Ciudades irradiantes, ciudades itinerantes Tensiones del desarrollo en el habitar urbano

This article aims to highlight the tensions between urban planning and social phenomena, when developed in a disjointed way their daily realities. This antagonism arises, from two metaphors: the radiant look: Planning and the roving look: social reality, that relate to specic events in dierent cities. It also proposes that such contradictions are generated when planning is linked to development paradigms based on growth and exploitation of life. These arguments are supported by various investigations carried out since 1992 in the Research Group on Environmental Thought of Colombian National University. As a particular case, we based in a research conducted in the period 2011 - 2012, with the support of Colciencias, which has its specic context in Manizales city. In this research we studied the two dimensions of the radiant look and itinerant look, in terms of the official uses and informal uses of the street (Carrera 23 of the Manizales city).