An Evaluation of Driver Behavior at Signalized Intersections PDF Download
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Author: Robert Hilton Wortman
Publisher:
ISBN:
Category : Automobile driving
Languages : en
Pages : 118
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Book Description
Author: Robert Hilton Wortman
Publisher:
ISBN:
Category : Automobile driving
Languages : en
Pages : 118
Get Book Here
Book Description
Author: Robert Hilton Wortman
Publisher:
ISBN:
Category : Automobile driving
Languages : en
Pages : 118
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Book Description
Author: Daiheng Ni
Publisher: Springer Nature
ISBN: 3030385493
Category : Technology & Engineering
Languages : en
Pages : 335
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Book Description
This textbook introduces the basics principles of intersection signalization including need studies, signal phasing, sequencing, timing, as well as more advanced topics such as detectors, controllers, actuated control schemes, and signal coordination. The book covers a variety of topics critical to the set up and operation of intersections controlled by traffic signals. Professor Ni imparts a basic understanding of how intersections work, what justifies intersection signalization, how to properly design phasing and timing plans for intersections, what is needed to run traffic-responsive signals, the workings of traffic controller cabinets, and how to set up signal coordination at multiple intersections—competencies essential to transportation professionals in charge of traffic operation at federal, state, and local levels. Aimed at students in transportation engineering programs with a focus on intersection signalization, the book is also ideal for researchers of traffic dynamics and municipal civil and transportation engineers.
Author: Xinyu Zhou
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Stop lines are common at intersections; however, few studies have focused on the position of stopped vehicles with respect to the stop line. Often drivers will stop their vehicles over the line creating potential operational or safety problems. In this thesis, data collected from local intersections in State College, Pennsylvania, indicated that only 61 percent of the vehicles observed were in compliance and 13 percent of the vehicles observed were committing severe violations. The data were analyzed to characterize driver behavior related to stop location during red phases. Driver stop line violations were influenced by many factors in this study. Lane usage (right turn only) was associated with high violation rates. Minor roads, when compared to major roads, were more likely to have more severe violations, while morning periods had more minor violations than other time periods. Through only lanes or increased distance from the stop line to the crosswalk or curb extension line promoted higher rates of compliance. Improvements on having a good sight view, keeping enough sight distance and vehicle stop distance could be good choices on reducing severe stop line violations. Increasing the distance from a stop line to a crosswalk or curb extension line an additional 10 feet might provide enough space for the majority of the vehicles stopping at an intersection from entering the crosswalk or intersection area.
Author: Xiaoyang Geng
Publisher:
ISBN:
Category : Automobile drivers
Languages : en
Pages : 90
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Book Description
Author: Paul Zador
Publisher:
ISBN:
Category : Automobile driving
Languages : en
Pages : 22
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Book Description
Author: Everett C. Carter
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 188
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Book Description
Author: Yohannes Bekele Weldegiorgis
Publisher:
ISBN:
Category : Civil engineering
Languages : en
Pages : 312
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Book Description
In recent years many red light cameras have been installed at signalized intersections along urban arterials. The main reason behind installing cameras is to reduce red light running behavior in an effort to improve intersection safety. At red light camera equipped intersections, if a driver is aware of the presence of the cameras his/her driving behavior is bound to change. This behavioral change however, may be intentional or unintentional. The change in behavior will influence the utilization of yellow intervals resulting in an increased "dilemma zone" which in turn, will affect the capacity (or efficiency) of the intersection operation. Motorist behavior at an intersection equipped with red light camera is a major factor contributing to the safety and operation of the intersection. A motorists' decision whether to pass or stop at the intersection during the yellow signal interval depends on a number of factors, such as speed, geometric characteristics, driver's attitude, to name a few. The decision with respect to the yellow signal can result in red light running or rear end and side collisions. Motorists' behavior at red light camera intersections during exposure with a yellow signal may be seen as a binary decision in which case the two main decisions are either to come to a stop or cross the intersection. In this dissertation, a discrete choice model of the stopping probability is developed using vehicles' actual speed and location from the stop line when the motorist is exposed to the yellow signal. A binary choice model is developed using the probability of stopping to the yellow signal as a function of actual approach speed, distance from intersection, and presence of camera. The existence of the dilemma zone is estimated using dilemma zone plots developed from the probability of stopping vs. distance from stop line during the yellow interval. The dissertation also presents a new approach to calculate the change in capacity resulting from drivers stopping at the intersection during the yellow interval. Using field data from Baltimore, Maryland it is shown that the capacity of camera equipped intersections may be lower than that at intersections without cameras. -- Abstract.
Author: Yosef Sheffi
Publisher:
ISBN:
Category : Motor vehicle drivers
Languages : en
Pages : 19
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Book Description
Author: Suresh Lankalapalli
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 186
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Book Description
