Page 38 - Volt Elevate The World Around Us Book 4
P. 38

In big cities where roads are crowded, flyovers and over-bridges are very useful. They

            save time and reduce accidents. People can go from one side of the road to the other
            without stopping the traffic below.





















                                     flyover                                   over-bridge


                Action Station

              Imagine that your school is on one side of a very busy road. Write a few lines about how an
              over-bridge would help you reach safely.

                                                                                                      Apply


            Tunnel and Subway

            A tunnel is a path built under the ground, mountains or water. Vehicles can move through

            it to avoid going over hills or around places.
            A subway is an underground path for pedestrians or for metro trains. It helps people

            cross roads safely or travel through busy areas without getting stuck in traffic.




















                                     tunnel                                      subway


            Subways and tunnels are commonly seen in big cities and hilly areas. They save time,
            reduce road traffic, and protect people from weather and accidents.




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