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  3. Driverless trains are a type of train first developed in the 1960s. As the name

Driverless trains are a type of train first developed in the 1960s. As the name

游客2023-10-17  42
问题 Driverless trains are a type of train first developed in the 1960s. As
the name shows, these trains operate automatically, without a driver.
It is believed that any of the earliest driverless trains were first 【M1】______
used to transport passengers on the London Underground system 【M2】______
from 1967. However, these early trains weren’t true ’driverless’ 【M3】______
because they had no operators to open and close the doors. 【M4】______
Modern driverless train systems such as the Dubai Metro have
no operators on board. Instead, the system is run through large control 【M5】______
centre. This has hundreds of CCTV camera so that the trains can be 【M6】______
monitored at all times.
Using driverless trains can save a lot of money because large
numbers of train drivers are no longer need. As well as being cheaper to 【M7】______
run, these train systems are often much less punctual and efficient. 【M8】______
This encourages more commuters to stop use cars in order to get to 【M9】_____
work every morning.
If more cities had efficient driverless trains for transporting commuters,
there would be less traffic congestion and pollutions in the world. 【M10】______ [br] 【M2】
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