On 29/01/2018 12:38, Lester Caine wrote:
UK post codes are based on the postmans walk, so follow the footpaths that a postman can follow to deliver mail. Yes a street may have a different postcode on each side, and long roads are broken down into smaller blocks each with it's own postcode. One rule for postcodes is that each will only cover one primary street name and so ignoring the 'postal address file', postcodes ARE essentially a list of streets.
For residential streets, that's generally true (although there are exceptions). It's not at all a reliable guide in commercial areas, though, where a significant number of properties will have large user postcodes of their own.
Mark _______________________________________________ Talk-GB mailing list Talk-GB@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-gb
