Mathematical models predict how we wait in line, traffic
(PHYSorg.com Mathematics)

As New Jersey drivers approach the George Washington Bridge to enter New York City, a digital sign flashes overhead with estimates of the delays on the upper and lower levels of the bridge. Most drivers choose the level with the shortest predicted wait. But a few savvy drivers choose the other level, expecting that the digital signs are lagging and that conditions will change by the time they arrive at the bridge.