Personally, I think that the major of railway rail transit signal and control is not very good in traffic information engineering and control. If you major in railway, your employment will be narrow. It doesn't matter if the junior college students want to enter the design institute, it is estimated that there is no hope. Now the treatment of the railway and subway is really bad, and after you enter, it is difficult for you to improve yourself. Basically, all you do is very mechanical work. If it is controlled, it is better to have a wide range of employment, and there are many enterprises and design institutes in highway. As long as you are willing to learn, you can't do well at first, and you can change your job in a few years. The most important thing is that intelligent transportation is very popular now. Decent cities in China are engaged in intelligent transportation construction. Although PS calls intelligent transportation every day in China, it has not yet established the foundation of intelligent transportation. Intelligent transportation mainly needs students majoring in traffic control. The above is my humble opinion.