Abstract: In most of the existing subway engineering projects, if the non communication vehicle travels a always report blocking(ARB) axle counter section, the section will not be able to maintain the state of the ARB, so that the following CBTC train can not travel through this section. In order to solve this problem, based on the requirements of Beijing subway line 16 project and technology investigations, this article proposed a solution to use manual driving mode (RM) train to clean fault section, after determining the obstacle free or non communication trains in the fault section, convert it to a ARB state, let the CBTC train can be normal through the section. The solution could reduce the influence of non communication vehicle again for operations after ARB, and would be applied to Beijing subway line 16 second-phase project.