Thursday 16 December 2010

Road slime


I got caught out this week on a ride home from work. I've cycled to work for many years and, although the location has changed over the years, much of my route has remained the same. I don't know how many times I've crossed over the mini-roundabouts on Whalley Old Road in Little Harwood but it must be in excess of ten thousand commutes. That's all year every year, even during snow, ice and heavy rain. For any readers unaware of what mini-roundabouts are (I know roundabouts are uncommon in the USA as a four-way stop is more the norm), it is a smaller version of a conventional roundabout but where the island, around which traffic circulates, is much smaller. The normal traffic rules of a roundabout apply even though the mini-roundabout may just be a painted circle in a regular road junction. That is what the ones in Whalley Old Road are, painted circles on what is an old road.

I know road paint provides less friction than tarmac and so usually make allowance when turning on it. Everything was going well with little traffic around and the ride was flowing nicely. When I got the the junction, the line I took was over the roundabout circle as there were no cars around and it makes the turn less sharp but does mean going across the paint. I misjudged the conditions contributing to a lack of traction and got caught out when my front wheel went from under me and both my bike and myself ended up sliding sideways across the road. Luckily I only suffered a bashed arm and bruised shoulder as I hit the road and a jacket that instantly went from day-glow yellow to black on the right side.

The weather had been dry for a few days but the roads, which were been covered with a concentration of road salt and were still damp. As it had dissolved, the salt instead of drying out had turned into a greasy, slimy damp black film. This is quite common in our damp north-west climate. Even tarmac becomes slippery when covered with this film as was demonstrated the next morning by a car skidding as it set off from a side road. I'm normally wary of this salt slime as there are one or two places where the tarmac is quite smooth and I've felt a loss of traction when turning. I allow for it and take the turn slowly, keeping as upright as possible. Now I'm even more wary and there's a lot of winter still to get through.

Safe (winter) cycling...

1 comment:

Ben said...

hi...we just returned from England and experienced the mini roundabouts....they are confusing, and adding slime to the mix must be extra tricky....glad you're well save for the clothing...