INTRODUCTION

There is a human action from which it’s revealed a part of the logical mechanisms of urban space appropriation: walking. It is true that the introduction of collective and individual motorized transport has altered our perception of the places, on one hand, and the paths that link those places, on the other.
In this sense, the city is the reunion of places that are opposed in their social use and that lend space and time to institutions. These, in return, will turn them into specific places as supporters of their symbolism and practices. Thus, we find that the complex network of paths traveled on foot or in varied transport, determining the logics of mobility, also weave a kind of composite narrative where the history of the city becomes visible.
However, what happens during the day is not identical with what happens at night. And this fact is well understood, for in some way the image of the city, as a collective representation, is built up through the meeting of the impressions that the course of these paths causes in us, its inhabitants. It is that these roads, in the form of streets, avenues, bridges, viaducts, tunnels, etc., are not just channels of circulation. In fact, as semi-architectural elements they articulate the relations between places and give a specific character to the urban space. Nighttime, however, shows us another city that will lend a different meaning to the experience of all its routes. The paths and the act of walking them, the places and the connections between them, the time of the paths and the space traveled, the condition of the inhabitant who becomes a walker - this is what essentially matters to this seminar