ineffective at slowing cars; the Vialone was remade in 1974, the other, Curva Grande in 1976, and a third also added in 1976 before the Lesmo, with extended run-off areas. The Grand Prix lap after these alterations was increased to long. With technology still increasing vehicle speeds the track was modified again in 1979 with added safety measures such as new kerbs, extended run-off areas and tyre-barriers to improve safety for drivers off the track. The infrastructure was also improved, with pits able to accommodate 46 cars, and an upgraded paddock and scrutineering facilities. These changes encouraged world championship motorcycling to return in 1981, but further safety work was undertaken through the 1980s. Also in the 1980s the podium, paddock and pits complex, stands, and camp site were either rebuilt or improved. As motorsport became more safety conscious following the deaths of Ayrton Senna and Roland Ratzenberger in at the Imola circuit, the three main long curves were "squeezed" in order to install larger gravel traps, shortening the lap to . In the stands were reworked to expand capacity to 51,000. In , the chicane on the main straight was altered, changing from a double left-right chicane to a single right-left chicane in an attempt to reduce the frequent accidents at the starts due to the conformation of the braking area, although it is still deemed unsafe in terms of motorcycle racing. The second chicane was also re-profiled. In the Formula 1 Grand Prix of the same year, the first to use these new chicanes, a fire marshal, Paolo Gislimberti, was killed by flying debris after a big pileup at the second chicane. In 2007, the run-off area at the second chicane was changed from gravel to asphalt. The length of the track in its current configuration is . At the 2010 Monza Superbike World Championship round, Italian rider Max Biaggi set the fastest ever motorcycle lap of Monza when he rode his Aprilia RSV4 1000 F to pole position in a time of 1:42.121. In the Superpole qualification for the 2011 race, he improved on this lap time, for a new lap record of 1:41.745 and his speed was captured at 205+ MPH. In late 2016, work was planned on a new first bend, which would have bypassed the first chicane and the Curva Grande. Drivers were to go through a fast right hand kink and into a new,