text: In August 1995 , the TTC suffered the deadliest subway accident in Canadian history known as the Russell Hill accident , on the Yonge-University-Spadina Line south of St. Clair West station .
simplified: In August 1995 , the TTC had a really bad subway accident in what it calls the Russell Hill accident , on the Yonge-University-Spadina Line south of St. Clair West station .