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Great Britain road numbering scheme - Wikipedia, the free encyclopedia (1361 words) |
 | With the advent of the motor car and the huge expansion in the numbers and standards of roads, as well as the introduction of a national Highway Code, a coherent numbering scheme was developed, which is still in use in Great Britain today. |
| It was numbered uniquely to give this road perceived importance - it was already known that the A5 road needed no such motorway bypass as this was already the job of the M1. |
| Shorter motorways typically take their numbers from a parent motorway in violation of the zone system, explaning the apparantly anomalous numbers of the M48 and M49 motorways as spurs of the M4, and M271 and M275 motorways as thoser of the M27. |
| Numbering scheme - encyclopedia article about Numbering scheme. (2042 words) |
| The schemes can be considered to be examples of a primary key In database design, a primary key is a value that can be used to identify a particular row in a table. |
| EC numbers EC numbers (Enzyme Commission numbers) are a numerical classification scheme for enzymes, based on the chemical reactions they catalyze. |
| E numbers E numbers are short form definitions for food additives and are usually found on food labels throughout the European Union. |
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