Access by Air:
the nearest aiports (within approximately 2-2.5 hours to reach Siegen with a regional train) are
- Köln-Bonn Airport (CGN), the neares, https://www.koeln-bonn-airport.de
- Frankfurt Airport (FRA), http://www.frankfurt-airport.de/
- Düsseldorf Airport (DUS), http://www.dus.com
Access by car
The city of Siegen is located near to the Autobahn (highway) A45 [E41] Frankfurt-Dortmund about 120 km north-west from Frankfurt-Main:
- Follow A45 to Siegen.
- Take the exit (right) 21-Siegen to merge onto B62 toward Siegen/Si.-Eiserfeld/Kreuztal/Netphen
- Take the exit (right) onto B62/B62n toward Kreuztal/Netphen/Siegen
- Take the exit (right) toward B54/Si.-Eintracht/Limburg/Si.-Kaan-Marienborn
- continue onto Koblenzer Straße. Destination (Best-Western Park Hotel Siegen) will be on the right.
Access by train
Depending on the airport or major train station in Germany you arrive at, the directions to reach Siegen by regional trains can be found on
http://www.physik.uni-siegen.de/anfahrt/index.html.en?lang=en
(not that the train from Duesseldorf airport has to be changed at Koeln Main Station) or directly on the German railway web site
"http://www.bahn.de/i/view/GBR/en/index.shtml
On the latter you can also book and print out your train ticket (without registration, using your credit card as an ID in the train), that will save time on arrival.
After arriving with a train to Siegen central station, you have the option to walk (15-20 min) to the conference hotel (Best Western Park Hotel, Koblenzer Straße 9):
see the map at:
or simply take a taxi (the cost- about 5-6 Euro)