Researchers from around the world gather in Calgary this week to address issues and share research on older drivers.

Issues such as aging, eyesight, health and medical problems can put older drivers, and others, at risk.

This week's symposium looks at creating a better system for assessing and licensing them.

Dave Hogan, with the University of Calgary's centre on aging, says the system right now isn't great.

"There is concern that it's not an optimal process or entirely fair and transparent process at this time," he said. "Our goal is to try and make it better for everyone."

Starting at the age of 75, drivers in Alberta need to have a physical exam and a recommendation by their doctor to keep driving -- and again at 80 and every two years after that.

"We're not interested in saying older people shouldn't drive, but we're interested in picking out those were it could be a concern and working out a fair process for them to be assessed and evaluated and have their transportation needs looked at," said Hogan.

Statistics show that by 2026 there will be one in five Canadian drivers more than 65.