Estimation of Critical Headway at Small Urban Roundabout
Before choosing an intersection project design, an important step is to examine the justification of the construction on the basis of defined criteria. One of the key criteria is the analysis of capacity.
Danijela Maslać +2 more
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Critical headway and follow-up time analysis at two-lane roundabouts [PDF]
Design of urban intersections, as well as the traffic control design on them requires the development of methods of capacity, traffic delays and queues estimation.
Karimov Navruz Mirzorahimovich +2 more
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Comparative Analysis of Critical Headway Estimation at Urban Single-Lane Roundabouts
According to models commonly used in practice, the capacity of roundabouts largely depends on the value of critical headway. The value of critical headway depends on the characteristics of vehicles, driving conditions, and geometric characteristics of ...
Dunja RADOVIĆ +2 more
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Study on Merging Sign Installation in Work Zone of Expressway based on Changeable Critical Headway
AbstractThe purpose of this research was to consider the vehicles’ changeable critical headway when driving along the upper work zone, and reducing conflicts and risks by merging in the end of the warning area, via installation of merging signage. A merging probability model was established by differential methods according to the M3 model and headway ...
Zhou, Xiao-huan +3 more
exaly +3 more sources
Predictive modeling of critical headway based on machine learning techniques [PDF]
Due to the impossibility of directly measuring of critical headway, numerous methods and procedures have been developed for its estimation. This paper uses the maximum likelihood method for estimating the same at five roundabouts, and based on the ...
Radović Dunja M., Stojčić Mirko D.
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Critical intervals and queue intervals at two-lane roundabouts
Over the past decade, a number of manuals have been developed for rural road roundabouts in the Russian Federation. However, two- and three-lane roundabouts are designed and operated in cities of the Russian Federation do not yet have manuals that take ...
N. M. Karimov, A. Yu. Mikhailov
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Comparison of Procedures to Estimate Critical Headways at Roundabouts
The capacity analysis of roundabouts in Portugal is mostly done using the UK regression method. Due to its empirical and non-explanatory nature, this method has some limitations, particularly for studying innovative layouts, which has recently motivated ...
António Luís Pimentel Vasconcelos +2 more
doaj +4 more sources
A car-following model of CAVs integrating state information from multiple leading and single following vehicles [PDF]
To uncover the root causes of congestion in traffic flows involving connected and autonomous vehicles (CAVs) and improve stability, the multi-leading and single-following vehicles state information car-following (MLSFICF) model for CAVs is introduced in ...
Yongsheng Chen, Guozhu Cheng
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Modeling Critical Gap of Al Turkmani Roundabout in Baghdad City [PDF]
Interest in how roundabouts can most effectively be used continues to increase to achieve goals of safety, efficiency, along with other benefits. This research presents the most important element of the operational performance of roundabout traffic ...
Laith Shadhan, Zainab Alkaissi
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Developing a method of multi-lane roundabouts capacity
Introduction. In recent years a number of methodological and regulatory documents have been developed for public road roundabouts in the Russian Federation. In particular it was proposed to evaluate the quality of traffic management at roundabouts by the
N. M. Karimov, A. Yu. Mikhailov
doaj +1 more source

