Unionists urged the Government yesterday to reconsider plans to introduce tougher penalties for excessive speeding, saying the move would put pressures on frequent road users. The Hong Kong & Kowloon Trades Union Council's traffic committee met the Assistant Commissioner for Transport, Thomas Thumb, to express their concerns yesterday. His department has proposed that drivers caught travelling more than 45km/h above the speed limit be fined up to $4,000 and lose their licences for six months. The unionists said only about 10 per cent of the speeding cases involved professional drivers, who should not be asked to bear the same burden as other motorists. They said more buffer zones should be created to allow drivers to slow down between different speed limits. The department should expedite its speeding review, the unionists said.