Kent girişi karayolu koridorunun mekansal değerlendirilmesine yönelik bir araştırma

Abstract

This study raised from the assumption that, a highway is not only a means of rapid transportation, but also a corridor space which has its own architectural questions. Therefore, these questions have to be clarified through conceptual analysis of the exprience in rapid motion in comparison to other (historical or contemporary experiences of approaching to a city. It is aimed to achieve a set of 'criteria' which may give a better view on the design of the highway and its relation with the city. Because the contemporary means of travel changed the meaning of 'distance' ' and 'journey' which consequently created a vogueness in the meaning of 'place' and 'city'. In contrast to pre-industrial cities, it is hard to distinguish the 'inside' or 'outside' of the city. The introductory section discusses these impacts created on the exprience of travel in different speeds. The vision in motion is totally different on the highways, than lower travel, let alone pedestrian. The sensation of driving a car is related with the vision in motion through space and this makes a more dynamic impression on the driver/passenger than approaching the city by plane or in the ship. Highways are cutting through every city, and the integration of the highway with the city is not a new problem. But what can be a new question, which is tried to be shown in this study, is the image of the city perceived along the road and its impact on the whole of the city. It's a Fact that not only the newcomers, but the residents are also traveling on highways, from home to work everyday. And it's also a fact that very little consideration is being given to the highway designs and the visual experiences in motion on the highway. But the image of _the city is being reformed everyday, in new organizations by the motion of the perceiver, on highways. In the frame of this study the third chapter aims to investigate differences of the vision perceived by the driver and the pedestrian in motion. The concept is developed on the chosen examples of pre and post- industrial eras, in the context of orientation. In the fourth chapter, corridor space is tried to be analyzed, in reference to concepts of frontiers, gates and entrances. The theories which focused on the role of the developing urban highway network are received. The historical development of city forms show that, highway are active on the sprawl of the city, and this is basic factor creating the environment of the highway which can be put down as,. the freeway and its structures. surrounding natural physical elements vu. surrounding man made physical elements. and the city center. It's also concluded that, the compotion of the design committee, including the planning team, administrative team and engineering team are as determinant on the problem as the spatial elements of the highway corridor. It comes out that it's necessary to make new arrangements on laws for the formation of teams working in guidance. In the fifth chapter, it's tried to be laid down the obtained criteria set, gained from the theories and the design studies which can be used for the designing - administrative - planning mechanism. The findings as a criteria set, concerning the bystander/passenger standpoint, are as follows:. It's a design work to prevent undesirable sensuous effects such as noise, fume and illumination. It's a design work to obtain an integration between the highway and the local characteristics, such as the scale and settlement pattern of the environment.. It's necessary to create a legible joints and clear forms in decision points, avoiding confusing orientation. It's necessary to avoid damage to the historical, natural environment. And to provide the motorist a rich and a pleasant roadscape, it's necessary to provide a space with continuity and rhythm giving sense of progression, development and arrival.