Ministers also want to encourage train operators to install new charging points at railway stations, and have offered the same 75% incentive.

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He points to a Chinese railway being built from Djibouti, on the Red Sea, to Addis Ababa.

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These purchase coins from main cash collection points, such as railway stations and temples, and deliver them at the customer's doorstep for a fee.

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Further north on the new East London railway, Mr Noble points to more examples of the amazing quality of Victorian builders' work.

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He points to the Norte-Sul railway as evidence.

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But as it is a single railway line, with only four passing points, there is a limit of about 25 trips to the summit a day.

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