8 Advantages and Disadvantages of i-Construction 2.0 | Things to Check Before Introduction

Table of Contents

• What is i-Construction 2.0?

• Advantage 1: Easier to design sites assuming reduced manpower

• Advantage 2: Easier to reduce hazardous work and movement burdens

• Advantage 3: Reduce rework by utilizing 3D data

• Advantage 4: Faster construction management and inspections

• Disadvantage 1: Heavy data preparation and operational design in the initial phase

• Disadvantage 2: The same effects are not achieved at every site

• Disadvantage 3: Personnel training and role changes are unavoidable

• Disadvantage 4: Dependent on communication environment and rule setting

• Decision criteria to check before introduction

• Summary

What is i-Construction 2.0?

Advantage 1: Easier to design sites assuming reduced manpower

At many sites until now, experienced workers often made decisions on the spot and kept things running by coordinating with paper, verbal instructions, or individual files. However, as labor shortages become more serious, that approach becomes more person-dependent, and processes can easily collapse the moment someone leaves. Assembling a site in line with the i-Construction 2.0 concept makes it easier to break down the sequence of measuring, recording, sharing, and deciding, and to turn it into reproducible operations. The benefit of introduction lies less in immediately achieving unmanned operations than in creating site workflows that can run with a small number of people. This ability to "design processes assuming reduced manpower" is especially valuable for companies that chronically struggle to secure skilled workers.

Advantage 2: Easier to reduce hazardous work and movement burdens

In practice, this effect is quite significant. For example, in situations where risk increases simply because people are present—slopes, underground work, work near heavy machinery, around heights, or on waterfronts—operations that do not assume constant on-site presence can lead to safety improvements. Furthermore, remote presence has been applied in principle to all directly managed civil engineering works since fiscal 2022, and systems have been put in place to allow items that used to require client personnel to go to the site for confirmation to be checked remotely. From the site side, waiting time for attendance, travel coordination, and follow-up organization of photos and documents tend to be reduced. Safety and efficiency are often considered separate, but i-Construction 2.0 offers room to improve both simultaneously.

Advantage 3: Reduce rework by utilizing 3D data

From site experience, much rework is caused not by a lack of information but by information not being connected. When plans, cross-sections, quantities, as-built data, photos, construction plans, and inspection documents exist separately, each time a revision occurs each person must update their own materials, and time is consumed simply confirming consistency. The automation of data linkage that i-Construction 2.0 aims for is precisely intended to reduce this waste. If a workflow becomes established in which quantities are calculated from 3D models, design data are used as-is for construction and estimating, and quality and as-built diagrams are automatically created from digital data, sites will be freed from much of the "work for the sake of work." This advantage is particularly large for projects that are prone to changes.

Advantage 4: Faster construction management and inspections

Disadvantage 1: Heavy data preparation and operational design in the initial phase

A common failure at sites is introducing measuring equipment and software first, then starting operations while file naming, coordinate management, how to assign attributes, photo organization, how to create inspection records, and who finalizes data at which point are still ambiguous. As a result, instead of reducing paper, both paper and data remain, and only the burden on staff increases. Although i-Construction 2.0 can be very effective, there are many things that must be designed in the initial phase, so if site preparation is insufficient it is easy to feel that "what was supposed to become convenient has only become more complicated." This is a typical pitfall that tends to occur in the first few sites.

Disadvantage 2: The same effects are not achieved at every site

This point is important to avoid excessive expectations before introduction. Tasks that are relatively easy to patternize, such as grading and earthwork, differ from tasks where surrounding conditions change significantly and judgment is difficult; the ease of automation and remote operations varies. Moreover, even if the main contractor is proactive, if the organizations of surveying, construction, fabrication, and inspection involved are fragmented, data linkage tends to stop midway. i-Construction 2.0 is not a panacea. It does not automatically enable reduced manpower on every site the moment it is introduced; a realistic approach is to start with tasks that are well-suited and expand horizontally where effects are seen. Rather than applying policy language directly to the site, you need to determine how far you can automate according to your company's project characteristics.

Disadvantage 3: Personnel training and role changes are unavoidable

From a company perspective, this change does not end with simply conducting training. You need to redesign within the organization who handles 3D data, who is responsible for the accuracy of site coordinates and as-built data, and who is in charge of client explanations and internal rollout. If only younger staff become digital leads, it becomes person-dependent, and if veterans cannot use the systems the site becomes segmented. In other words, the essence of personnel development is not operation training but redefining roles and changing how the entire site’s work is connected. This takes time, and in the short term training costs and coordination burdens increase. Underestimating this can result in the system not taking root and sites becoming polarized into those that use it and those that do not.

Disadvantage 4: Dependent on communication environment and rule setting

In practice, problems such as unstable communications interrupting video checks, files being too large to share, different data formats among subcontractors, ambiguity about which data are the official version, and unclear rules on data removal tend to occur. These issues are difficult to resolve through site staff effort alone and require arrangements up to company-level information management and agreements with clients. Introducing i-Construction 2.0 is both a technology introduction and an exercise in establishing operational control. If this is weak, a system that should make things convenient can instead increase confirmation work and exception handling at the site. Success depends not only on the quality of the technology but on whether you can prepare the foundational conditions.

Decision criteria to check before introduction

Summary

The advantages of i-Construction 2.0 include making it easier to design sites that can run with fewer people, the ability to target improvements in safety and movement burdens simultaneously, reducing rework by utilizing 3D data, and speeding up construction management and inspections. On the other hand, hurdles such as initial data preparation, variability of applicability among sites, personnel development, and communication and rule setting are also significant. Therefore, when deciding whether to introduce it, it is important to clarify "which tasks you want to ease" and "which processes you want to reduce manpower in" before considering "what to introduce." Although i-Construction 2.0 may look like a grand future vision, in reality it only moves forward through steady improvements in everyday surveying, recording, sharing, and verification.

In that sense, to advance site digitization it is important to keep the initial entry as light as possible. On sites that handle 3D data and positional information, the ease of subsequent data linkage depends greatly on whether an environment exists in which anyone can immediately obtain, record, and share high-precision positions. LRTK, an iPhone-mounted GNSS high-precision positioning device, is one means that makes the entry to i-Construction 2.0 practical for initial site measurements, as-built confirmation, collection of geotagged photos, and information sharing among stakeholders. Rather than preparing for a large-scale regulatory response, starting by lightening the site activities of measuring, recording, and communicating makes it easier to realistically integrate the benefits of i-Construction 2.0 into actual operations.