One of the
most comprehensive looks at the future of construction so far is a World
Economic Forum report called Shaping the
Future of Construction: A Breakthrough in Mindset and Technology, released in mid-2016. The report implicitly took a
technological systems approach by including companies across the construction
value chain and production system: suppliers of building materials, chemicals
and construction equipment; contractors; engineering, architecture and planning
firms; project owners and developers; academics; and leaders from government,
civil society, and industry organizations. The Boston Consulting Group was
involved, and over 60 people are cited as contributors so the report, while somewhat
bland with a lot of conventional wisdom about the industry reiterated, also
represents an industry consensus on what the near future might bring:
This report is the first publication of a multi-year project for guiding and supporting the Engineering and Construction industry during its current transformation. The report describes the industry’s present state, assesses relevant global trends and their impact on the industry, and devises an industry-transformation framework with key areas for development and action. It also features many best practices and case studies of innovative approaches or solutions, and offers a view – at different levels, such as at the company, industry and sector level – of how the future of construction might look.
To better
understand what might be involved in this transformation the WEF devised the
transformation framework in Figure 1. This provides an overview of expected
changes in the industry over the three levels of companies, sector and
government as twenty-first century technologies start to affect building and
construction. Some of these changes are really a continuation of existing
trends, such as internationalization and supply chain collaboration, or
existing issues like better relations with government. However, their pathway
from the present to the future for what they call ‘Technology, materials and
tools’ and ‘Processes and operations’ is particularly relevant.
There are no
explicit time frames given in the report, but the strong impression is that it’s
more about the short to medium term, say five years, than the longer term.
There are two reasons for this impression, apart from the fact that this is the
time frame many senior managers and politicians work around. Firstly, the
absence of dates of any sort in the discussion about the future of the industry
is striking, but not unexpected, in a report with so many authors, as dates
would be contentious for many technologies. Also, this report addresses few
specific new technologies, BIM is the exception, and does not make any
predictions.
Secondly, perennial issues such as recruitment and building codes
feature in this framework, and these have been ongoing issues for the industry
for decades. Changes is these areas are often very slow, and their underlying
drivers are well beyond the possibility of short-term reform and restructuring.
As they explain it this transformation "relies on the initiatives of individual companies – the adoption of new technologies and processes,
business-model innovation, refinements to the corporate culture and
organization, and so on. They also appeal for collective action by the industry as a whole and by governments in their dual role as
regulators and clients. These appeals have featured in every industry policy document
for the last 50 years.
The drivers
for change at the company level are not as restricted by institutional inertia,
or wider social trends such as demographics. The changes the WEF identified take
the use of advanced materials and manufacturing processes as their starting
point, and those changes lead inevitably to a more data intensive and digital
industry that develops semi-autonomous construction equipment and utilises data
analytics to maximise performance.
The report
does not make specific predictions about specific technologies, in fact
surprisingly few new technologies are discussed in the report. Instead, what
they do is provide a number of summary case studies that demonstrate where the
cutting edge of technology is, and then suggest that the rest of the industry
should be catching up to these leading firms over the next few years. The case
studies that demonstrate this ‘best practice’ are included in the company level
changes in Technology, materials and tools, and are in the Table below. Note
this is not a comprehensive overview of new technologies, these examples were
contributed by the companies that participated in the study, so there will be
many other examples from other major companies not included but known for
innovation, such as Bechtel, Vinci and Obayashi, or General Electric,
Pilkington and ABB. Nevertheless, it is a good starting point and shows what is
being done at the leading edge in the industry.
Shaping the
Future: Technology, materials and tools in 2016
Company
|
Example
|
Fluor (US)
|
has
built up an internal team of experts on concrete to advise the client at an
early planning stage, to develop a foundation of data based on experience and
to create a convincing business case for greater use of innovations (such as
50%-faster-curing concrete) in the market.
|
BASF and Arup (Europe)
|
have
jointly developed an app for architects, engineers and project owners to
calculate the energy savings achievable from the latent-heat storage system Micronal.
|
Skanska (Swedish)
|
has
developed a new construction concept known as “Flying Factories”, which are
temporary factories set up close to construction sites; they apply “lean”
manufacturing techniques and employ local semi-skilled labour. The advantages
include a reduction in construction time of up to 65%, a halving of labour
costs and a 44% improvement in productivity.
|
Broad Group (China) with ArcelorMittal (India)
|
is
using a system of modular building components that enables very speedy
construction: a 57-storey building was built in 19 days by moving 90% of the
construction work to the factory.
|
Komatsu (Japan)
|
is
developing automated bulldozers incorporating various digital systems.
Drones, 3D scanners and stereo cameras gather terrain data, which is then
transmitted to the bulldozers; these are equipped with intelligent
machine-control systems that enable them to carry out their work autonomously
and thereby speed up the pre-foundation work on construction sites, while
human operators monitor the process. On mining sites, autonomous haul trucks
are already in common use.
|
Win Sun (China)
|
has
been building 10 houses a day by using 3D-printed building components, and
has concluded a deal with the Egyptian government for 20,000 single-storey
dwellings leveraging this technology.
|
Skanska
|
and
its partners are pioneering the wireless monitoring of buildings, using
sensors to record data (such as temperature and vibration), and wireless
equipment to store and transmit this data. Data analytics are applied to
determine the implications of any changes in the sensor readings. These
smart-equipment technologies have the potential to reduce unexpected failure
by 50%, improve building-management productivity by 20-30% thanks to less
need for inspections, and improve the building’s energy performance by 10%
over its lifetime.
|
Atkins
|
has
implemented advanced parametric design techniques for detailed design
“optioneering” in the water infrastructure industry. That has made it
possible to provide 22 design options in one day, a 95% time improvement on
traditional design methods for similar results.
|
Arup
|
combines
various data-collection methods, including mobile surveys, security-camera
footage and traffic-flow reports, for improved decision-making in the design
of residential projects.
|
Skanska
|
is
developing a Tag & Tack system, pioneering the use of radio frequency
identification (RFID) tags and barcodes on products and components in
construction projects for real-time monitoring of delivery, storage and
installation, the new system is achieving reductions of up to 10% in
construction costs.
|
Based on
these examples, the level of technology use in construction, compared to
advanced manufacturing techniques in 2016, is well behind. Companies in the
aerospace or automotive industries have developed their automated factories,
integration capabilities and use of new materials like carbon fibre. Adidas
makes 300 million shoes a year and in 2017 opened a fully automated factory in
Germany. There are many examples. The lag is primarily due to the dynamic of a
project-based industry, where it is hard for contractors and consultants to
spread costs incurred with innovation across projects. Consequently, the
manufacturers and suppliers of building and construction products, machinery
and equipment do most of the research and innovation because they, like car
companies, can spread the development costs over many clients. The role of contractors
is to seek efficiencies in delivery, as the examples show. What these examples
also show is that the gap between the industry’s larger, leading edge firms and SMEs is
growing, and can be expected to increase because the great majority of smaller
firms cannot innovate as fast or as effectively as larger firms.