Why is it that you only see double-decker buses in England?

The double decker omnibus began service in London in 1829 as a horse-drawn passenger vehicle, the idea of British coach builder George Shillibeer (1797 - 1866) who spotted such transport in Paris. From about 1900 onwards,these vehicles were petrol driven.

The two - deck model had its roots in the days of the stagecoach which carried people both inside the carriage and on top in the open,virtually doubling passenger numbers for one journey. The double - decker bus became popular in London, and then other towns, because in narrow, congested streets it occupies half as much road space as two single - deck vehicles.

For longer journeys, often covering more sparsely populated areas, single coaches were, and are, employed. The first group, called the Green Line transported passengers to and from the capital.(London)

Buses were soon introduced to other countries but because the cities opting to use them are generally not too large and the country journeys longer; the single variety was preferred. In addition, initially most buses were made in the UK and it would have been more expensive to ship out the larger, two - deck version.

Later, two-deck trams and trolley buses were devised, with single ones made for the overseas markets.

So now you know!!!