Reliability Assessment of Urban Road Network System by GO Methodology

2009 ◽  
Author(s):  
Zhiyun Zou ◽  
Xinsheng Song ◽  
Zhonghai Jiang ◽  
Jiejiao Yang
Keyword(s):  
Road Network ◽  
Reliability Assessment ◽  
Network System ◽  
Urban Road Network ◽  
Urban Road ◽  
Go Methodology

PEAK HOUR FACTOR AT URBAN ROAD NETWORK SYSTEM WITH FIXED HOURLY INTERVAL AND MOVING HOURLY INTERVAL (A CASE STUDY AT URBAN ROAD IN CIMAHI CITY)

2020 ◽  
Vol 6 (01) ◽  
pp. 29
Author(s):  
Hendra Hendrawan
Keyword(s):  
Urban Areas ◽  
Road Network ◽  
Resource Constraints ◽  
Important Variable ◽  
Network System ◽  
Urban Road Network ◽  
Hourly Interval ◽  
Urban Road ◽  
The Road

The Peak Hour Factor (PHF) is an important variable for determining road capacity. The value of PHF will vary greatly depending on location characteristics and classification of road functions. This study aims to obtain the estimated value of PHF in the urban road network system with variations in the classification of functions and types of roads. In addition this study also aims to obtain a method of approaching the PHF value near to fluctuations in traffic flow which has limited resources for surveys based on the duration specified in the traffic survey guidelines in Indonesia. The method used is descriptive statistical analysis and parametric test using Independent T sample test. The PHF is calculated based on Fixed Hourly Interval and Moving Hourly Interval and their inverse. The results of the study show the value of PHF in the road network system in urban areas for variations function and type of road that is in the range of 0.79 to 0.98 with an average of 0.91. Other findings show that the inverse method of Moving Hourly Interval can be used as an approach to obtain the PHF value under conditions of resource constraints

Restoration Strategies of Urban Road Network after Earthquake Based on Corrected Component Probabilistic Importance

2014 ◽  
Vol 694 ◽  
pp. 95-101 ◽  
Author(s):  
Ju Liang Yuan ◽  
Ya Dan Yan ◽  
Di Huang ◽  
Chao Du
Keyword(s):  
Monte Carlo ◽  
System Reliability ◽  
Road Network ◽  
Quantitative Information ◽  
Network System ◽  
Urban Road Network ◽  
Component Reliability ◽  
Urban Road ◽  
Reliability Improvement ◽  
Restoration Strategies

Based on the impacts of the earthquake on the urban road network system reliability, this paper defined the blockage related effects. An idea about how to quantitatively calculate the impacts is proposed. And Monte Carlo-based algorithms to study the system reliability and element probability importance are constructed. The component probabilistic importance is used to imply probabilistic contribution of improving component reliability to that of system reliability; while the corrected component probabilistic importance can be used to analyze the effects of the component reliability improvement on the gain degree of the system reliability, which can further provide quantitative information to develop strategies for the restoration of urban road network after the earthquake. Finally, a real urban road network is taken for example to verify the feasibility and applicability of the proposed method.

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