文摘
Highway construction investments have diverse effects, including direct effects on the users, such as the reduction of travel time, car operation, and traffic accident costs, and indirect effects such as balanced regional development, regional economic development, and employment creation. Of these effects, the direct-employment-creation effect of South Korea’s expressway construction investments was analyzed in this study, with the use of actual data. To examine the effects of expressway construction investments, the expressways were reviewed by category. It was found that the expressway length and investments as well as the traffic volumes on the expressways steadily rose until 2008 and slightly declined thereafter. The traffic volume per travel distance was also reviewed, and it was found that 56% of the expressway users covered a distance of under 40 km, which suggests that they used other transport means to travel over longer distances. Regarding the traffic volume trends per line, the opening of the Korea Train Express (KTX) did not significantly affect the use of expressways. The expressway construction sections, population trends, wholesale and retail sales, and regional gross product trends were also analyzed, and the results of the analysis suggest that expressway construction contributed to balanced regional development. In this study, to determine the direct-employment-creation effects of expressway construction investments, multiple-regression analysis of data regarding 68 expressway sections was conducted. The creation of direct employment means the employment of manpower input directly to the works regarding the construction and maintenance of an expressway, so the employment can be determined clearly through the construction of an expressway. The results of the analysis indicated that the country’s KRW 1 billion worth of expressway construction investments created 7.27 full-time jobs.