Metro Line 10 (Yangji East to Xilang), Line 12 East (Ersha Island to Higher Education Mega Center South) and West (Xunfenggang to Guangzhou Gymnasium) have officially entered initial service. This expansion brings Guangzhou’s total metro network length to 751.1 kilometers, with the Greater Bay Area’s rail transit network exceeding 1,100 kilometers.

Lines 10 and 12 connect multiple administrative districts and integrate key cultural, commercial, and transport hubs, and interchange with multiple lines and Guangzhou Baiyun Railway Station. Beyond providing public convenience, they significantly strengthen economic ties between Guangzhou’s central urban area and outlying districts.

As a leading enterprise in the audiovisual industry, itc established an interdisciplinary technical team from the project outset to model the tunnel and station environment, tackling challenges of narrow transit spaces, complex electromagnetic interference, and overlapping system signals.

To develop a comprehensive technical management system including design, construction, debugging, and maintenance, itc Railway PA System is adopted to enhance equipment monitoring, fault prediction, and remote diagnostics, enabling full lifecycle data management for rail spaces.

Leveraging AI, IoT, and cloud computing, itc Railway PA System unites train, station, and track into a seamless operations ecosystem. The intelligent O&M upgrade for Lines 10 and 12 injects fresh momentum into rail construction.

itc Railway PA System

Developed in strict compliance with the standard of Technical Specifications for Metro Digital PA System (T/GDAQI 044–2020), itc Railway PA System is a fully digital, proprietary solution for metro, high-speed rail, and light rail scenarios. It delivers professional-grade audio quality with ultra-low end-to-end latency (5 milliseconds) for Guangzhou Metro Lines 10 and 12. Whether for announcements or background music, the system ensures clear, nuanced sound for superior passenger experiences.

For broadcast continuity, the system adopts a 4-main and 1-backup power amplifier redundancy strategy. If the main devices fail, automatic switching to backups ensures uninterrupted service. Features include real-time text-to-speech conversion and multiple languages. Built-in noise sensors measure platform or onboard ambient levels and adjust volume on the fly, ensuring messages remain audible while optimizing passenger comfort.

The system supports parallel broadcasting of up to 128 audio sources without interference, enabling simultaneous playback of arrival alerts, safety notices, and commercials. Its zone and group management allows customized content for platforms, concourses, and carriages. In emergencies, priority management automatically activates disaster-response mode, broadcasting evacuation instructions first to safeguard passengers.

The opening of Lines 10 and 12 densifies central Guangzhou's rail network and accelerates urbanization.

By embedding itc smart technologies into the Guangzhou Metro, itc provided a blueprint for intelligent, automated rail transit management nationwide. As more lines embrace such advanced solutions, passengers will enjoy faster, more convenient journeys, and transit authorities will benefit from simpler management and swifter emergency response.