Meanwhile, the blue gantries, now a symbol of people power, still merrily light up the Gauteng night sky.

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Electronic signs will also be mounted on verges and gantries displaying variable mandatory speed limits and information to warn motorists about incidents, lane closures or conditions ahead.

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The Highways Agency said installing new gantries across the motorway on Friday and Saturday night involved contractors working at heights of more than 14m (45ft) and full closures were necessary to ensure their safety.

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The Automobile Association urged members not to sign up for the so-called e-tags, which provide for toll discounts but also allow bank accounts to be charged every time a car passes under one of the gantries.

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But the BBC Radio Scotland stalwart, after quarter of a century perched on stadium gantries describing Scotland's best efforts on the rugby field, is not seeking "just" a trio of triumphs by the Scots in the autumn Tests.

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