"Worksite" Visualizes Who, What Task, What Role in Construction Sites

MCD3 Co., Ltd. (Shibuya-ku, Tokyo; Representative Director and President: Masao Iida) has released Ver.2.0 of its on-site construction management service, "Worksite." With this version, the new "Role/Qualification Function," which digitally manages worker roles and qualifications in construction sites on a per-task basis, will be provided as a standard feature to all general contractors. We will continue to enhance the service to not only improve the efficiency of inter-task communication and coordination but also to support the advancement of safety management operations. For the development and verification of this function, we received cooperation from Taisei Corporation (Headquarters: Shinjuku-ku, Tokyo; Representative Director and President: Yoshiro Aikawa), conducting a one-year demonstration at their construction sites.

**Background of Development**

At construction sites, clearly defining "who," "for which task," and "what role" each worker is assigned is fundamental to the safety management system. However, in many sites, foremen often give instructions verbally, which can lead to an unclear chain of command and a lack of records, posing significant challenges.

To solve these issues, MCD3 developed the "Role/Qualification Function." This function digitally centralizes the management of "who," "for which task," and "what role," thereby visualizing the chain of command. Furthermore, by linking with "Green Site" (a service for creating labor safety documents, *1), it becomes easy to confirm the consistency between roles and qualifications. With the integration of this function, Worksite evolves into a service that supports advanced safety management operations, in addition to conventional operational efficiency improvements through inter-task communication and coordination.

**Collaboration with Taisei Corporation**

For the development and verification of the Role/Qualification Function, we received cooperation from Taisei Corporation (Architectural Headquarters, Safety and Environment Promotion Office). The company faced challenges such as "wanting to clarify the assignment and roles of workers engaged in each task" and "wanting to efficiently understand and visualize the chain of command." A one-year demonstration was conducted at their construction sites to verify operability and operational effectiveness in actual safety management operations.

During the demonstration period, continuous adjustments and improvements were made based on feedback from Taisei Corporation, leading to the current standard provision of the function, which is tailored to the actual operational conditions of the sites. The utilization of this function contributes to improving the effectiveness of the safety management system, such including the visualization of the chain of command and the systematization of check operations by general contractor employees.

**Comment from Mr. Goro Miyaji, Manager, Business Improvement Office, Architectural Strategy Department, Architectural Headquarters, Taisei Corporation**

Clarifying the chain of command for each task performed by foremen, or creating what is known as "banwari" (*2) / member lists, was often done verbally, and in many cases, no records were left. If new documents were to be established and filled out manually for this purpose, it would further burden foremen who already have numerous safety documents to create. Although a chain of command exists per tier based on the construction system diagram, it often cannot reflect the chain of command for actual individual tasks. Therefore, we were looking for a mechanism to easily visualize this on a per-task basis.

This time, with the cooperation of MCD3 Co., Ltd., by utilizing the skilled worker roster, qualification information, and entry/exit data stored in Green Site, foremen can easily assign roles, plan personnel placement, and confirm necessary qualifications for their subordinate skilled workers for each task in advance, and then verify and correct these during the daily KY (Kiken Yochi - danger prediction) activities (*3) to match the actual situation.

We believe this will eliminate tasks performed with an unclear chain of command and lead to a reduction in accidents caused by communication deficiencies. Additionally, we expect a secondary benefit for our cooperating companies: the accumulation of daily work history for their skilled workers.

**Main Features of the Role/Qualification Function**

The Role/Qualification Function allows for the registration and management of worker "roles" and related "qualifications" on a per-task basis at construction sites, and enables their output as reports. It seamlessly links with the worker master and qualification information registered in Green Site, contributing to the visualization of the safety management system and the reduction of entry errors.

1. **Selective input via Green Site linkage** Worker master and qualification information registered in Green Site can be referenced and selected within Worksite. It also supports searching by tier and company name, preventing entry errors from manual input. Furthermore, the presence of statutory qualifications, such as those for construction managers, can be confirmed on screen, supporting the appropriate placement of qualified personnel.

When a worker's name is selected (top), registered qualifications from Green Site can be chosen from a dropdown menu (bottom).

2. **Linkage with KY activity records** Workers registered using the Role/Qualification Function on the previous day can be registered as participants in the KY activity for the day of work. The KY participant list screen allows for direct confirmation of each worker's role and qualification.