I was thinking of starting a similar thread so I'm glad to see someone else is pondering this issue as well.
It's an issue that I feel gets right to the heart of many advocacy and safety issues and our "right to the road".
I have been riding a bike for transportation purposes in New England winters for almost 40 years now. A few things I've observed during that time:
#1) A bicycle can be an excellent means of transportation in the winter, even in relatively extreme conditions if the cyclist is well prepared and aware of the limitations and liabilities of winter riding.
#2) Bicyclists are a small percentage of vehicles on the road in mid-summer, maybe 2% at maximum. Meaning 98% of the population has chosen to drive a motorized vehicle, usually a car. In the winter bicyclists are an even smaller percentage. A
really small percentage of vehicles on the road in the winter are bicycles, perhaps 0.0002% of the vehicles will be bicycles. That means more than 99% of people have chosen another means of transport- usually the automobile.
#3) The number of people who will think you are "crazy" for riding to work mid-winter will be much larger than those that roll their eyes when you told them you just rode 100 miles to the company picnic mid-summer. Many of those people will also be "bicyclists" themselves. What this means is that you will have few allies and very few people who understand why you insist on riding a bike in the winter. It is an uphill battle and one that may not be worth engaging in with most people.
#
4) In really bad conditions the only motorized vehicles on the road will be snowplows, emergency vehicles and people in cars who are too stupid to stay home. That means that the bicyclist must be prepared to take evasive maneuvers and ride with extreme caution when in the proximity of any motorized vehicle during the winter.
#5) Snowplow drivers are super dangerous. Don't mess with them. They have often been driving the plow in horrible conditions without sleep for 24-48 hours and are soused in coffee and possibly worse and they may not be able to discern whether your reflectorized vest and blinkie is an alien spacecraft landing or the beginning of a migraine headache but the last thing they'll expect it to be is a bicyclist.
#6) Take the lane and be visible. Drivers often hop into their car after having scraped a small 4" diameter circle in the ice on their windshield and soon the interior of their car windows are fogged to such a degree to turn all drivers into Mr. Magoo. But be prepared to give way when necessary or to take alternatives that will not put you in the way of too many cars. A plowed MUP can be a healthy alternative to the road.
#7) Mid-winter, IMO, is not the time to politicize your bike riding. Take the lane as a necessity but a snow storm is not the time to assert your right to the road in any self-righteous fashion or in a way that can be perceived as such. See point #2- YOU WILL HAVE FEW ALLIES! This is a fact of life, a reality. Most people think you're nuts to be out in that weather- even other cyclists. If the bike lane isn't plowed, if the MUP isn't plowed you're entitled to being ticked off about it but be realistic most town/city/state budgets are cash strapped and special plowing for the .0002% of vehicles during a snow emergency may not be a priority right now and that means being prepared to ride in crap. My commute to and from work can turn into something more akin to a challenging MTB ride than a pleasant road ride. Don't expect a smooth ride. Sorry but no one really feels they owe that to those of us who bike ride in these conditions.
#8) Outfit your bike for winter riding. You have to be an extremely skilled rider to get through a New England winter on a fixed gear with 23 mm slicks. If you're a messenger and only riding downtown on well traveled streets you might be able to get by but if you're commuting 10 miles out of the city you'll encounter roads and conditions that will be challenging to say the least. Have a bike just for winter riding or modify the bike you have. Having a poorly equipped bike in the winter is the equivalent to the jerk in the car driving on bald tires, old windshield wipers and no defroster.
#9) The reality is that people driving their cars are far more dangerous to both themselves and others on the road than a cyclist is in winter conditions. Someone just slid off the road the other day, across the bike path and into the Charles River in their car and died. My sense is that some people have no business being in
cars in those conditions bikes actually do fine.
#
10) Winter cyclists are definitely marching to the beat of a different drummer.