일반국도 설계시간계수의 적정 확률분포 선정 및 추정The Selection of Optimal Probability Distribution and Estimation for Design Hourly Factor in National Highway Roads
- Other Titles
- The Selection of Optimal Probability Distribution and Estimation for Design Hourly Factor in National Highway Roads
- Authors
- 조준한; 김성호; 한종현; 이병생
- Issue Date
- Oct-2006
- Publisher
- 대한교통학회
- Keywords
- AADT; Design Hourly Factor; Probability Distribution; Maximum Likelihood Estimation; Chi-Square Goodness-of-Fit Test; 연평균일교통량; 설계시간계수; 확률분포; 최우도법; 카이제곱 적합도검정
- Citation
- 대한교통학회지, v.24, no.6, pp 33 - 43
- Pages
- 11
- Indexed
- KCI
- Journal Title
- 대한교통학회지
- Volume
- 24
- Number
- 6
- Start Page
- 33
- End Page
- 43
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/45145
- ISSN
- 1229-1366
2234-4217
- Abstract
- 본 연구는 도로의 기능 및 통행특성, 차로수, 연평균일교통량 등을 고려하여 설계시간계수와의 관계를 살펴보고 적정 확률분포형 선정과 K값을 추정하였다. 이를 위해 2005년도 상시 교통량 조사지점에서 수집된 교통자료를 이용하여 14개의 확률분포형을 적용하였다. 각 확률분포형은 최우도법을 이용하여 매개변수를 추정하였으며 각 분포형별로 매개변수 적합성 조건을 검토하였다. 적정 확률분포형의 결정은 chi-square검정을 통하여 대상 분포형의 기각유무를 판단하였으며, 그 결과에 대해 우선순위를 정하여 적정 확률분포형을 선정하였다. 그리고 각 유형별 AADT에 따른 적정 K계수를 추정하였다. 그 결과, 지방부 2차로 및 4차로, 도시부, 관광부도로의 적정 확률분포형은 각각 Pearson V, LogLogistic, LogLogistic, Extreme value 분포로 분석되었으며, 적정 K계수는 각각 0.1~0.2, 0.09~0.14, 0.07~0.13, 0.1~0.2로 추정되었다.
This research is to the selection of optimal probability distribution as well as the estimation for design hourly factor in consideration of traffic characteristic, such as road function, lane number and AADT. To accomplish the objectives, we are applied to various probability distribution using traffic data that observed at permanent traffic count points in 2005. The parameters of the selected 14 probability distribution were estimated based on the method of maximum likelihood and the validity condition of the estimated parameter. The goodness-of-fit test, such as chi-square test, was performed as well as the estimation of design hourly factor. As a result, An appropriate distributions of each case were selected : Pearson Ⅴ for two lane of rural roads, LogLogistic for the four lane of rural roads, LogLogistic for the urban roads, Extreme value for recreation roads. And optimal K factor are as following : 0.1~0.2 for two lane of rural roads, 0.09~0.14 for the four lane of rural roads, 0.07~0.13 for the urban roads, 0.1~0.2 for recreation roads.
- Files in This Item
-
Go to Link
- Appears in
Collections - COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF TRANSPORTATION AND LOGISTICS ENGINEERING > 1. Journal Articles

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.