When a train approaches a Stop and Proceed indication, what can it do without stopping?

When a train approaches a Stop and Proceed indication, it is allowed to continue on the main track when clear without stopping. The Stop and Proceed signal indicates that the train must be prepared to stop but may proceed at a restricted speed, allowing for safe passage through areas where there may be work or other hazards.

The critical aspect of this situation is the requirement for the engineer to ensure that the track ahead is clear before proceeding. This ensures that safety is maintained while allowing some limited motion rather than halting entirely, which can be important for train schedules and operations.

The other options suggest actions that are not permissible under this indication. For instance, switching tracks or speeding up to bypass the signal do not align with the safety protocols associated with a Stop and Proceed indication, as they introduce potential risks and do not adhere to the rules governing train operations in these scenarios.