The study compares busy streets with the ones that are not and finds out what makes people think the street is busy. Based on this comparison and analysis, the study reflects on measures to make streets busy. First of all, busy streets are classified into three parts: shopping zone, business zone, and the combination of the two. The study analyzes whether the street is busy due to the certain system or structure of the street or it is busy due to certain design of the street, and the analysis is done in those three categories mentioned above. The research was carried out in busy streets with similar characteristics in both Korea and Japan. Physical factors that turn ordinary streets into busy ones are focused and analyzed. The visual perception is analyzed. As a result, similarity and difference between designs of physical factors of streets in both countries are discovered. Ideal arrangement and design of physical factors that contribute to the making of busy streets are also found. Based on these data, design that makes busy streets with different characteristics is presented here.