#1
|
|||
|
|||
Night and fog
Last night I had a very difficult trip back home. I usually night ride
in town along well lit streets. Occasionally I do a longer night ride when the weather is good enough. This time I had to come back in pitch dark, through thick fog, on a small countryside road. My powerful and proudly-owned Schmidt generator light was beaming straight into the fog, and it was incredibly difficult to see where the roadside was. Impossible to ride faster than, say, 15 km/h (or less ?). And if I stopped... no more light, totally lost. The last stretch is a fast descent I usually ride around 50 km/h; this time, with about 5 m visibility, I had my hands sore from braking the whole way down, and I was happy I knew the place almost by heart. I wonder if someone here has experience on how to better deal with such situations. Turtle |
Ads |
#2
|
|||
|
|||
cyclingturtle wrote in news:418d3ae7$1_1
@news.bluewin.ch: Last night I had a very difficult trip back home. I usually night ride in town along well lit streets. Occasionally I do a longer night ride when the weather is good enough. This time I had to come back in pitch dark, through thick fog, on a small countryside road. My powerful and proudly-owned Schmidt generator light was beaming straight into the fog, and it was incredibly difficult to see where the roadside was. Impossible to ride faster than, say, 15 km/h (or less ?). And if I stopped... no more light, totally lost. The last stretch is a fast descent I usually ride around 50 km/h; this time, with about 5 m visibility, I had my hands sore from braking the whole way down, and I was happy I knew the place almost by heart. I wonder if someone here has experience on how to better deal with such situations. Try angling the light downwards a bit (assuming it's on an adjustable bracket). The big problem with lights in fog is tbe reflection back into your face from the water droplets. So keep the beam angle as low as you can, while still seeing the road and being visible to other traffic. If you ride frequently in fog at night, it might be a good idea to make a shield or hood across the top of the light, blocking out a portion of the upper beam. A small sheet of aluminum or plastic would do the trick. Make the top curved, so you're cutting out more of the upper beam than the sides of the beam. You're still going to have to slow down, obviously, but this should help a little. -- Mike Barrs |
#3
|
|||
|
|||
"cyclingturtle" wrote: (clip) And if I stopped... no more light, totally lost. (clip) ^^^^^^^^^^^^^ In all the discussions about lighting systems, I have not seen this problem mentioned, and I have been wondering why. If you depend on your light to see and be seen, what is supposed to happen when you stop? |
#4
|
|||
|
|||
Sat, 06 Nov 2004 23:59:51 GMT,
, "Leo Lichtman" wrote: In all the discussions about lighting systems, I have not seen this problem mentioned, and I have been wondering why. If you depend on your light to see and be seen, what is supposed to happen when you stop? I use a 3 LED white light and 7 LED red tail light in addition to front and rear lamps powered by the generator. Both in blink mode, the batteries last a long time between charging -- zk |
#5
|
|||
|
|||
On Sat, 06 Nov 2004 23:59:51 GMT, "Leo Lichtman"
wrote: "cyclingturtle" wrote: (clip) And if I stopped... no more light, totally lost. (clip) ^^^^^^^^^^^^^ In all the discussions about lighting systems, I have not seen this problem mentioned, and I have been wondering why. If you depend on your light to see and be seen, what is supposed to happen when you stop? I've seen it mentioned a few times somewhere. Some systems have battery backups that come on automatically when you slow down. They don't seem to come cheap. |
#6
|
|||
|
|||
In article ,
cyclingturtle writes: Last night I had a very difficult trip back home. I usually night ride in town along well lit streets. Occasionally I do a longer night ride when the weather is good enough. This time I had to come back in pitch dark, through thick fog, on a small countryside road. My powerful and proudly-owned Schmidt generator light was beaming straight into the fog, and it was incredibly difficult to see where the roadside was. Impossible to ride faster than, say, 15 km/h (or less ?). And if I stopped... no more light, totally lost. The last stretch is a fast descent I usually ride around 50 km/h; this time, with about 5 m visibility, I had my hands sore from braking the whole way down, and I was happy I knew the place almost by heart. I wonder if someone here has experience on how to better deal with such situations. I hate fog so much, I'd just as soon stay home and sit it out. I've gone out on foot on foggy nights just to see how well other people's bike lights work in the fog. They don't. Where car taillights are still visible in 3 distances between streetlights, rear blinkies can be completely obscured in half the distance between 2 streetlights. Many other weather conditions can be worked-around, but fog is a particularly tough one to deal with. I don't like the way it can directionally distort sound, either. And I'm especially not comfortable being /really/ invisible because other road users are effectively blinded. Even if you've got the brightest bike headlight in the world, drivers might not be able to see enough other stuff around to get a good sense of depth perception. If you use two headlights, chances are they'll think you're a distant car. Fog sux. Better to stay home and nurse a Tia Maria-spiked mug of chocolate-flavoured Ovaltine, or whatever else is your pleasure. cheers, Tom -- -- Nothing is safe from me. Above address is just a spam midden. I'm really at: tkeats [curlicue] vcn [point] bc [point] ca |
#7
|
|||
|
|||
Leo Lichtman wrote:
"cyclingturtle" wrote: (clip) And if I stopped... no more light, totally lost. (clip) ^^^^^^^^^^^^^ In all the discussions about lighting systems, I have not seen this problem mentioned, and I have been wondering why. If you depend on your light to see and be seen, what is supposed to happen when you stop? Under normal conditions, it's not a problem. First, the most common reason for a cyclist to stop is a stop sign or traffic light. The motorists are going to stop for that, too. As they come to a stop, you'll be visible in their headlights. And you'll be more visible than a pedestrian crossing the intersection, due to your reflectors. Second, many (in the US, perhaps most) cyclists with generator sets use rear blinkies. These are still running and visible. Third, if a cyclist is stopped for any other reason, it's sensible and legal to stop off the road! This is true day or night. It's rare indeed that a cyclist can't do that. -- --------------------+ Frank Krygowski [To reply, remove rodent and vegetable dot com, replace with cc.ysu dot edu] |
#8
|
|||
|
|||
Leo Lichtman wrote:
"cyclingturtle" wrote: (clip) And if I stopped... no more light, totally lost. (clip) ^^^^^^^^^^^^^ In all the discussions about lighting systems, I have not seen this problem mentioned, and I have been wondering why. If you depend on your light to see and be seen, what is supposed to happen when you stop? I didn't mention that both my front and rear lights have capacitors and stay on during 2-3 minutes even if I stop. This is enough to be seen in the vast majority of situations; however, the front light in this case switches from halogen to a diode, and this diode is not strong enough to really illuminate the road, let alone in foggy conditions. |
#9
|
|||
|
|||
Tom Keats wrote:
other people's bike lights work in the fog. They don't. Where car taillights are still visible in 3 distances between streetlights, rear blinkies can be completely obscured in half the distance between 2 streetlights. Many other weather conditions can be worked-around, but fog is a particularly tough one to deal with. I have yet to try it in fog, but I use two taillights: a 7-LED in blink mode, plus a NightSun 3" triangular xenon strobe. And since I share the road with a lot of sleepy drivers, I also wear a reflectorized lime-green construction worker's vest. What I'm not looking forward to about fog is the simple fact that at low temperatures, it can precipitate out and leave the road slicker than a gorilla's fingers. I can take a certain amount of cold and wet, but slick is another story. Bill ------------------------------------------------- | All wealth is power, so power must infallibly | | draw wealth to it by some means or another. | | --Edmund Burke, 1780 | ------------------------------------------------- |
#10
|
|||
|
|||
|
Thread Tools | |
Display Modes | |
|
|