The meeting will take place in the Institute of High Energy Physics, 1040 Wien, Wohllebengasse 12 - 14. Here is the map. The workshop will be broadcast on vidyo.
The closest metro station is "Karlsplatz" (U1, U2, U4, and many busses and trams). For more details, see here.
The closest hotel is "Hotel Johann Strauss" (map,website).
Other hotels in the vicinity can be found on this map.
Restaurants close to the workshop venue can be found here.