Imagine your city is like a big toy car track. When too many cars come in at the same time, it gets stuck and can't move properly. To fix this, cities build more roads or add traffic lights so cars take turns to go through the track. Sometimes they even make special lanes for buses or bikes to help everyone get where they need to go faster.
Examples
- A city adds a new road so more cars have space to go through.
- Traffic lights in busy areas change timing so fewer cars get stuck waiting.
- Buses are given special lanes so they don’t stop for every red light.
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See also
- How Did Paper Money Become a Symbol of Wealth?
- How Did ‘Money’ Evolve from Barter to Coins and Banknotes?
- How Did Paper Money Begin?
- How Did the Idea of ‘Currency’ Evolve Over Time?
- How Did the Idea of ‘Currency’ Change Over Time?
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