How Design Speeds Dictate Posted Speed Limits.
Speed limits are determined by a large variety of factors, some by metrics that are rather old fashioned.
Highway Design 📍
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Why West Coast Drivers Say ‘The’ Before Their Highway And Road Numbers.
I've always though they should go back to the named expressways -- like the Riverfront Route (I-787) or the Northside Route in Albany (I-90) or Albany's Crosstown Expressway (NY 85), which where the names of the expressways before formal interstate numbers where given to them upon their competition.
1940 Tacoma Bridge.
Today is National Stress Awareness Day.
One stress that effects nearly every part of our world is harmonic resonance, which can have disastrous results on infrastructure and other manufactured products if engineers don't fully account for it.
Learn more about fundamental and harmonic frequencies:
http://hyperphysics.phy-astr.gsu.edu/hbase/waves/funhar.html
A Love Story.
Figuring the Interstate Highway system and mass-motoring probably has twenty years before cheap oil runs out for good, it doesn't seem wise to be making investments in incredibly complex superhighways.