The Taisei Group has stipulated “Communication with local communities” in the Action Guidelines for Taisei Personnel and the Taisei Group as a Whole, and clearly stated that it endeavors, in executing its duties, to prevent the generation of environmental effects such as noise, vibration, and odor, and to protect the living environment of local residents and neighboring areas.
Taisei Corporation has committed to “aim to provide value with zero environmental risk” in order “to realize a society where safety is ensured” as one of the 2050 Targets in its 2050 Environmental Targets, TAISEI Green Target 2050.
To achieve this target, we will work to continue having “zero environmental accidents by properly managing construction byproducts and complying with environmental laws and regulations” by 2030. To achieve these medium- to long-term targets, Taisei Corporation has set specific, quantitative annual targets and KPIs, and is making efforts while checking their progress. In addition, we are making efforts to reduce the impact of construction work on the environment, and aiming to continue having zero environmental accidents while setting the management of toxic substances and polluted water (prevention of water pollution caused by construction wastewater, etc.) as a management priority.
Risks and Opportunities
Environment pollution caused by construction has a significant impact on the surroundings and society. Compliance with environmental laws and regulations is always one of the most important environmental issues. We keep contributing to the reduction of socio-environmental risks during construction by promoting the proper management of construction waste, the development and application of new technologies to comply with the regulations for soil pollution and the promotion of methods that reduce the burden on the surrounding environment.
EMS's Organizational (EMS)
Taisei Corporation operates an Environmental Management System (EMS) based on ISO14001 on a company-wide basis. We have established an Environmental Committee, chaired by the President, which deliberates and decides on environmental policy and environmental targets that are important for environmental management, in addition to medium- and long-term targets and environment-related initiatives that lead to external evaluations.
Risk Measures at Worksites
With a “worksite environment patrol,” the Environment Division of the Head Office and branches conduct an internal audit to check the observance of the environmental laws and regulations at worksites. As for the findings, we establish corrective and preventative measures for continuous improvement.
At a worksite, based on the Environment Management manual, we provide environmental education to our employees and specialized contractors. By sharing the cases that could result in an environmental accident, issuing notifications of the proper management of toxic substances such as asbestos and PCB, and reinforcing adequate control and treatment of polluted soil, we have been raising awareness of the importance of environment management and the prevention of environmental accidents. Regarding the management of water resources, Taisei Corporation is working to “prevent water pollution caused by construction wastewater and the like” as a management priority. In fiscal 2020, there were no violations of environmental laws and regulations caused by construction wastewater.
|Noise||Conducted early communication with neighbors in response to complaints about nighttime concrete-related work.|
|Water pollution||Recovered fuel leakage from a crane vessel with an adsorption mat and implemented measures to prevent a recurrence.|
|Vibration||Changed to work during a factory holiday in response to complaints about heavy machinery work in the factory.|
|Dust||Implemented measures such as spraying water and installing sheets in response to complaints about dust from construction work.|
Complaint to Worksites and Handling Thereof
We take proper measures regarding environment-related complaints addressed to a workplace, make a record and report using a communication sheet based on an environment management system (EMS) procedure and share the information horizontally among concerned departments or within the entire Company as required.
In addition, we are properly handling comments given by citizen groups.
Percentage by Complaint Item
Developing new technologies to realize a society that ensures safety
1) Use of Life Cycle Analysis (LCA)
Life cycle analysis (LCA) of structures aims to assess the overall environmental impact of buildings from their construction through to their use and eventual demolition. In the construction sector, the Architectural Institute of Japan has released guidelines for building LCA, and Taisei Corporation also makes use of this tool. Taisei Corporation proposes the optimal buildings and equipment by predicting the necessary costs and environmental footprint of the structures that it builds throughout their long life cycle, from the planning and design phase that considers the entire building life cycle, to the construction phase that includes new construction, refurbishment, and demolition, and the operations stage after the work is completed and delivered to the customer.
2) Established a water treatment process using the degrading bacterium.
1,4-dioxane is a chemical substance that is commonly used as a solvent in the chemical industry, but it is now subject to water pollution regulations. However, since this sub¬stance does not decompose easily, the environmental burden and cost required for its handling pose major issues. We searched for 1,4-dioxane-degrading bacterium from vari¬ous environments, and found a new bacterium to degrade 1,4-dioxane effectively. We have established a water treatment process using the degrading bacterium, and com¬pleted verification using polluted groundwater and factory wastewater.
3) Developed a Cutting-Edge Method of Demolishing Skyscrapers Known as“Tecolep-Light system”
We successfully developed “Tecolep-Light system,” a cutting-edge method of demolishing skyscrapers. The Tecolep system is an environmentally-conscious method of demolishing skyscrapers by repeatedly jacking down from the upper level, while minimizing dust, noise, and other particles, etc. which may negatively affect the surrounding environment.
Unitized lightweight roof structures can reduce the time to create a closed space, allowing demolition work to be completed in a shorter period of time.