According to the recruitment information of Anhui pipe network rail transit, rail transit engineers are mainly responsible for the design, construction and maintenance of rail transit system. Most of these works are carried out indoors, including making design scheme, drawing construction drawings and carrying out technical calculation and simulation. In addition, rail transit engineers need to participate in project management and coordination, and communicate and cooperate with other relevant departments. Although it may be necessary to go to the site for inspection and supervision in the actual construction and maintenance process, generally speaking, the work of rail transit engineers is mainly carried out indoors.