French high-speed rail operator Proxima has placed an order worth almost €850 million ($939 million) with French rolling-stock maker Alstom, Alstom announced on Thursday. The order involves supplying 12 Avelia Horizon very high-speed trains and providing 15 years of maintenance along the Atlantic coast in France. First deliveries of the trains are expected in 2028. Alstom’s Avelia Horizon very high-speed train is the latest generation of double-decker trains capable of travelling at speeds over 300 kilometres per hour. Avelia Horizon reduces operating costs, with fewer bogies, which account fo…