Citic Securities: fundamental recovery and valuation Resonance Logic concerned about Intelligence Transportation Research News believes that the rail transit system, as an important part of the national transportation network, has continuously absorbed technological advances such as artificial intelligence and big data in recent years, and the industry has a clear development trend towards intelligence, and AI+ rail transit has become one of the landing scenarios at the application level of artificial intelligence. Combined with the specific requirements of the development plan of China's rail transit industry during the 14th five-year Plan, we are optimistic about the logic of the rail transit industry to achieve performance recovery under the background of economic improvement, and is expected to boost the overall profitability of the intelligent rail transit sector through technology such as AI, and bring industry β opportunities. It is recommended to pay attention to the deep participants in the smart communication industry.