Using some tech know-how and the goodwill of his fellow bicycle commuters, he built winterbiking.ca. Basically, it’s a crowdsourced map of winter-bike routes. If users encounter some winter obstacle on bike routes, they visit the site and add their comments. The result is a constantly updated map detailing the passability of bike routes. “It can accept data any time, and quite a bit was drawn on when the big snowfall came,” he said. Since launching it a few months ago, Reynard has been tweaking the project to improve it (another project uses data from fitness-tracking app Strava to measure where people are riding) but the real challenge is getting people to contribute. The map is only as good as the data people input.