4 Steps to Start Using AR for Drawings｜How to Streamline On-Site Sharing

Table of Contents

• What is using AR with drawings

• Why using AR with drawings is gaining attention for on-site sharing

• Step 1 Clarify the purpose of implementation and what you want to share

• Step 2 Organize the drawing information and standards used on site

• Step 3 Start with small confirmation tasks

• Step 4 Create a workflow for recording and updating and make it standard practice

• Common mistakes when using AR with drawings

• Approaches to embedding AR use for drawings on site

• How to further connect AR use for drawings to practical operations

What is the use of AR for drawings?

Utilizing AR with drawings means overlaying floor plans, site layouts, elevations, sections, and simple three-dimensional information onto the actual site scenery and the appearance of existing structures to verify them and speed up on-site understanding and decision-making. Unlike simply viewing drawings on a device, it is characterized by making it easy, relative to where you are standing, to grasp on the spot what will be placed where, which positional relationships are correct, and where attention should be paid.

When working with drawings on site, many people unconsciously perform two tasks at the same time. One is reading the drawing itself. The other is mentally translating the lines, dimensions, and notes on the drawing into the physical space on site. Experienced personnel can carry out this translation relatively quickly, but on sites with many existing installations or complex structures, the number of back-and-forth verifications inevitably increases. This is because the cycle of looking at the drawing, looking at the site, returning to the drawing, and checking again on site is repeated.

As the number of these back-and-forth exchanges increases, the handover of information tends to become more dependent on individuals. Design staff emphasize the consistency of drawings, construction staff emphasize ease of work, and management may emphasize maintenance and safety. Even when looking at the same drawings, the points they focus on differ slightly, so what seemed understood in the conference room can be interpreted differently on site. Using AR for drawings is an effective way to reduce this gap. Because it allows people to discuss while looking at the same object on site, it becomes easier to share what criteria they are using to check.

Also, using AR with drawings does not require an elaborate three-dimensional model to be viable. In practice, it can be perfectly valuable to overlay only the necessary information on site—grid lines, reference lines, outlines, key dimensions, and the locations of equipment or structures you want to verify. On site, creating a state that makes the immediate decisions easier is more important than showing everything as a 3D object. The drawing information you use will vary depending on whether you want to speed up position checks, check coordination with existing installations, or make explanations to stakeholders easier to understand.

Furthermore, the use of AR with drawings is not limited to new construction. It can be widely applied in any situation where you want to connect drawings and the site, such as renovation work, replacement of existing equipment, temporary planning, pre-construction checks, meetings, change comparisons, and developing approaches for as-built verification. Much of the confusion on site arises not from a lack of information, but from information not translating into on-site understanding. Therefore, it is closer to the reality to regard the use of drawing AR not as a new technology but as a practical method for making the meaning of drawings easier to use on site.

Many practitioners who search for "図面 AR 現場" are not doing so out of mere curiosity; they typically have the problem-awareness that they want to make on-site information sharing a little faster and more accurate. It's common to face issues such as finding it hard to determine positions on site from drawings, spending a lot of time on explanations, repeatedly going back to compare with existing installations, or having understanding drift when personnel change. The use of drawing AR is a very good fit for addressing those problems. However, introducing it does not automatically make things work well—if you start the wrong way it won't become established on site. In the next chapter, we will clarify why the use of drawing AR is gaining attention for on-site information sharing, and then look in detail at four steps for getting started.

Why Using AR for Drawings Is Gaining Attention for On-Site Information Sharing

The reason why applying AR to drawings is gaining attention for on-site sharing is that it can readily reduce the burden between reading drawings and understanding the actual site. At a worksite, simply having drawings is not enough. Workers need to be able to judge on the spot things like what will be located where, how the spacing relates to existing structures, where work is likely to bottleneck during construction, and how it will look after completion. However, with drawings alone, it is not easy for everyone to share the same spatial understanding.

Especially on sites with many existing installations or on renovation projects, the burden of translating what the drawings mean into the field becomes significant. In situations where equipment is intricate, passageways are narrow, there are interfaces with other trades, or temporary conditions are complex, correct dimensions on the drawings alone are not enough. Only when standing on site can you perceive proximity, a sense of confinement, the severity of working-space constraints, and visual incongruities. Using AR with drawings makes it easier to link this on-site sense to the drawing information, making it easier to spot potential problems before construction.

Furthermore, differences in understanding among stakeholders on site cause significant losses. Designers focus on the consistency of drawings, construction staff focus on sequencing and how work is carried out, and management often emphasizes maintenance and safety checks. Although no one is wrong, because each is looking at slightly different things it takes time for conversations to align. When you can use drawing AR to view the same object on site, it becomes easier to share what you are talking about, and the level of detail in meetings increases.

Another reason it attracts attention is its strong ability to handle changes. On site, changes may be required to respond to construction conditions or the state of existing installations. In such cases, trying to understand the on-site impact from only the differences shown on drawings takes time. That’s because you have to mentally translate where and how things have changed and what they will affect on site. By using AR to overlay the updated information on the site, it becomes easier to confirm the changes and grasp the scope of their impact. This is a very significant advantage on sites that tend to stop work whenever changes occur.

Additionally, it is important that differences in experience can be bridged easily. Even if those accustomed to reading drawings can understand without issue, for people entering the site for the first time or representatives from partner companies, it can be difficult to grasp the overall picture from just plans and sections. With AR for drawings, at the very least it becomes easier to share where things will be located and which areas should be focused on, so comprehension ramps up faster. This is also significant for training and handovers.

In short, the reason the use of AR for drawings is drawing attention is not because it is novel as the latest technology. It is a practical means of reducing on-site delays in verification, differences in perception, the burden of understanding changes, and instability caused by differences in experience. However, to realize its benefits, there are checks that should be confirmed before implementation. From the next chapter, we will organize how to get started in four steps to make on-site sharing smoother.

Step 1 Clarify the purpose of the introduction and what you want to share

The first thing to do when starting to use AR for drawings is to clarify the purpose of implementation and the target audience you want to share it with. If that remains vague, you'll end up aiming for a system that can show anything, and as a result people on-site won't know what it's for. Even if it seems convenient, if the use cases aren't clear it won't take hold in the busy workflow on-site. That's precisely why you need to put into concrete words what you want to improve first.

For example, whether you want to make pre-construction location checks easier, speed up coordination checks with existing conditions, reduce misunderstandings during meetings, or make comparisons of changes clearer will greatly affect which drawings you use and how you present them. If the goal is position confirmation, it is important that reference lines and primary dimensions are easy to read; if it is coordination checking, it is important that the sense of distance to existing elements is easy to understand. For meeting purposes, it is important that the post-completion appearance and the impression of the space are easy to share. When the purpose changes, the displays that are valuable change as well.

It's also important to narrow down what you want to share. Rather than showing the entire site at once, it's more practical on-site to limit the subject to, for example, the equipment that is currently causing a problem, the area that needs to be checked now, or the structures involved in the current work. If it's clear what you want to share, you can reduce unnecessary information so viewers' attention is less likely to wander. This, in turn, leads to faster location confirmation and quicker meetings.

Furthermore, when determining the purpose, it is necessary to include the perspective not only of those who create the drawings but also of those who will actually check them on site. A way of using them that the design team thinks is convenient may contain too much information for the field staff. Conversely, there may be information that the field needs but that does not stand out on the drawings. By incorporating the users’ perspective, you can make it less likely that the drawings will go unused on site after implementation.

When the purpose of implementation and the stakeholders you want to share it with become clear, subsequent preparations become much easier. This is because you can see which drawings to use, which information to retain, what reference point to use for display, and in which situations it will be used. To make AR for drawings successful on-site, it is paramount to define at the outset why you are doing it as specific business tasks.

Step 2 Organize the drawing information and standards used on site

The second step is to organize the drawing information and reference points used on site. Drawings for design and drafting contain a lot of information. That information is necessary, but when used for AR display on site, left as-is it can be too much and make it hard to know where to look. To make sharing on site smooth, it is important that the necessary information is immediately identifiable and that the reference position is clear.

For drawings used on site, the information that should be prioritized includes grid lines, reference lines, key dimensions, outlines, the locations of equipment or structures to be verified, and the relationship to existing installations. If the purpose is position confirmation, it can be better to suppress notes and auxiliary lines that are not directly related to position. If the purpose is comparison with existing installations, it is important to make the relationship with surrounding equipment and passageways clear. In other words, rather than increasing the amount of information on the drawing, it is necessary to organize the presentation to suit the purpose.

Also, organizing the reference points is essential. If you haven't decided which position will serve as the on-site reference or which lines or points should be aligned, the appearance will change each time it's displayed. It is important to choose references that are easy to locate on site and that anyone will interpret the same way, such as building corners, ends of existing structures, or known lines on the floor. Priority should be given to references that can be reproduced on site rather than those that are convenient on the drawings.

Furthermore, drawing information and reference standards need to be organized together. Even if the standards have been decided, they are meaningless if they are hard to locate within the drawings. Conversely, even if the drawings are neatly organized, they are difficult to use on site if the standards are not clear there. If ease of use in the field is a priority, these two must be arranged simultaneously. If it is clear where to look in the drawings to find the standards, the initiation of verification will be considerably faster.

A key point in this step is not to treat office drawings and on-site drawings as if they are the same. While having comprehensive information is convenient in the office, on-site it is more valuable to have the items to be checked clearly identified. Organizing the drawing information and standards for on-site use is not about making the display look tidy, but about creating conditions where decisions can be made on-site without hesitation. Once this is in place, the use of AR with drawings becomes considerably more practical.

Step 3: Start operations with small verification tasks

The third step is to start operations with small confirmation tasks. Because the use of AR for drawings has wide potential, you may be tempted to roll it out to all sites and all processes from the outset. However, if you launch on a large scale immediately, preparations become complicated and it becomes harder for people on site to see what has actually become more convenient. For that reason, it’s important to first try it on small confirmation tasks where the effects are easy to see.

Easy places to start are pre-construction position checks, checks of interfaces with existing structures, and parts of on-site meetings. These involve a lot of back-and-forth between drawings and the site and tend to take time to verify, so they are situations where using AR with drawings can be particularly effective. In particular, locations where the same explanations are repeated each time or where differences in on-site understanding tend to arise are well suited to small-scale trials. Starting where the site can readily perceive the value makes it easier to expand the approach afterward.

Also, starting small makes it easier to uncover where things are hard to use. Issues such as unclear standards, too much drawing information, an order that doesn't match how you want to view things, or concerns about differences from the current situation won't become apparent until you actually use the system. These discomforts are not failures but clues for moving toward operations that suit the site. By trying it in small verification tasks, you can collect those clues efficiently.

Furthermore, starting small makes it easier to clarify stakeholders' roles. This is because you can decide, by trying things out within a limited scope, the flow of who will align the standards, who will compare against existing installations, and who will record the results. If you start operating at large scale right away, role allocation tends to remain unclear, and as a result it often becomes a situation where no one can use it effectively.

Starting with small verification tasks does not mean you are being too cautious about adoption. On the contrary, it is the quickest way to find a form that genuinely works on-site. If you want to turn drawing-based AR into a system that supports field sharing, start with a narrowly focused but visibly valuable use case, and gradually expand the insights you gain there.

Step 4 Create and Embed a Recording and Updating Workflow

The fourth step is to create and embed a process for recording and updating. If the use of AR with drawings is set up so that it only involves looking on site and then stopping, it tends to remain a one-off convenience feature. Only when there is a flow that links where things felt off on site, which locations were prioritized for inspection, and what corrections became necessary to the next drawing and subsequent checks will the system be sustainable in practical use.

First and foremost, it is important to record what you observed on site. If you have organized which reference was used, where positions were difficult to determine, and which comparisons with existing installations felt inconsistent, you can avoid repeating the same discussions in future checks and meetings. This is not a mere memo, but information for accumulating on-site judgments.

Next, there needs to be a process to feed those records back into drawings and related documentation. If on-site fine adjustments, ambiguities in the display, or discrepancies with existing conditions are not reflected in the official information, the next person in charge will begin checking again based on the same assumptions. In that case, using AR on drawings only makes each individual check slightly easier and does not lead to overall efficiency gains. Having an update workflow allows on-site knowledge to accumulate and makes the system stronger with each use.

Also, having a flow for recording and updating speeds up responses to changes. If you can see what changed when and which comparison results are reflected, it becomes easier to explain the before-and-after of a change. On site, it often takes more time to understand a change than to make the change itself. Being able to shorten this time to understand is also a major value in establishing the use of drawing AR.

When you talk about creating a process for recording and updating, it might feel like administrative work will increase. In reality, however, it’s a mechanism to avoid repeating the same explanations and checks on site. If you truly want to leverage AR for drawings to support on-site sharing, it’s essential to create a way for the observed results to be preserved for the next steps. With that in place, the more you use it, the more the workflow will develop to fit the site.

Approach to Establishing On-site Use of AR for Drawings

To establish the use of drawing-based AR on site, it's important not to roll it out too widely from the start. New systems can easily seem applicable to many tasks, but if you expand them to the entire process from the outset, preparation and explanations become complicated, and on-site staff can easily become unsure when to use them. Start with situations that involve frequent back-and-forth confirmations, where differences in perception are likely to arise, or where comparison with existing installations is difficult—areas where the benefits are easy to see.

Also, it is important to treat usability issues raised by on-site teams as material for improvement. Complaints such as “there is too much drawing information,” “the standards are hard to understand,” “the viewing order is different from what I want,” and “it’s difficult to compare with existing installations” are not signs that the site is rejecting the system, but signals that they want it organized in a way that better fits their work. The more a site can capture these points and improve operations accordingly, the longer the use of AR for drawings will be sustained.

Furthermore, it is essential to make clear who benefits and how. For construction management, there is the advantage of reducing the time required for explanations and confirmations; for on-site staff, the advantage of faster comprehension of positions; and for designers, the advantage of easier recognition of differences from current conditions. When these values are shared, the entire site becomes more inclined to use the system positively. A mechanism that is convenient for only a few people will not take root across the whole site.

When aiming for sustained adoption, the most important thing is not to make the use of AR for drawings a special event. By designing it so that it naturally fits into everyday verification tasks—pre-construction checks, comparison with existing conditions, meetings, and sharing changes—AR will begin to be used continuously on site. Conversely, if it becomes a specialized technique used only by certain personnel, it may stop being used when those personnel change.

Establishing the use of AR for drawings on-site isn't about a flashy introduction. It's about incrementally reducing uncertainty on-site, progressively lightening the verification workflow, and gradually accelerating information sharing among stakeholders. If on-site teams can feel that value, usage will naturally expand. That's why it's important to start small and grow it into a form that fits the site.

How to further advance on-site verification

As we've seen so far, starting to leverage AR for drawings requires four key steps: clarifying objectives, organizing drawing information and standards, piloting with small verification tasks, and creating processes for recording and updating. By covering these points, using AR for drawings moves beyond mere visualization and becomes an operational system that supports on-site information sharing. What is particularly important is reducing the burden between viewing drawings and understanding the actual site, and creating a situation where everyone can speak from the same assumptions.

Furthermore, if you want to advance on-site verification, you need to think about linking the layered understanding of drawings with more reliable handling of actual positions. When the positional relationships understood in the field can be directly tied to concrete position checks and positioning, it becomes easier to reduce the last remaining reinterpretations between the drawings and the site. This perspective is crucial on sites that want to verify positions faster and more accurately.

When considering such operations, means that can incorporate high-precision positioning in a form easy to handle on site—such as LRTK (an iPhone-mounted GNSS high-precision positioning device)—are also effective. By using AR for drawings to speed up on-site understanding and, when necessary, linking that to high-precision position verification, the value of on-site sharing is likely to increase further. Organizing the actions of viewing drawings, overlaying and understanding them on site, and confirming required positions into a single workflow will become increasingly important at future sites.