The driver of the bus - who was killed in the crash - knew the route well and would not have been tired, the head of Kowloon Motor Bus said. The 37-year-old bus captain, who joined KMB in 1997, was certified dead at the scene after the vehicle plunged down the 50-metre slope between the Tsuen Wan town centre and the Tai Lam Tunnel bus interchange. KMB managing director John Chan Cho-chak said the driver knew the route well and was well rested. 'He was a very experienced driver who had been working for us for six years,' he said. 'He'd been driving this route since 2001. [The accident occurred on] the driver's first trip today. 'He'd got a very good record. The driver took a day off on Tuesday. He had had enough rest.' A KMB statement said the bus captain had started his day's work at 4.45am and it was unlikely that the accident was caused by fatigue. The 12-metre long, 16.3 tonne bus was a Neoplan model made in Germany and could carry 126 people. It was two years and eight months old. KMB has 162 buses of the same model. Mr Chan said the bus was in good condition and had passed a monthly maintenance check two days ago. There were 40 passengers on the bus when the accident occurred. Most were on their way to school or work, according to KMB's statement. The company will offer $30,000 to the families of every passenger and the driver. The 53-year-old driver of the truck has been arrested on suspicion of dangerous driving causing death.