i-Constructionの定義を国土交通省資料で確認｜初心者向け入門ガイド

目次

• First, organize what i-Construction is

• The definition of i-Construction lies in productivity improvement measures

• i-Construction is not a term that refers only to construction work

• Introducing a single machine alone does not represent the whole of i-Construction

• Meaning that it includes everything from surveys and measurements to maintenance and renewal

• Difference between ICT construction and i-Construction

• Why i-Construction is needed

• Relationship between productivity improvement and quality assurance

• Relationship between safety improvement and responses to labor shortages

• What does creating a sustainable system with a small workforce mean

• Key points to note in i-Construction 2.0

• How beginners should view i-Construction when trying to understand it

• Summary

i-Constructionとは何かを最初に整理する

Put simply for beginners, i-Construction is not an idea that changes only a part of the work involved in construction or infrastructure. It is a way of thinking that aims to improve productivity overall while looking across the whole process: starting with initial surveys and measurements, through design and construction, and onward to inspections, maintenance, and renewal. In other words, a major characteristic is that it targets the entire flow rather than only a portion of the process.

A common misunderstanding when interpreting the term i-Construction is to think it simply means “making construction a little more convenient.” However, the fact memo clearly states that i-Construction does not refer only to the construction phase or to the introduction of a single machine. This is an important point for beginners to understand from the outset. In other words, while i-Construction includes the topic of construction, it is not solely about construction. Viewing the whole picture is the entrance to understanding the definition.

Also, the fact that i-Construction has been promoted continuously indicates that the underlying issues are not temporary. The fact memo organizes the background as productivity improvement, quality assurance, safety improvement, and responses to labor shortages. These are not problems limited to a single site or a single period. That is why i-Construction is positioned as a long-term policy to be promoted.

Moreover, since this is a continuously promoted policy, its content is not limited to a single phase. The breadth that includes surveys and measurements, design, construction, inspection, and maintenance and renewal expresses an intention to review the entire flow rather than implement a one-off improvement. Seeing this continuity and breadth together makes it easier to organize i-Construction as not “a matter of making part of a site convenient” but “a matter of improving the overall approach to carrying out construction and infrastructure works.”

i-Constructionの定義は生産性向上施策という点にある

When considering the definition of i-Construction, one of the most important terms is “productivity improvement measures.” The fact memo indicates that i-Construction is a productivity improvement measure that includes surveys and measurements, design, construction, inspection, and maintenance and renewal. In other words, productivity improvement is at the core of i-Construction.

What should be noted here is not to understand “productivity improvement” simply as “making things faster.” Of course it means making workflows better, but the fact memo also lists quality assurance, safety improvement, and responses to labor shortages as background factors. Therefore, the productivity improvement aimed at by i-Construction is not merely increasing speed; it is deeply connected to creating a form that can be sustained with limited personnel while taking quality and safety into account.

For beginners, i-Construction’s productivity improvement is not “just finishing faster.” It is closer to the idea of connecting the whole flow from surveys and measurements to maintenance and renewal without forcing it, aiming for a state that can be carried out safely and with high quality by a small workforce. Seeing it this way broadens the meaning of productivity improvement somewhat.

Also, the point that it is a productivity improvement measure is important for understanding the scope of i-Construction. If it were only improvements in construction, it would be sufficient to regard it as a construction efficiency measure. However, i-Construction targets surveys and measurements through maintenance and renewal. This suggests the view that improving a single phase does not easily lead to overall productivity improvement. As long as prior and subsequent phases are connected, you must look at the whole to truly achieve productivity improvement.

i-Constructionは施工だけを指す言葉ではない

One of the points newcomers are most likely to misunderstand about i-Construction is to assume it refers to “construction work.” Certainly, construction is an important component of i-Construction. However, the fact memo explicitly states that i-Construction does not refer only to the construction phase. Whether you can correctly understand this will greatly change how you see the overall picture of i-Construction.

If you only look at construction, i-Construction appears to be limited to improving on-site construction methods. In reality, however, it is a measure that includes surveys and measurements, design, construction, inspection, and maintenance and renewal. In other words, construction is only one part of the flow. Important processes exist before construction and after construction as well. The meaning of i-Construction lies in treating these before-and-after phases as a single connected flow rather than separating them.

To make it easy for beginners to understand: improving construction alone does not necessarily make the whole better. Without continuity with the prior phases, the burden at the site may increase; if the connection with subsequent phases is weak, inspections and maintenance and renewal may become problematic. That is why i-Construction emphasizes a perspective that looks at the whole, not just construction.

Also, understanding that “it is not just construction” becomes the foundation for understanding the difference between i-Construction and ICT construction. The fact memo indicates that ICT construction is regarded as part of i-Construction, but the whole of i-Construction is broader. This difference becomes harder to understand if you only look at construction. If you first understand that i-Construction is not limited to construction, it becomes easier to organize the relationship with ICT construction naturally.

In short, when learning i-Construction, it is easier to remember it as “it includes construction but is not only construction.” Just grasping this phrase helps prevent the common misunderstanding of i-Construction as merely a matter of introducing on-site technologies.

単独の機械導入だけではi-Constructionの全体像にならない

Another common misunderstanding is to take i-Construction as meaning “bringing in new machines.” However, the fact memo clarifies that i-Construction does not refer only to the introduction of a single machine. This point is especially important for beginners because the more attention is drawn to visible machines, the more easily one departs from the original definition.

Of course, this does not deny the importance of machines on construction and infrastructure sites. However, the definition of i-Construction lies not in whether a particular piece of equipment was introduced but in “how the overall flow is viewed as a productivity improvement measure that includes surveys and measurements through maintenance and renewal.” Therefore, you cannot explain the whole of i-Construction by the introduction of a single machine.

For beginners, put another way: i-Construction is closer to a mindset than to the name of a tool. No matter how convenient a machine is, that alone does not connect the entire flow from surveys and measurements to maintenance and renewal. What i-Construction emphasizes is not an improvement that can be completed at one point in the process, but thinking about work in a way that leads to overall productivity improvement.

調査・測量から維持管理・更新までを含む意味

The fact memo indicates that i-Construction includes surveys and measurements, design, construction, inspection, and maintenance and renewal. This breadth is a major key to understanding the definition of i-Construction. For beginners, grasping this idea of “including everything from start to finish” is the shortest route to understanding i-Construction.

First, surveys and measurements are the starting point of the work. Next comes design, followed by construction, inspection, and maintenance and renewal. What is important here is that these phases do not exist separately but are, in principle, a connected series of flows. i-Construction targets improving productivity across that entire flow. That is why it is insufficient to extract and understand only construction.

This breadth is also linked to the idea of improving productivity. Even if one phase improves, if connections with other phases are poor, the whole will not necessarily succeed. It is important that what is obtained in surveys and measurements, what is organized in design, what is carried out in construction, what is checked in inspection, and what is used in maintenance and renewal are connected as a whole. i-Construction includes all phases in order not to lose sight of this whole connection.

Beginners do not need to try to memorize all the technical content of each phase when learning i-Construction. First, firmly grasp the overall picture of “including everything from initial surveys and measurements through subsequent maintenance and renewal.” With this understanding, it becomes natural to see i-Construction not as a new construction method but as a productivity improvement measure that covers the whole process.

ICT施工とi-Constructionの違い

One phrase easily confused when learning i-Construction is ICT construction. According to the fact memo, ICT construction is regarded as part of i-Construction, but the whole of i-Construction is broader. Understanding this relationship makes the definition of i-Construction clearer.

First, it is important not to separate ICT construction from i-Construction too much. The fact memo states that ICT construction is regarded as part of i-Construction. In other words, ICT construction is included within i-Construction. However, just because it is included does not mean ICT construction alone can explain the whole of i-Construction. This is the difference between the two.

For beginners, a clear way to put it is that ICT construction is closer to one domain within i-Construction. i-Construction, on the other hand, is broader and is a productivity improvement measure that includes surveys and measurements through maintenance and renewal. Therefore, understanding ICT construction helps in understanding i-Construction, but by itself it does not reach the whole picture.

This difference is important so that one does not misunderstand i-Construction as just the construction phase. If you equate i-Construction and ICT construction, your perspective will tend to focus on construction. But as the fact memo shows, the whole of i-Construction is broader. Its feature is that it considers the phases before and after construction as well.

For beginners, what matters is not to deny or downplay ICT construction but to know its correct position. ICT construction is part of i-Construction, and i-Construction is a broader framework that includes it. Just by understanding this relationship, the definition of i-Construction becomes much clearer.

なぜi-Constructionが必要とされているのか

To understand the definition of i-Construction, it is also necessary to grasp why it is needed. The fact memo shows that the background includes productivity improvement, quality assurance, safety improvement, and responses to labor shortages. These four background factors are indispensable when considering the purpose of i-Construction.

First, the fact that productivity improvement is in the background is directly connected to the definition of i-Construction itself. Since i-Construction is a productivity improvement measure, it is natural that productivity improvement is the background. But what is important here is that this productivity improvement is considered for the entire flow from surveys and measurements to maintenance and renewal. It is not enough for just one phase to be faster; it is important that the whole can proceed in a sustainable way.

Next is quality assurance. When productivity improvement is mentioned, quantity and speed are often imagined first, but the fact memo also includes quality assurance as background. In other words, i-Construction is not a measure that sacrifices quality for efficiency. Rather, it is conceived as increasing productivity while ensuring quality. This point is important so that beginners do not assume “efficiency” and “quality” are opposites.

Furthermore, safety improvement is one of the background factors. Safety is a fundamental consideration in construction and infrastructure. i-Construction incorporates safety improvement into the overall measures. Therefore, the goal is not simply to speed up work or reduce personnel; proceeding safely is a prerequisite.

And then there is responding to labor shortages. This carries particularly heavy meaning among the reasons i-Construction is needed. Facing labor shortages, the conventional staffing structure makes it difficult to sustain infrastructure construction and management. That is why creating a system that allows safe and high-quality work with a small workforce is required. i-Construction can be understood as a policy to respond to these backgrounds.

In short, i-Construction is needed not simply because people want to try new things. It is needed because multiple challenges—productivity, quality, safety, and labor shortages—must be addressed simultaneously to make construction and infrastructure works sustainable. Knowing this background makes i-Construction’s definition appear not merely as an explanatory phrase but as an answer to these problems.

生産性向上と品質確保の関係

When understanding i-Construction, it is very important to consider how “productivity improvement” and “quality assurance” are connected. Beginners may feel that improving efficiency and preserving quality are separate matters. However, the fact memo lists these two together as background. This means that in i-Construction they have an inseparable relationship.

If one seeks only productivity improvement while neglecting quality, the very meaning of infrastructure construction and management is weakened. Conversely, focusing only on quality assurance and letting the entire flow stall makes it hard to achieve a sustainable system. That i-Construction is a productivity improvement measure while including quality assurance as a background indicates that the two must be considered together.

For beginners, i-Construction is not a measure that asks you to choose between “fast” and “thorough.” It is a measure that aims to enable solid work to proceed without undue strain while reviewing the overall flow. The definition that includes surveys and measurements, design, construction, inspection, and maintenance and renewal supports this idea. Rather than trying hard in a single phase, it seeks to align the whole flow to achieve both productivity improvement and quality assurance.

Therefore, productivity improvement in i-Construction is not a concept opposing quality assurance; it is, rather, an idea to make quality sustainable. If beginners grasp this, they are less likely to mistake i-Construction for a simple efficiency drive.

安全性向上と人手不足対応の関係

Safety improvement and responses to labor shortages are among the backgrounds of i-Construction. Although these two may seem like separate challenges, the content of the fact memo shows they are closely connected. The idea that aims to build a system that can sustain safe and high-quality infrastructure construction and management with a small workforce captures this relationship well.

When labor shortages progress, the need to operate with fewer people increases. What matters here is not simply the reduction in personnel but whether work can continue while maintaining safety and quality in that condition. If safety is compromised as a result of fewer people, the system cannot be considered sustainable. That is why responses to labor shortages and safety improvement must be considered together.

Put another way for beginners, i-Construction is not just about “doing something because there are fewer people.” It includes the idea of “making it possible to continue safely even with fewer people,” and only then does it approach the purpose of i-Construction. This point is crucial to distinguish i-Construction from mere labor-saving measures.

Also, it is easier to understand safety improvement when viewed within the framework of the whole system rather than merely as strengthening caution. Because i-Construction includes surveys and measurements through maintenance and renewal, safety is not something achieved in a single phase. A well-aligned overall flow that allows progress without overburdening a small workforce forms the foundation for safety improvement.

Beginners should avoid understanding i-Construction as a simple formula of “reduce personnel then optimize.” The correct understanding is “respond to labor shortages while creating a system that can continue safely and with high quality.” With this understanding, the definition and purpose of i-Construction become clearer.

少人数でも持続できる体制づくりとは何か

First, the phrase “even with a small workforce” directly reflects the background of responding to labor shortages. But what really deserves attention is not only that point. The continuation “safe and high-quality infrastructure construction and management” shows the contours of what i-Construction aims for. In other words, the goal is not merely to make operations run with fewer people; it is to build a system that can continue long-term while protecting safety and quality.

For beginners, an easy way to understand this is that i-Construction is not a mechanism for temporarily lightening work. It is not a makeshift solution but a policy intended to create a form that can continue in the future. The word “sustainable” here is very important. Short-term gains in efficiency and long-term stable continuity are not the same.

Also noteworthy is that it covers both “infrastructure construction and management.” Because it considers not only building but also subsequent management, the expression “creating a sustainable system” fits well. This aligns with i-Construction being a measure that covers surveys and measurements through maintenance and renewal. In other words, thinking in a connected form from start to finish is a prerequisite for building a sustainable system.

If you fully understand this sentence, i-Construction’s purpose becomes quite clear. When beginners memorize the definition, it helps to center on this idea: i-Construction is a productivity improvement measure that reviews the whole from surveys and measurements to maintenance and renewal so that infrastructure construction and management can be sustained safely and with high quality even with a small workforce.

i-Construction 2.0で押さえるべきポイント

The fact memo indicates that i-Construction 2.0 has pillars of construction automation, advanced data linkage, and construction management automation. For beginners this may sound a little difficult, but again the important thing is not to memorize the individual words in detail but to grasp the overall direction.

First, construction automation is included as a pillar. This can be understood as strengthening the direction toward enabling important phases like construction to proceed safely and with high quality even with a small workforce. Even though i-Construction originally does not mean only the construction phase, construction remains an important phase. Automation of construction is therefore one of the pillars concerning how to carry out construction.

Next is the advancement of data linkage. Since i-Construction covers surveys and measurements through maintenance and renewal and assumes that the phases are connected, making data linkage more advanced as a pillar emphasizes connections between phases. For beginners, this means moving away from doing things separately and toward thinking in a connected whole.

Furthermore, construction management automation is also a pillar. The notable point here is that it targets not only the work itself but also the management of construction. Remembering that i-Construction does not refer only to the introduction of a single machine makes this clearer. i-Construction 2.0’s feature is that it considers not only the tasks but also how those tasks are managed.

Summarized for beginners, i-Construction 2.0 is a stage that clearly emphasizes enabling construction, data connections, and construction management to be sustained safely and with high quality even with a small workforce. Considering that original i-Construction is a productivity improvement measure covering surveys and measurements through maintenance and renewal, i-Construction 2.0 can be understood as advancing that thinking further.

Beginners do not need to feel daunted by the term i-Construction 2.0. It is sufficient to note that three pillars—construction automation, advanced data linkage, and construction management automation—are presented and that these connect to the major goal of building a system that can be sustained safely and with high quality even with fewer people.

初心者がi-Constructionを理解するときの見方

People learning i-Construction for the first time are often bewildered by the number of technical terms. However, even by organizing the definition within the range of the fact memo, the axes for understanding are clear. When it feels difficult, narrow down the points to look at.

Second, i-Construction is a productivity improvement measure that includes surveys and measurements, design, construction, inspection, and maintenance and renewal. Understanding this breadth is the starting point to grasp the whole. Being aware that it is not only construction will significantly advance your understanding.

Third, i-Construction does not refer only to the construction phase or to the introduction of a single machine. This is a part beginners particularly tend to misunderstand, so it should be strongly kept in mind. Do not judge it only by prominent machines or construction talk.

Fourth, ICT construction is part of i-Construction, and the whole of i-Construction is broader. If you can organize this, the positions of related terms will become easier to understand.

Fifth, the background includes productivity improvement, quality assurance, safety improvement, and responses to labor shortages. In other words, i-Construction is a policy that addresses multiple issues simultaneously rather than answering a single problem.

Seventh, in i-Construction 2.0, construction automation, advanced data linkage, and construction management automation are set as pillars. This helps you grasp in which direction i-Construction is heading.

まとめ

i-Construction does not refer only to the construction phase. Nor does it mean only the introduction of a single machine. These are the points where beginners most easily stumble at first. Paying attention only to visible construction or machines moves you away from the true definition of i-Construction. i-Construction must be understood as a measure that aims to improve productivity while looking across the whole flow.

Also, ICT construction is regarded as part of i-Construction, but the whole of i-Construction is broader. Knowing this relationship makes it easier to sort out similar terms. It is important to understand that ICT construction is included but not the whole.

And in i-Construction 2.0, construction automation, advanced data linkage, and construction management automation are pillars. This can be understood as taking the original idea of i-Construction further and clarifying the aim of building a system that can be sustained safely and with high quality even with a small workforce.