Social Mavericks on Instagram: "This demonstrates what traffic looks like wher coordination replaces chaos. n China, drivers consistently execute a textbook zipper merge, each vehicle alternating preciselv at the point where lanes narrow, instead of forcing early merges or blocking lanes. The outcome is smoother flow, fewer abrupt stops and dramatically reduced congestion. Traffic engineers have studied this behavior for years. Proper zipper merging can cut delays by up to 40 percent by fully ut