Uploaded on 2014-11-11 by Dianaceballos2488

**The historical centers** ![ingrese la descripción de la imagen aquí][1] **The historical centers** are a core value of permanent heritage of cities and towns. Historic centers are present throughout the evolution of cities and many human generations. Rescuing the history and memory of the cultures. Usually historic centers are a group of traditional building and shows the typical construction practices also buildings where the administrative activities of the cities are developed, so we take should be discussed as a constant value and very important aspect for urban planning and analysis city models. STOCKS **Neighborhood centralities** ![ingrese la descripción de la imagen aquí][2] I believe the **neighborhood centralities** has to be considered as stocks of city, in these places the most important activities of the inhabitants are developed. These places will eventually become important places in the development of cities In Medellin, my city, these places are being improved because the communities are demanding interventions in the space for them means meeting and memory. Initially these centralities are considered as emerging centralities but then become an important values for a city and also around them the commercial activities and transport has life FLOWS **Informal Trade** ![ingrese la descripción de la imagen aquí][3] The new and unstable forms of labor are flows city. They are constantly changing and are directly related to employment and unemployment rates. It is directly related to the lifestyle of the inhabitants and generates changes in assets and liabilities schedules cities (day and night). The informal trade jobs are underpaid and unstable. On the other hand, **the informal trade** is based on the fashion merchandise, so it is marked by the weather, fashion, implements necessary for those small-scale THINGS THAT EVERYONE SHOULD HAVE AS AN UMBRELLA or what people consumed most often as gum or candy. The number of vendors in informal trade depends on many variables; products, spaces and centers around the main means of transportation. [1]: https://edxuploads.s3.amazonaws.com/14156671117168682.jpg [2]: https://edxuploads.s3.amazonaws.com/14156671238413322.jpg [3]: https://edxuploads.s3.amazonaws.com/14156672011061549.jpg