Deutsch How to get to the Paul Scherrer Institute PSI is located in northern Switzerland, approximately midway between Zürich and Basel. The nearest towns and railway stations are Baden and Brugg. Frequent air and train connections via Zürich or Basel are available from all major European cities. To reach PSI by public transport Brugg is on the train line (Zürich–Basel, Zürich–Bern). You can take a public bus (Postauto) from Brugg railway station. Take the Brugg–PSI–Böttstein–Döttingen bus, and within 20 minutes you will arrive at PSI. When you land at the airport There is an SBB railway station at the International Airport at Zürich-Kloten. Take the train to Brugg and a public bus (Postauto) from Brugg railway station to Villigen PSI. To find PSI by car You can reach PSI via Brugg or Baden. Via Brugg: Follow the Koblenz–Zurzach signs through Brugg. After passing through Lauffohr and a short hill, branch off to the left towards Remigen/Villigen; then after about 500 m turn right towards Villigen. Approximately 1 km after leaving Villigen you will reach PSI-West. You can drive to PSI-East via the bridge over the river Aare. Via Baden: Follow the Koblenz–Zurzach signs through Baden. Drive through Nussbaumen, Untersiggenthal and Station Siggenthal. Approximately 1.5 km beyond the roundabout, follow the sign left towards PSI at the crossroads and you will reach PSI-East. You can drive to PSI-West via the bridge over the river Aare. For printable version please click in plan.