• KSCE Journal of Civil and Environmental Engineering Research
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• v.41 no.6
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• pp.707-714
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• 2021

An important factor that causes delays at roundabouts is unbalanced traffic conditions. The majority of domestic studies have tendedto focus on the proportion of entering traffic rather than conflicting traffic in order to explain unbalanced traffic conditions. Also, there is scant research on the proper distance between a signalized intersection and a roundabout. In this study, therefore, unbalanced traffic conditions and optimal distance between two intersections were analyzed using SIDRA software based on the Gajwa-ro roundabout in Icheon, where unbalanced traffic conditions occur during afternoon peak hours, and its position is 295 m from a signalized intersection. It was found that a state of unbalanced traffic conditions in the form of conflicting traffic caused delays at Gajwa-ro roundabout, and the queuing length on each approach was removed when there was 850 m of distance between two intersections.

• Journal of the Korean association of regional geographers
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• v.3 no.1
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• pp.81-98
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• 1997

This treatise made a general survey of the welfare policy in our country, and examined the present condition of welfare facilities and distributional trait in Taegu, setting the limits of welfare to welfare facilities. As the result, I could get conclusion like this. First, the present condition of welfare facilities in Taegu exceeds the national average value. Second, the distribution of housing facilities generally corresponds with the distributional area of low-income class and has an unbalanced distributional trait. Third, public facilities are distributed in periphery of the city and we can see they are regarded as loathsome facilities. Lastly, most of the welfare facilities except welfare house are small-scale and worn-out and also petty because they are run by individuals. With basis on this result of the research. I want to make these suggestions. That is, the improvement in quality than in quantity must be made. In addition, until now welfare facilities have restricted users, but from now on they must be converted to public services for most of a nation. To realize those things, welfare facilities must be located in the site where traffic is convenient and medical facilities are neighboring. In conclusion, the socialization of welfare facilities must be carried out.