Welcome to Gossau SG. As a first-time visitor, you will find this station remarkably straightforward compared to major hubs. It is a compact, through-station layout that serves as a vital junction between standard-gauge SBB lines and the narrow-gauge Appenzell Railways.
The station features a simple arrangement with two primary island platforms serving four standard tracks (numbered 1, 3, and 4 are the main passenger tracks). Think of the station layout as a single, cohesive unit rather than a sprawling complex. Most long-distance InterCity (IC) and InterRegio (IR) trains, as well as the S1 and S5 commuter lines heading toward St. Gallen, stop at these main platforms.
A key point of potential confusion is the Appenzell Railways (AB) service. The S23 line to Wasserauen departs from an adjacent, secondary area of the station, specifically identified as platforms 11 and 12. These are physically distinct from the main SBB platforms. If you are transferring from an SBB train to the S23, do not expect to simply walk across a single platform; you will need to follow the signage for "Appenzeller Bahnen" or "S23" to reach the correct boarding area.
Because the entire station is quite small, you will not face the long transit times found in larger cities. You can comfortably walk between the main SBB platforms and the AB platforms in under three minutes, even with luggage. The station is ground-level, making transitions between tracks relatively easy, though always look for the overhead or underpass signs to ensure you are crossing safely if your connection requires changing platforms.
To navigate effectively, prioritize checking the digital departure boards located in the main concourse or near the station entrance as soon as you arrive. These boards provide the most accurate, real-time platform information, as track assignments can occasionally shift due to maintenance or schedule adjustments. If you find yourself unsure, the station is small enough that a quick glance at the clearly marked signage will usually point you in the right direction. Just remember: if your train is an S23, it is almost certainly departing from the separate AB area, not the main SBB tracks.