Noise and Air Pollution Management

Noise and Vibration Management

THSRC has formulated the "High Speed Rail Noise Improvement Plan" and the "Noise & Vibration Petition Treatment for HSR During Operation," and established the "High Speed Rail Noise Case Handling Process" to implement the most complete noise handling and prevention procedures. Executives at each station participate in activities and communicate with local opinion leaders and residents to achieve a win-win situation through communication. In 2025, there were 13 complaints from the public regarding noise and vibration management. There were no cases that required improvement as notified by environmental protection competent authorities. However, in 2024, two noise complaints were filed from Zhongshan Road, Luzhu District, Taoyuan City, and Gaotie 5th Road, Zhongli District, Taoyuan City. Monitoring results from the Department of Environmental Protection indicated that the average maximum noise level of the high-speed rail on these sections exceeded the limits specified in the "Land Transportation System Noise Control Standards." THSRC handled these cases appropriately through a dedicated task force and formulated noise improvement plans. The relevant improvement plans were approved and registered by the Taoyuan City Government for future reference in June and October 2025, respectively. Please refer to the table below for the relevant handling processes and status:

High Speed Rail Noise Case Handling Process

Note: The level of impact is determined in accordance with the technical specifications for environmental impact assessment set by the Ministry of Environment.

Noise Case Handling Statistics (2024-2025)

Air Pollution Management

THSRC's main operating mode relies on the power system. Although there are no issues with air pollutant emissions during regular operation, a small amount of emissions may still be generated during train maintenance at the Yanchao Main Workshop. In this regard, the automated spray painting factory was constructed since 2021 and was completed in 2025 with air pollution control equipment, including manual painting factory, adding a central control system, automatic painting robot arm, electric self-propelled trolley (replacing bogie), automatic car washing (sewage recycling) equipment, and grinding and lifting platform and pulse bag dust collectors, activated carbon adsorption equipment, as well as catalyst incineration towers and other equipment, which are used to treat dust and volatile organic compounds (VOCs) generated during the spray painting process of trains. It is anticipated to be effective in preventing and controlling air pollutant emissions.

THSRC also obtained a stationary pollution source installation permit, and a stationary pollution source operation permit. Additionally, a report is regularly filed every quarter in accordance with the Ministry of Environment's "Administrative Measures for the Reporting of Stationary Pollutant Emissions in Public and Private Places." THSRC not only continues to perform environmental monitoring and environmental protection work through the Company's environmental management system, but conducts audits on the treatment of wastewater, waste and air quality at the Company's stations and maintenance depots through external environmental protection teams as well. In 2025, there was no punishment or penalty imposed by the competent authority due to environmental pollution.

In 2025, the total air pollution emissions from THSRC were 10.144 metric tons. Please refer to the table right for the emissions of different types of gases:

Note: Relevant air pollution data is only required for online registration and reporting if it meets the minimum threshold specified in the "Regulations Governing the Reporting of Air Pollutant Emissions from Stationary Pollution Sources in Public and Private Premises." Therefore, emissions are based on the actual reported information, and the data is not subject to additional rounding.