In Le Corbusier’s work the threshold is represented like a revealing and enigmatic space that define the relations of the limit or boundary, the separation and the union between the buildings and the urban spaces, and the space that defines, qualifies and characterises the minimum condition of urbanity of any work of architecture, irrespective of its use or scale. Through an analysis of the draws based on the study of the six notebooks of The Voyage d’Orient (1911), and of the study of the urban settings visited, we verified that the threshold is, for Le Corbusier, a space or sequence of spaces organised under the idea of “plan” of variable thickness or extension, that includes both criteria and guidelines of order as well as solutions for managing the limits or boundaries in architecture, as well as its relation with space and the involvement with its surroundings, that is to say, we have also focused on highlighting how the architecture in itself, attends to an order that as well as being articulated and unitary, is extended by means of doors, frames, courtyards, terraces, sheds and exterior spaces, that incorporate both the nearby urban landscape as well as the distant cityscap
The relationship of Le Corbusier with the street is complex and sometimes contradictory. Young Jeanneret seems to be persuaded by certain sites, which we may define as urban scenarios, during his visits to cities like Istanbul in his formative years. Unlike his hometown La Chaux-de-Fonds – identified by a regular set of streets – these places may have been a picturesque counterpoint activated by a significant topography. Streets meandering along a set of ‘Dom-ino’ houses in the Oeuvre Complète, as the tracking rails of a long shot recording, offer a changing viewpoint that may be considered in relation with such casual arrangements. The claim to kill the ‘rue corridor’ made in Précisions, together with his later writings, deeply contrast with his own comments on an empty Paris in the summer of 1942 – as published in Les Trois Établissements Humains – praising the same streets he pretended to erase by means of operations like the ‘Ilôt Insalubre No 6’. The objective of this paper is to highlight and discuss those contradictions, which can be illustrated by the technical machine-streets conceived for the Ville Contemporaine of 1922 versus the V4 streets formulated in 1947 to reconcile with traditional streets.