A major project is underway to improve access to the station and redevelop parts of the site. This project will shift the Appenzell Railways tracks and platforms a short distance to the south, permitting the construction of a new bus loading area off Bahnhofplatz. Besides affording greater capacity, this loading area will be handicap-accessible. Traffic congestion will be further reduced by the construction of a roundabout at the intersection of Bahnhofplatz and Bahnhofstrasse, just west of the station. Construction work began in January 2021; it is estimated that the entire project will be complete by 2028.[5]
Services
As of the December 2023 timetable change,[update] the following services stop at Herisau (most regional services are part of the Bodensee S-Bahn):[6][7]
S23: half-hourly service over the Gossau–Wasserauen line between Gossau SG and Wasserauen.
S81: hourly service over the Bodensee–Toggenburg line to St. Gallen.
The S2 and S4 combine for half-hourly service between Wattwil and Altstätten SG; the various services on the Bodensee–Toggenburg line provide one train approximately every 11 minutes between Herisau and St. Gallen.
