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확률적인 중방향 설계시간 교통량 산정 모형에 관한 실험적 해석

Title
확률적인 중방향 설계시간 교통량 산정 모형에 관한 실험적 해석
Other Titles
An Experimental Analysis of a Probabilistic DDHV Estimation Model
Author
김성호
Keywords
확률적인 중방향 설계시간 교통량; 설계시간계수; 중방향계수; 적정 설계순위; 확률분포함수; Probabilistic Directional Design Hour Volume; Design Hourly Factor; Directional Distribution; Acceptable Design Ranking; Probability Distribution Function
Issue Date
2009-04
Publisher
대한교통학회
Citation
대한교통학회지, v. 27, NO. 2, Page. 23-34
Abstract
본 연구는 전통적인 중방향 설계시간 교통량의 문제점을 개선하기 위해 양방향 교통량이 아닌 중방향 교통량에 따른 링크통행시간의 확률분포개념을 도입하여 확률적인 중방향 설계시간 교통량(PDDHV) 산정 모형에 대한 실험적 해석을 수행하였다. PDDHV산정에 대한 실험적 결과를 토대로 적정 설계순위를 2차로/4차로에 대해 16개의 확률분포형을 대상으로 최우도법을 이용하여 매개변수를 추정하였으며, 적합도 검정은 Kolmogorov-Smirnov 검정을 적용하였다. 적정 설계순위 확률분포형은 2차로도로는 Beta General분포, 4차로도로는 Weibull분포가 가장 적합한 것으로 나타났다. 차로별 적정 확률분포형에 대해 누적분포함수의 역함수를 이용하여 설계서비스수준 D에 따른 적정 설계순위를 산정한 결과, 2차로는 190 순위, 4차로는 164 순위로 도출되었다. 또한, PDDHV 산정에서 새롭게 제시한 계수에 대한 적정값은 2차로도로 경우 PK계수는 0.119(0.100~0.139), PD계수는 0.568(0.545~0.590)이며, 4차로도로 경우 PK계수는 0.106(0.097~0.114), PD계수는 0.571(0.544~0.598)로 도출되었다.;This paper is described as an experimental analysis for the probabilistic directional design hour volume estimation. The main objective of this paper is to derive acceptable design rankings, PK factors, and PD factors. In order to determine an appropriate distribution for acceptable design rankings, 12 probability distribution functions were employed. The parameters were estimated based on the method of maximum likelihood. The goodness of fit test was performed with a Kolmogorov-Smirnov test. The Beta General distribution among the probability distributions was selected as an appropriate model for 2 lane roadways. On the other hand, the Weibull distribution is superior for 4 lanes. The method of the inverse cumulative distribution function came up with an acceptable design ranking of design for LOS D. An acceptable design ranking of 2 lanes is 190, while an acceptable design ranking for 4 lanes is 164. The PK factor and PD factor of 2 lanes was elicited for 0.119 (0.100-0.139) and 0.568 (0.545-0.590), respectively. On the other hand, the PK factor and PD factor for 4 lanes was elicited as 0.106 (0.097-0.114) and 0.571 (0.544-0.598), respectively.
URI
https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE07500900https://repository.hanyang.ac.kr/handle/20.500.11754/183072
ISSN
1229-1366
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > TRANSPORTATION AND LOGISTICS ENGINEERING(교통·물류공학과) > Articles
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