Roland Ratzenberger
Following the deaths of Roland Ratzenberger and Ayrton Senna at Imola in 1994, the following F1 races saw the introduction of chicanes made up from stacked tyres. The entry to Eau Rouge was obstructed in such a way in 1994, although it was returned to its previous configuration the following year. The corner was slightly modified for the 2002 Belgian Grand Prix.