, with a host of new exhibitors and speakers.  The event is known for its impressive lineup with 10 free-to-attend theatres covering everything from BIM to GIS, skills and training to business transformation, connected cities to DfMA, and much more besides.  New for 2019 is the Construction Innovation Hub theatre, which will feature sessions focused on transforming construction through manufacturing technologies and digital ways of working.  Construction Innovation Hub The theatre is the result of DCW’s partnership with the Construction Innovation Hub, an organization that launched 12... (read more)
2019-10-07 09:16:54

GNSS Receivers – Evolution or Revolution?

Past, Present and Future of Positioning
Satellite surveying… are there any industry professionals out there not using it on (almost) a daily basis? Over the last 30 years, GNSS has become the main positioning instrument for most applications, writes Huibert-Jan Lekkerkerk. Of course, there are still some exceptions where correct (relative) positioning is needed and dedicated optical systems such as a total station or level instrument are used, but even these are often set up over control points determined using GNSS techniques. This article investigates the developments in GNSS over the last decade and attempts to predict the future. Around a decade ago, a review of... (read more)
2019-01-30 08:43:20

Trimble to Acquire Cityworks to Expand Digital Asset and Infrastructure Management Solutions

Trimble has signed a definitive agreement to acquire privately held Azteca Systems LLC (dba 'Cityworks'), a leading provider of enterprise asset management (EAM) software for utilities and local government. Cityworks' solutions address the global challenges associated with maintaining and replacing aging utility, transportation and public assets and infrastructure. The transaction is expected to close in the fourth quarter of 2019, subject to customary closing conditions and expiration of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act. Financial terms were not disclosed. Cityworks, based in Sandy, Utah, was launched in 1996 and provides a powerful and flexible office, cloud and mobile EAM software... (read more)
2019-10-09 08:58:20

3D Modelling for Construction

When it comes to 3D modelling for construction, what are the advantages and disadvantages of photogrammetry versus Lidar in terms of accuracy, complexity and cost? Breaking away from laser measurement in construction is a taboo subject, perhaps hampering the use of photogrammetry. In construction, aerial survey has enormous time-saving benefits for measuring groundwork areas. Data can be used for asset classification, construction validation as well as health and safety. In particular, regular scans provide a time series of work in progress to detect new issues, managing risk rather than responding to it. This article looks at the state of the... (read more)
2019-10-15 03:28:52

Esri Joins Forces with 3DR to Launch ArcGIS Drone Collection

Esri has announced a partnership with 3DR, a leading US drone data company, to expand Esri's current drone imagery offering, Drone2Map for ArcGIS, with an end-to-end enterprise drone data and analytics solution for the ArcGIS platform. The ArcGIS Drone Collection offers scalable solutions for users ranging from small operators to enterprise-wide drone programmes. Esri customers can now achieve operational efficiency by leveraging the elastic processing capabilities of the cloud. By adding 3DR's powerful Site Scan unmanned aerial systems flight planning and processing software to ArcGIS, users benefit by having extensive and powerful drone flight planning and image processing, management, and... (read more)
2019-11-13 11:35:59

Geospatial Tools that Help Serve the AEC Industry

Of the dozens of geospatial hardware and software tools currently in use, only a few – such as bathymetric Lidar, GNSS-based vehicle tracking devices and ground-penetrating radar (GPR) – are not directly relevant to the architecture, engineering and construction (AEC) industry. The rest of the tools are. A GIS interprets the geographic context of a project, while the survey-grade GNSS technology builds it; aerial photogrammetry maps the project’s site, as UAVs monitor exterior progress; and mobile indoor scanners such as the Trimble Indoor Mobile Mapping Solution (TIMMS) produce as-built point clouds of the interiors, while building information modelling (BIM) manages the project’s... (read more)
2019-11-27 08:48:24

5 Questions on the Synergy of BIM and GIS

Chris Andrews, senior product manager 3D at Esri, answers five questions about the optimal integration of building information modelling (BIM) and geographic information systems (GIS). There has been much debate on the synergy of building information modelling (BIM) and geographic information systems (GIS). They could be a potentially powerful combination, but what is the best way to maximize the advantages of the two? Not surprisingly, data plays a crucial role in delivering on the promise of transforming infrastructure design and construction. We asked a renowned expert from the field to share his views with our readers. Chris Andrews, senior product... (read more)
2019-12-03 02:09:00

Terra Drone India Signs Partnership with Geo-Plus

Industrial drone solutions provider Terra Drone India has announced that it is joining forces with Canada-based geomatics pioneer Geo-Plus. This partnership makes Terra Drone India an official reseller of Geo-Plus’ innovative land surveying and civil engineering software and mapping solutions in the India market. Geo-Plus is widely known in the AEC (architecture, engineering, construction) industry for its innovative products. Since the foundation of the company in 1987, Geo-Plus has been offering CAD/GIS solutions for 3D measurement, 3D structure, geometry, cadaster, and document management for territories. Creator of the popular Vision Suite, the software family tailored to land and infrastructure works,... (read more)
2019-12-04 10:59:26
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