A 38-year-old Waterloo, Ont., woman has been killed after their vehicle drove over a snowbank on the Highway 7 flyover ramp and fell onto Highway 8 below.

Signs are posted, but the on- and off-ramp was designed in a way that simply isn't always clear, experts say. Many drivers seem to hesitate, perhaps understandably, before committing to a direction.

A car flying over highway guardrails, propelled into the air with the help of a snowbank on the shoulder, might seem unusual. But since a snowstorm swept Ontario last month, it has happened four times ...

The on-ramp was closed last year as part of a $500 million construction project.