You may have seen them, without knowing what they were: three white dots, each about the size of a dinner plate, painted on the road at intersections throughout the city. The mysterious markings, dubbed "bike dots," are one of the lesser-known and least-advertised components of the city's ambitious bike plan.

A new project by the city's cycling committee and the Toronto Cyclists Union asks cyclists to suggest quick fixes to make the area – bordered by the Gardiner Expressway, Bloor St., Bathurst St. and Keele St./Parkside Dr. – more bike-friendly. "It's tricky," said Yvonne Bambrick, spokesperson for the bike union, who describes the area as "a black hole" in a city that, in general, has a scant network of paths and trails.