Traffic on roads consists of road users including pedestrians, ridden or herded animals, vehicles, streetcars, buses and other conveyances, either singly or together, while using the public way for purposes of travel. Traffic laws are the laws which govern traffic and regulate vehicles, while rules of the road are both the laws and the informal rules that may have developed over time to facilitate the orderly and timely flow of traffic.
Precedents are not mere dusty phrases, which do not substantially affect the question before us. A precedent embalms a principle. The principle may be right or may be wrong—that is a question for discussion; but at the first glance it is right to conclude that it is a principle that has been acted upon and recognised by those who preceded us.
Benjamin Disraeli, Speech in the House of Commons (22 February 1848)
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