Manual on Uniform Traffic Control Devices (MUTCD)
US standard requiring conflict monitors
Episodes
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#4810: How a Stop Sign Gets Bought: B2B Procurement DecodedFollow a stop sign from Hartford's need to a DOT depot — and learn why B2B pricing has no catalogue price tags. -
#4806: The Vest That Saves Road WorkersHow a fluorescent vest and thirty years of standards cut highway worker deaths — and why smartphones are reversing the gains. -
#3956: The Four-Second Crossing: How Traffic Lights Actually WorkA Jerusalem crossing gives pedestrians 4 seconds for 12 meters. The hidden safety systems most people never see. -
#3955: The Hidden World of Highway SignsWhat goes into making a road sign? Aluminum, reflective sheeting, and a global treaty most drivers have never heard of. -
#3954: The Surprising Chemistry of Road PaintRoad markings are optical devices engineered to survive 10,000 trucks a day. Here's how they actually work.