From the usual 3-car train setup, the Metro Rail Transit Line 3 is planning to expand its configuration to 4 cars in a set, to increase passenger carrying capacity., the MRT3 management said the plan to use a 4-car train setup stems from the successful "dynamic testing" operation on March 9, 2022.
This was after the successful dynamic testing of a train in 4-car configuration that was done to assess the vehicle's running safety, ride comfort, and stability against derailment, among others. According to the management, MRT3's station platforms are designed to accommodate 4-car train operation.