Xin Hua Cai Jing·2025-07-16 15:56Group 1 - The Buenos Aires city government has awarded the subway B line train renewal project to CRRC Changchun Railway Vehicles Co., Ltd, which is expected to enhance train frequency and passenger comfort, benefiting at least 180,000 daily passengers [2] - The project involves the provision of 174 new air-conditioned trains to replace aging vehicles that have been in service for decades, with an estimated investment of approximately $301.5 million [2] - New trains will be equipped with surveillance cameras, audiovisual dual-mode passenger information systems, anti-vandalism LED lighting, and longitudinal seating, while also being compatible with existing signal systems of lines D and H to improve operational safety [2] Group 2 - The infrastructure upgrades will include increasing the power supply voltage from 600 volts to 1500 volts, updating tracks and switch equipment to accommodate the new trains, promoting modern, efficient, and sustainable train technology [2] - The mayor of Buenos Aires, Jorge Macri, stated that this initiative is a historic step towards improving the lives of citizens and tourists by providing safer, more comfortable, and modern train travel [2] - This project, along with the previous procurement of 40 trains for lines A and C, represents the largest investment in rail vehicles in the city over the past decade and is part of a broader plan for a more efficient and interconnected urban environment [3]