The union which represents a road maintenance workers in Tasmania is urging motorists to slow down after a man died on the job yesterday.
The 62-year-old man was directing traffic in a road works area in Mowbray when he was struck by a ute.
He later died in hospital.
Police say it is too early to say whether speed was a factor.
Rodney Burles from the Communications, Electrical and Plumbing Union says speeding in road works areas is a problem.
"Motorists are not getting the message, I believe, and I see it all too often when I'm travelling around the state, they speed through these areas," he said.
"I would think it would be highly unlikely that there could be a fatality if people are doing 40 kilometres through these areas."
The union is also critical of Tasmania's workplace watchdog.
Mr Burles says Workplace Standards needs stricter guidelines and more inspectors.
"Obviously it's a tragic event, but our union's been seeing this come for some time."
"We have problems with the Tasmanian inspectorate, we believe its under funded and under resourced."
Workplace Standards has rejected the claim it needs more funding to prevent workplace deaths.
Spokesman Roy Ormerod says the agency has enough inspectors.
"I can ensure everyone that we have a pretty good presence out there in the workplace," he said.
"Our inspectorate numbers remain high, our numbers of inspections are as high as they've ever been, so we do a lot more proactive work than we've ever done in the past.
"I've been encouraging my inspectors to be out and about, not to be deskbound and we've changed systems here to get them out and about more."
A construction worker was killed at a tip in Hobart last week and last September another man died when he fell from the roof of a Devonport worksite.