Another example of cascading car crashes in the Sacramento area, due to poor visibility in the fog. Once again, the accident scene is the I-5 Bridge over the Sacramento River, between Woodland and Sacramento (a bridge I frequent).
When I lived in Salt Lake City, we tried liquid CO2 seeding of supercooled fogs, to alleviate visibility near highways. Unfortunately, the winter of 1988-89 wasn't very foggy, so the method didn't get a good workout at that time, but it did seem to show some promise. In any event, since the temperature has to be below freezing for the method to work, it won't work in balmy Sacramento. I'll have to post more on this strange project....
Here is a sketchy list I assembled of other fog crashes:
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