Bridging the Gap between Geospatial and Construction

There is certainly a gap in information exchange between the geospatial and construction domains. This is a serious issue, mainly because geospatial systems and engineering surveys are not yet aligned and integrated with building information modelling (BIM). The BIM method is expected to move construction activities from plan-based individual work to model-based collaboration. Such a paradigm shift will bring huge opportunities regarding planning, building and management of the built environment in a more productive, open and sustainable way. Although it is still difficult to entirely close the gap between these two fields, this article shows how that gap can at... (read more)
2020-02-14 09:44:12

Bridging the Gap between Aerial Imaging and Terrestrial Data Capture

The Challenges of Drone Use in Facade Mapping
There have been rapid advancements in unmanned aerial systems over recent years, yet there is widespread consensus that we have still only seen a fraction of how unmanned aerial vehicles (UAVs or ‘drones’) could ultimately improve efficiency for geospatial professionals and their customers. To get a glimpse of the future, 'GIM International' spoke to Mark Nicolai, co-founder of industry start-up Aeroscan. Here, he shares his vision of how drones could form the missing link between aerial imaging and terrestrial data capture. According to independent research by the likes of PwC and Goldman Sachs, the construction industry tops the list in... (read more)
2019-03-20 10:24:53

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

Technical Advances Bring Digital Twin of Underground Infrastructure Closer

Mapping the underground is one of the major challenges in creating an infrastructure map at the municipal, regional, and national level, which is a key foundation for a national digital twin. Recent technical developments include: the ability to collect data at highway speeds that can be used to create a 3D model of underground infrastructure, software that can extract relevant 3D underground information from consumer digital photography, and video capture. Meanwhile, novel ways to share information about underground infrastructure, and progress on standards for sharing information about the subsurface are making mapping the underground increasingly feasible. The uncertainty in the... (read more)
2018-10-08 04:46:21

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

The Role of Surveyors in the Evolution of BIM

Building information modelling (BIM) is becoming more commonplace within construction sectors globally, combining technology with improved collaboration to better manage projects and give them the best chance of complying with time and budget constraints. However, the BIM life cycle and efforts to espouse it are almost futile if surveying is taken out of the equation or, more realistically, brought in too late. It can be good to have a structure that is successfully using BIM to be delivered on time and within budget, but if it or any of its components are in the wrong position the consequences can be... (read more)
2019-09-09 10:25:08

Powering the Future with Data and BIM - Digital Construction Week 2018

Digital Construction Week 2018 returned to Excel in October as an exhibition, with a main stage for paid conference sessions and several ‘theatres’ within the exhibition space. This article gives a taste of what was on offer over the two days. Real-time Asset Management The first day started with a 15-minute presentation from the Enable My team entitled ‘The Art of Raw Data’. This was all about using camera feeds from the front of trains to build up and maintain a real-time asset record. Apparently, cameras have been deployed for some time, but the data has not been used for... (read more)
2019-01-22 12:00:41

UAVs: Where to Focus on Next?

New Technologies Require New Knowledge and Regulations
In June 2018, RSPSoc's 'Photogrammetric Record' publication devoted 11 pages to determining which term they would use for drones. They ultimately decided on ‘unmanned aircraft system’ or ‘UAS’. However, the mere fact that this required 11 pages goes some way towards highlighting the complexity and cross-discipline potential that drones bring, not only to the remote sensing industry but also for multiple other uses, writes Peter Kinghan. Over the past decade we have seen a number of drone uses come through the tried-and-tested period, resulting in unmanned aerial vehicles (UAVs) becoming a proven technology for a range of industries and professions,... (read more)
2020-02-10 08:38:39

The Paperless Construction Site

Digitalization is changing the construction industry faster than expected. But will we ever see paperless construction sites? Digitalization is changing the construction industry faster than expected. Automation, additional sensors and the networking of machines make it possible to exploit optimization potential and noticeably increase productivity. However, despite innovative working methods and digitization, the road construction process is still mainly based on one medium: paper. Will we ever see paperless construction sites? Paper can be used for a wide variety of purposes and offers unlimited flexibility. Construction schedules, work schedules, work sheets, mix orders and requirement slips are still created manually... (read more)
2019-07-26 08:42:12

How SLAM Technology Can Support New-build Projects

Keeping up with Demand in a Rapid, Cost-Effective and Transparent Way
When it comes to new-build projects, there are numerous significant pressures on delivery, whether it’s keeping to a strict budget, completing on time or even keeping all stakeholders in the loop throughout the build itself. Here, David Fowkes, sales director from 3D mobile mapping specialists GeoSLAM, explores how simultaneous localization and mapping (SLAM) technology can contribute to streamlining the entire new-build process. As populations across the world continue to grow, demand for new-build housing is consequently on the rise. Our communities require affordable, fit-for-purpose and considerately designed homes that will stand the test of time, whether that’s for an ageing... (read more)
2020-04-30 10:41:49
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