Explaining the Background of i-Construction Adoption | Why the Ministry of Land, Infrastructure, Transport and Tourism Is Promoting Construction Reform

Table of Contents

• What is i-Construction

• The meaning of 2016 being designated the "inaugural year of the productivity revolution"

• i-Construction does not target construction work alone

• Background 1: Improving productivity was urgent

• Background 2: It was necessary to continue ensuring quality stably

• Background 3: It was necessary to support safety improvements through systems

• Background 4: It was necessary to keep sites running despite labor shortages

• The changes i-Construction aims for at construction sites

• Positioning in the DX Action Plan for the infrastructure sector

• What i-Construction 2.0 is trying to advance

• What automation of construction work means

• Why advanced data linkage is necessary

• What automation of construction management brings

• To continue high-quality infrastructure development and management with few people

• How to understand the background for i-Construction adoption

• Summary

What is i-Construction

What is important in this definition is that i-Construction is not merely a measure to introduce new technologies. It does not simply mean bringing equipment to construction sites or digitizing certain tasks. The primary focus is on reviewing the entire flow of construction, including the connections between each process, and creating a system for sustainable infrastructure development and management that raises productivity, quality, and safety.

If productivity does not increase sufficiently, more time and labor will be required to complete the same work. As labor shortages deepen, maintaining that state itself becomes difficult. If staffing is tight, burdens on quality checks and safety measures tend to increase. Conversely, if productivity alone is pursued while quality and safety are neglected, the reform cannot be considered adequate.

The idea of "creating a system that can be sustained" mentioned here is crucial. Construction and infrastructure work cannot be judged successful by temporary results alone. After completion, infrastructure must be managed, updated, and supported over a long period. Therefore, when considering the background for introducing i-Construction, it is essential to look beyond immediate labor-saving effects and consider whether sites can continue to function in the future.

The meaning of 2016 being designated the "inaugural year of the productivity revolution"

Designating a year as the "inaugural year" indicates not merely the start of a single measure but a turning point in mindset. In other words, there was recognition that relying solely on efforts at sites or piecemeal improvements was insufficient, and that systems, operations, and concepts of processes themselves needed to change.

Construction work features many consecutive processes and involves multiple stakeholders. Improving only one process tends to produce limited overall effects. Information obtained from surveys and measurements informs design, design is reflected in construction, construction results lead to inspection, and then to maintenance and renewal. If only a part of this flow is made more efficient while the surrounding processes remain unchanged, the overall improvement will be small.

That i-Construction was promoted starting in 2016 signifies a shift toward this whole-system optimization. Rather than partial improvements, the adoption of ICT across the entire construction process aimed to create changes worthy of being called a productivity revolution, and that is the weight behind its introduction.

i-Construction does not target construction work alone

This point is very important for understanding the background for introduction. The challenges at construction sites do not arise from construction work alone. There is room for improvement in how information obtained in earlier survey and measurement stages is handled, how information is organized at the design stage, how verification is conducted during inspections, and how records are used during maintenance and renewal. It is because these opportunities exist across processes that overall productivity improvement became necessary.

Even if ICT is introduced only in construction, if information handovers before and after are delayed or require reorganization, the benefits will be diluted. If efficiencies achieved on site are turned into rework or re-entry in other processes, the change will not constitute true reform.

Background 1: Improving productivity was urgent

In construction, many processes accumulate before a single deliverable is produced. If any one of survey/measurement, design, construction, inspection, or maintenance/renewal remains inefficient, it affects overall progress. When information is fragmented between processes, the same content is checked repeatedly, or handling differs by site, time and effort increase. Productivity improvement is not simply about increasing work speed; it is also about reducing such systemic waste.

i-Construction proposed increasing productivity by incorporating ICT into every process. The important point here is that ICT is positioned as a means for productivity improvement, not as the objective itself. The reason for introducing new systems at sites is not because they are new per se, but because they make it easier to carry out work with less burden and improve the overall flow of construction.

Background 2: It was necessary to continue ensuring quality stably

Quality assurance matters because the results of infrastructure development and management support society for a long time. It is not enough for work to be finished in the short term; infrastructure must continue to function reliably after completion. Therefore, the accuracy of information and tasks handled at each stage of construction and the certainty of verification are indispensable.

The fact that i-Construction incorporates ICT into all processes can be seen as a way to support quality assurance across the entire process. If the information obtained at the survey and measurement stage, its reflection in design, the content carried out during construction, the checks in inspection, and the information required for maintenance and renewal are connected, it becomes easier to maintain quality consistently. Conversely, if information is fragmented between processes, the same content may need to be checked repeatedly, and variances in decision-making can arise.

Quality is not something that can be guaranteed by the final inspection alone. What matters is how consistently information and work are connected from the first process to the last. The background for introducing i-Construction includes the idea of using ICT to support that consistency so that high-quality outcomes can be maintained even with fewer personnel.

Background 3: It was necessary to support safety improvements through systems

To improve safety, it is necessary not to concentrate the burden on people working hard at sites but to adopt a system-based approach that supports safety. By incorporating ICT into the entire process—from survey and measurement through maintenance and renewal—i-Construction aims to review site operations themselves. This is an approach that improves safety not on an ad hoc basis but by structuring the overall processes.

Also closely related to safety improvements is the aim to create a system that allows high-quality infrastructure development and management to continue safely even with fewer personnel. On sites with limited staff, individual burdens tend to increase, and there is often little slack for checks and adjustments. In such situations, protecting safety requires changing the way work is done.

Safety being part of the background for introducing i-Construction is not merely about reducing hazards; it reflects the need to create site systems in which safety can be maintained with limited personnel. The goal of construction reform is not only efficiency but also to lay the foundation that sustains safety.

Background 4: It was necessary to keep sites running despite labor shortages

If conventional methods are continued amid labor shortages, site burdens increase. When the workload remains the same but staff numbers decrease, the burden per person tends to rise and checks and adjustments take more time. As a result, productivity, quality, and safety are all likely to be affected. In other words, labor shortages are not only a problem of insufficient people but a problem that affects the sustainability of the entire construction sector.

To respond to this situation, i-Construction promoted ICT adoption across all processes. While judgments and tasks that only people can perform remain, the goal is to make sites easier to run with limited staff by reducing waste in how information is handled across processes and how work is conducted.

What is important here is that responding to labor shortages is not a theme separated from productivity or safety improvements. To support sites with fewer people, it is necessary to change workflows rather than rely on forcing or enduring extra burden. i-Construction was advanced precisely from that perspective as construction reform.

The changes i-Construction aims for at construction sites

At the center of these changes is the adoption of ICT across the entire construction process. By incorporating ICT in survey/measurement, design, construction, inspection, and maintenance/renewal, the expectation is that each process will shift from a fragmented state to a connected one. Better connections between processes make information handover easier and reduce duplicated checks and adjustments. This leads not only to productivity gains but also to more stable quality and safety.

Furthermore, the change i-Construction aims for is a shift from management that depends on individuals to management supported by systems. The intention is to review operations so they can succeed without assuming ample staffing, moving toward forms that work with few people. That direction aligns with the background of addressing labor shortages.

The term "construction reform" may sound abstract, but in i-Construction it can be summarized as strengthening connections across processes and transforming sites into places where quality and safety are easier to ensure even with limited staff. Understanding the background for introduction means understanding this necessity for change.

Positioning in the DX Action Plan for the infrastructure sector

i-Construction has been pursued since fiscal 2016 and is positioned as a core measure in the DX Action Plan for the infrastructure sector. What can be read from this is that i-Construction is not a temporary measure but is central to advancing digitalization in the infrastructure field.

Being positioned as a core measure carries significant meaning. It is not simply one of many measures but is treated as a central concept for promoting DX. This indicates that i-Construction is regarded as contributing not only to local improvements at construction sites but to a broader transformation of infrastructure development and management.

While the term DX is used broadly, what matters in relation to i-Construction is that digitalization is not the objective itself. The aim is to create a system in which high-quality infrastructure development and management can continue safely even with few people. To that end, it is required to review information and workflows across the entire process and transform them into a more sustainable form.

That i-Construction is placed at the core of the DX Action Plan for the infrastructure sector reflects the view that transforming construction sites leads to transformation across the entire infrastructure field. When understanding the background for introduction, it is important to view i-Construction not as an isolated measure but as a foundation supporting DX in the infrastructure sector.

What i-Construction 2.0 is trying to advance

i-Construction has been advanced since fiscal 2016, but its thinking has not stopped. i-Construction 2.0 sets out three pillars: automation of construction work, advanced data linkage, and automation of construction management.

What these three pillars indicate is a shift from merely introducing ICT to processes toward deeper and broader utilization. In the initial introduction phase, bringing ICT into each process itself was a major theme, but 2.0 takes a further step: it clarifies a direction to more fully automate ways of working and management and to strengthen data connections.

This reflects that the challenges behind i-Construction cannot be fully resolved by simple digitalization alone. To fully address productivity improvement, quality assurance, safety enhancement, and labor shortage responses, merely using digital devices individually on sites is insufficient. Only when data between processes are linked, management becomes smoother, and automation progresses where needed will it be possible to approach a sustainable system that operates with fewer people.

i-Construction 2.0 is not just an extension of i-Construction but a deepening intended to realize its goals more reliably. Understanding the direction of construction reform requires careful consideration of the meaning of these three pillars.

What automation of construction work means

One pillar of i-Construction 2.0 is automation of construction work. This term indicates a move toward greater automation in construction, the core stage of the construction process.

Construction is the stage where the results at sites take shape; it involves a large volume of work and tends to create heavy site burdens. Therefore, reviewing the construction stage is unavoidable when considering productivity, safety, and labor shortage responses. Placing automation of construction work as a pillar reflects that improving this stage has a large impact on the entire construction process.

Automation of construction work does not simply mean reducing human labor. Viewed against the goal of continuing high-quality work safely with few people, what matters is reducing burdens while maintaining both quality and safety. If parts of the process can be automated while leaving judgment and management that only people can do, the overall stability of site operations becomes easier to achieve.

That automation of construction work is a pillar in i-Construction 2.0 indicates that construction reform is moving more deeply into practical work. It should be understood as a change that addresses not only productivity but also quality assurance, safety, and labor shortage responses.

Why advanced data linkage is necessary

Another pillar of i-Construction 2.0 is advanced data linkage. This is a fundamentally important theme when considering the background for i-Construction. Because construction processes are connected, data must also be linked across processes for whole-system optimization to be achievable.

The flow of survey/measurement, design, construction, inspection, and maintenance/renewal is originally a single continuum. However, when information formats and handling differ by process, it becomes necessary to reorganize or repeatedly verify data at each handover. Such effort not only lowers productivity but also increases the verification burden related to quality and safety.

That is why advanced data linkage is a pillar of i-Construction 2.0. This is not merely for convenience but a necessary condition to make the entire construction flow smoother. If data connect more naturally, it becomes easier to utilize necessary information at each process and reduce the waste of handling the same content repeatedly. As a result, sites become easier to operate even with fewer people.

Advanced data linkage can be said to be the foundational support that strengthens the i-Construction concept. Since the core of construction reform lies in reviewing the entire process, strengthening data connections is not just a technical element but a condition of the reform itself.

What automation of construction management brings

The third pillar of i-Construction 2.0 is automation of construction management. The expansion of automation perspectives to include not only construction work but also the tasks of those who manage construction demonstrates i-Construction’s evolution.

Construction management plays an indispensable role in smoothly advancing site work. To maintain the balance of quality, safety, and progress, continuous checks, adjustments, and situational awareness are required. However, when such management burdens increase amid labor shortages, pressure tends to be pushed back onto the whole site.

Therefore, placing automation of construction management as a pillar carries significant meaning. Unless management approaches are also reviewed, it is difficult to create a system that truly runs with few people. If only construction work is automated while management burdens remain unchanged, the overall effect may be limited.

Automation of construction management contributes not only to productivity improvement but also to stabilizing quality assurance and safety enhancement. When management can be continued without strain, the quality of checks and decisions is easier to maintain. That i-Construction 2.0 treats this area as a pillar shows an intention to go beyond improving site work alone and to change management systems as well.

To continue high-quality infrastructure development and management with few people

First, the expression "with few people" reflects an attitude of creating realistic systems that assume labor shortages. Rather than expecting a return to previous staffing levels, the aim is to transform operations into forms that can be sustained within limited resources.

Second, the phrase "safely" indicates a policy that does not seek efficiency at all costs. If fewer people automatically lead to increased burden or risk, the reform has no meaning. That is why i-Construction introduces ICT across the entire process and, in 2.0, advances automation and advanced data linkage—to strengthen systems that support safety.

Finally, the point that the end goal is to "continue high-quality infrastructure development and management" is central. If quality declines, the purpose of development and management itself is weakened. If continuity is lacking, improvements remain temporary. i-Construction is an initiative aimed at achieving a state in which limited personnel can continue to support infrastructure while maintaining quality and safety.

Viewed this way, the background for introducing i-Construction is not a matter of simple technology adoption or site efficiency. It is a structural reform to enable construction and infrastructure management to function even in an era of limited personnel.

How to understand the background for i-Construction adoption

The direction is to move toward a system in which few people can continue to perform high-quality infrastructure development and management safely. Productivity improvement, quality assurance, safety enhancement, and responses to labor shortages are not independent issues but themes to be addressed together within a single reform.

In other words, i-Construction is not "an initiative to bring convenient technologies to sites." It is an effort to review work flows, information linkages, and management approaches so that construction sites can continue to function in the future. Therefore, when considering the background for introduction, it is necessary to understand not only efficiency but also quality, safety, and continuity.

Summary

The background for its introduction includes improving construction site productivity, ensuring quality, enhancing safety, and responding to labor shortages. At its core, i-Construction aims to build a system that allows high-quality infrastructure development and management to continue safely with few people while addressing these challenges simultaneously.

Furthermore, i-Construction is positioned as a core measure in the DX Action Plan for the infrastructure sector, and is treated not merely as a site improvement measure but as an axis supporting transformation across the entire infrastructure field. In addition, i-Construction 2.0 presents automation of construction work, advanced data linkage, and automation of construction management as pillars, indicating that the reform is moving deeper into practical operations.