Purpose The purpose of this paper is to analyze the characteristics of closed car-sharing services and present the relevant factors to provide reasonable service locations. Car-sharing service locations have been arranged to allow customers to easily access locations. However, the particular car-sharing service in this study, enforced through an agreement between residents of the House of Commons, is operated as a closed service, limited to public housing residents. This closed car-sharing service in the House of Commons differs from typical services in that, after use, the users return the vehicle to the same parking location. In addition, determination of the general car-sharing locations is based on the profits of the service operator. The service can be stopped as there are a number of other alternatives for mobility. However, if the closed car-sharing service in the House of Commons is canceled, there is no other alternative for existing users. Therefore, the site selection for the initial introduction of the House of Commons in a closed car-sharing service is a very important issue. Design/methodology/approach This study uses nine months of data from 39 complexes for location analysis for public housing residents in urban areas. The LH Happy Carsharing is a closed private service, used by people residing within approximately 50 rental LH-apartment complexes. As closed car sharing is unfavorable in comparison to other car-sharing services, it is important to demonstrate that the service can succeed in securing a sufficient amount of users. To analyze the viability and usage of the service, the authors have considered ten potential variables. Findings On the basis of the regression analysis result, the adopted significant variables are the number of households, the percentage of residents in the 40’s age group and the number of households with registered vehicles. Originality/value In general, for car-sharing research, specific user groups are not generally identified. However, LH Happy Carsharing is specifically targeted to residents in rental apartments. The LH Happy Carsharing is a private service, used by people residing within approximately 50 rental LH Apartment complexes. Since closed carsharing is unfavorable in comparison to other carsharing services, it is important to demonstrate that the service can succeed in securing a sufficient amount of users. Therefore, this study aims to analyze the characteristics of private carsharing and present the relevant factors to provide reasonable service locations.

The world has been replacing fast fossil fuels vehicles with electric vehicles(EVs) to cope with climate change. The government set a goal which EVs will be substitute at least 10% of the domestic small vehicles with EVs until 2020, and will try to build electric charging infrastructures in apartments with the revision the law of 'the housing construction standards'. In apartments the EVs charging infrastructure and parking space is, essential to accomplish the goal. But the studies on EVs demand are few. In this study, we predicted that the demand for EVs using time-series analysis of statistical data, survey results for apartments residents in the metropolitan area. As a result, the ratio of the EVs appeared to be 6~21% for the total vehicles in a rental apartments for the years 2020, 21~39% in apartments for sales. For the EVs, the maximum power required for 1,000 households in rental apartment is predicted to be about 4200 kwh on a daily basis, while the maximum power in the apartment for sales is predicted to be 7800kwh.

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