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(Background and Purpose)The purpose of this thesis is to provide quantitative analysis on the reasoning behind why some streets are more preferred by pedestrians for walking. The character of space is defined by stationary architectural buildings and moving objects within the space. The energy of an object is divided by potential energy and kinetic energy. Architectural buildings have potential energy, and people or cars that are moving have kinetic energy. These energies are combined to determine the total energy of a certain space. A major element of defining kinetic energy is the speed of the cars or people that are moving in the space. This is called “spatial speed,”which means the character of a space created by the speed of moving objects. In this thesis, the characteristics of space will be discussed in terms of speed, and the physical characteristics of a certain street space will be defined by quantifying the“spatial speed.”The aim of the study is to prove that a relationship exists between the speed of the street and pedestrians’ preferences for that street, in order to design streets to which people will be easily attracted. (Method)To determine the speed of a space, 120 meter sections of five major streets in Seoul, Korea were selected; these streets were considered to clearly define the characteristic of streets. Next, the average speed of moving objects in each space was examined. The speed values were 1km/h for the deck and parking lot, 4km/h for sidewalks, 60km/h for the Teheran-ro, and 10 km/h for the back street of Hongdaeap Rd. The space within the 120 meters of streets was categorized as roads, pedestrianroads, decks, and parking lots. These spaces were then drawn on an arrangement chart and the area was calculated. The spatial speed was calculated by dividing the product of the area and the average moving speed inside the area by the total area. The product of the area and speed divided by the total area is spatial speed. The unit of spatial speed is SS. (Result)The SS values of target area are as follows: Hongdaeap Rd. (4.86 ss); Shinsa-dong Garosu-gil(5.41 ss); Myungdong (6.5 ss); Gangnam Daero (47.9ss); and Tehran-ro. (52.03 ss). The streets for which the SS value is close to the normal pedestrian’s speed are the streets on which pedestrians prefer to walk. According to this study, Tehran-ro is 10 times faster than the Garosu-gil in terms of spatial speed. (Conclusion) Since the physical figures of the street preferred by pedestrians can be predicted, they can be used to define the character of space when designing cities.

The Correlation Research on The Spatial Speed and The Preferred Pedestrian Paths