Bay Area Rapid Transit (BART) Practice Exam 2026 - Free BART Practice Questions and Study Guide

When a D Car Y end crew door is not latched during the assembly of a train, it does not prevent the train from moving in any mode. The train is designed to operate even if this particular door is not secured, which allows for flexibility in its movement. However, operational procedures and safety protocols should still be followed to ensure the safety of passengers and crew. Generally, while it may be permissible for the train to operate with an unlatched crew door, this situation should be addressed before the train reaches any populated areas or begins regular service to avoid any potential safety hazards.

Understanding that the train can move is crucial; thus, during routine checks and maintenance, confirming that all doors are properly closed and latched is essential for long-term safety and operational efficiency.