1990年 서울特別市 O/D資料를 利用한 重力模型適用에 關한 研究
(주)학지사
- 최초 등록일
- 2015.03.25
- 최종 저작일
- 1996.01
- 14페이지/ 어도비 PDF
- 가격 4,300원
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서지정보
ㆍ발행기관 : 대한교통학회
ㆍ수록지정보 : 대한교통학회지 / 14권 / 1호
ㆍ저자명 : 任聖彬, 李富遠
목차
ABSTRACT
Ⅰ. 序論
Ⅱ. 資料分析
Ⅲ. 重力模型의 構造
Ⅳ. 重力模型의 適用 및 檢證
Ⅴ. 結論
參考文獻
영어 초록
Among trip distribution models, The BPR type Gravity Model is the one which is the most widely used. The key issue associated with this model is a functional form of friction factor which should be calibrated in the process, and interpretation for socioeconomic factor known as K-factor(Kij) which is used to adjust the difference between observed zone-to-zone trips and the estimated trips
In this study, the BPR type Gravity Model has been fitted to 1990 O/D data for Seoul. Two type of function form for friction factor has been employed: one is a form of Generalized function and the orther is UTP function. With above two functions, the parameters for travel distance(Skim-tree) are prepared. The relationship between socioeconomic factor and trips is identified by calculating and analyzing the characteristics of Kij.
Consequently, both of the friction factor functions are statistically signified. However, it shows an overestimation tendency when estimated with UTP function. It is found that the Generalized function is suitable for the city of Seoul, and also, in case there are a lot of trips correlatively, the socioeconomic factor is close to 1, on the other hand if it’s small, it shows a bias which is dispersed around 1.
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