Roche's levels of location Roche mentions are:

- the inernational level:

-> multi annualy

-> purpose: competition, outward representation

- national level

-> annually

-> purpose: promote identification with the state/ political system 

- urban/ community level

-> usually annual

-> expression of identity 

The reasons he provides are actually factors of ascending or descending  importance, depending on the point of view. They represent a chain of influence.

person->nation/history->culture (international)

culture->nation/history->person

On the other hand history and culture both influence a person's perception of his life by helping him to 'mark' his course of life. 

history-> person <-culture

The sociological dimensions do not fit in there, they are on another level.

The modern/non -modern dimension of mega-events:

Modern mega events emphasize modernity. In order to illustrate the change (as opposed to how things have been before), they have to refer to past times too. 

The national/non national dimension of mega-events:

Involving several nations, 'mega -events' are inter- and even 'supernational'.

They are national to the extent that they are an arena for the host nation to represent itself in means of power and ideology.

The local/non-local dimension of mega-events:

'mega-events' are local because they provide a role model for the city of the future (technology, architecture) and  they are non-local/cosmopolitan because of extensive media coverage the whole world is able to participate.