General Discussion
In reply to the discussion: Photos: Thousands stranded in 20-hour commute as minor snowstorm hits Atlanta [View all]Glitterati
(3,182 posts)It's really very simple - no PLAN can prevent jackknifed tractor trailers.
Atlanta's highways are built with many, many elevated ramps. Look up spaghetti junction in Atlanta for what I mean.
http://en.wikipedia.org/wiki/File:Spaghetti_junction_atlanta_georgia_i85_sb.jpg
On the very rare occasions that we get snow or ice, these elevated ramps freeze solid. There's seriously nothing more frightening than sitting behind an 18 wheeler and watching it slide all the way across that ramp, all the while thinking it's going to crash through the guardrail on the traffic below.
Once that 18 wheeler stops, it's jackknifed, stopping all further access to that ramp.
While spaghetti junction is the worst, the highways in Atlanta are threaded with these elevated egress/access ramps all the way through.