Daniel Carvalho, Gervasio Santos (p)

The objective of the paper is to analyze the effect of accessibility to employment on population location patterns in the city of Salvador, Brazil, considering different urban transportation facilities. In particular, the paper also investigates the spatial distribution of whites and blacks in this city, based on the relationship between densities and accessibility, in a polycentric spatial configuration of location of employment centers. The research is situated in the empirical context of the urban economy and the economics of accessibility. The identification of the causal effect between population density and accessibility will be carried using a cross-section database by subareas of city traffic, controlling for historical, geographical and location components, as well as the respective application of the instrumental variable estimator. Different methodologies were used to calculate an accessibility indicator, a population density gradient and the generation of an instrumental hydrographic variable based on the location of the river bed of the city of Salvador to solve problems of simultaneity between accessibility and density population. The results showed that the factors of access to employment opportunities had a positive and statistically significant effect on the population density. This applies to blacks and whites, regardless of the technology used, car or bus.

Jong Ho Choi (p), Bong Hyun Jeong

With the advent of the high-speed rail city era, the future economic development speed and scale of KTX(Korea Train eXpress) bullet train are moving around. Currently, the high-speed railway station is seeking three-dimensional use of historical space and linkage with its surroundings in terms of efficient use of the national territory and development of potential. In addition, it is a traffic defect in which passengers and cargo are transported, and it is being combined into various functions such as housing, commerce, and business.
The purpose of this study is to examine the basic theory of the Korea High Speed Rail Transfer Center, and to comprehensively review the problems in the development process, development procedures and development effects. Based on this, the efficient and effective development direction of the high-speed rail composite transfer center is presented and the implications are derived.
The contents of the study understand the basic concept of the high-speed rail transit transfer center, and analyze the present state of railway facilities along with the review of the railway transportation plan, such as the national rail network construction plan. With spatial representation and accessibility of data in mind, Yongsan Station and Dongdaegu Station are limited to case paper. The research method establishes theoretical background, including the development characteristics of the high-speed rail composite transfer center through prior research and literature review. Practical analyses such as railway facilities, transportation systems and economic and social effects are carried out through the preliminary analysis stages, including a comprehensive review of related plans. Through an intensive analysis of the institutional characteristics of the high-speed rail transit center, an in-depth analysis is conducted, including the direction of development and the elicitation of implications.
The research is expected to be used as a reference for the future direction of promoting high-speed railway stations and the regional power areas as the high-speed rail city era is set to take full swing. However, because the unique regional, environmental, and social characteristics of the high-speed railway station differ, there are limitations in drawing up specific development strategies or presenting general results.