The road has four principal axes to stay no more than 3 miles (4.8 km) from the River Thames to run from Central London upstream to Bisham, Berkshire which faces the town of Marlow across the river, explaining its four main orientations.

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This sentence needs to be put into English. — Preceding unsigned comment added by 86.136.228.205 (talk) 12:59, 18 April 2018 (UTC)Reply