Drainage Impact Management
The wastewater generated by Taipei Metro's 117 stations and its affiliated enterprises is primarily domestic sewage. If the stations are not located within areas served by public sewer systems, septic tanks are installed in principle for treatment, with the effluent discharged or the sludge extracted and transported to wastewater treatment plants. If the eight depots do not connect to the public sewage system, they must install wastewater treatment facilities to treat the wastewater to meet the discharge water quality standards approved by the permit before releasing it into nearby water bodies. According to the Water Pollution Control Act, the discharge water quality standards must be reported semiannually, in January and July each year. No incidents of effluent discharge exceeding standards have occurred in the past three years.
Waste Management
Waste Reduction and Impact Mitigation
In alignment with Taipei City's plastic reduction policy, the Company continues to promote the elimination of bottled water, single-use, and melamine tableware, while encouraging the use of personal reusable cups and utensils to foster sustainable living habits. In 2024, Taipei Metro implemented three-dimensional container recycling and waste weighing measurement at the Rapid Transit Administration Building. Through electronic announcements and on-site promotion, the recycling rate was increased, achieving an annual recycling rate of 40.95% and a total recycled volume of 18,013 kg. At the same time, Taipei Metro has actively implemented paper saving measures, including online approvals and digitization of meeting materials. In 2024, paper procurement was reduced to 1,017 boxes, significantly below the target, achieving a savings rate of 50.13%.
Noise and Vibration Management
The primary impacts of Metro operations on the surrounding environment are noise and vibration. Taipei Metro has implemented multiple improvement measures and adjusts its operational model as needed. In 2024, there were no noise exceedance incidents. A total of 84 noise and vibration complaints were received throughout the year, representing a decrease of 24 cases compared to the previous year. All complaints have been properly addressed.
Promotion of Green Transportation
Frequent Passenger Program Promotion
Based on the number of rides taken by passengers each month, Taipei Metro provides tiered rewards to encourage the public to use mass transit. The total amount of cashback offered for the year 2024 was NT$1.142 billion, benefiting 253.11 million passengers.
TPASS Executive Yuan Commuter Monthly Pass / Megacity Pass
In 2023, the NT$1,280 monthly pass was upgraded to the NT$1,200 Megacity Pass, expanding its coverage and transportation modes to include Taiwan Railway, Taoyuan Metro, and intercity highway buses. In 2024, Taipei Metro had sold 4.678 million Megacity Passes, with a satisfaction rate of 98.5%. This effectively reduced the city's carbon footprint, made a substantial contribution to urban decarbonization.
“Enjoy Taipei Anytime”Taipei Metro Travel Pass
The Taipei Metro Travel Pass promotes green travel, encouraging visitors to explore the urban charm of Taipei through low-carbon methods. A variety of joint passes were also released in collaboration with other transit operators to boost intermodal travel convenience, including Taoyuan Airport MRT/Taipei Metro Joint Tickets, THSR Holiday Tickets, and the Taipei Metro x China Airlines Metro-Airline Combo Ticket. In 2024, the "Travel Taipei by Metro" pass sales reached 249,000.
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