One of the aspects of commuting by bike in Vancouver in the winter where insult is added to injury is the fact that grit, wetness, leaves, etc. all seem to accumulate in the bike lanes on big streets.
Take 16th, for example, as I’m heading to UBC. Last week we had some days that were somewhat dry, but followed on wetter days. The road was either dry or just wet as passing cars were drying it off.
Trees are obviously dropping lots of leaves onto roads (though less so on the stretch through Pacific Spirit Park) and the amount of rain seems to wash a fair bit of gravel and grit onto the road.
All this grit seems to accumulate in the bike lane. My shoe covers and the bottom of the forward-diagonal tube on the bike look like they’ve been gently sandblasted by the time I arrive on campus.
The fix for all of this? Obvious! More people riding => more grit gets thrown up and out of the cycle lane.