The operators of the StarTollway, South Luzon Expressway (SLEX) and the Skyway System, now known as the South Tollway System (STS), have introduced a creative way of further promoting road safety. They have started to tap personalities in the field of business, sports and entertainment, who believe that a healthy lifestyle goes hand in hand with responsible and safe driving, to be road safety advocates. One such advocate is TV personality Danielle Castano, the 2008 Bb. Pilipinas 1st runner-up. STS is part of the infrastructure unit of the diversified conglomerate San Miguel Corporation.