Traffic in the next 100 years will have traffic on the streets, in the sky and under the water. The road on the ground will be used for heavy vehicles and road in the sky. The car can move freely without any driver. Trains can be sailed by a superior speed, the speed of the sound wave, and there are trains all over the city and the countryside. There is surfing the universe with space elevator. There is a traffic tunnel under the water for car and train. Traffic on the ground and to build bridges will become unnecessary. Traffic is better. There are no problems with pollution, weather will be better than the present.
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