عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
TL48557
انگلیسی
Assessing viabilities of roundabouts near school zones
[Thesis]
Terry W. Ward
Islam, Samantha
University of South Alabama
2015
79
Committee members: Chow, Alan; Omar, Husam
Place of publication: United States, Ann Arbor; ISBN=978-1-339-25859-1
M.S.
Engineering
University of South Alabama
2015
Roundabouts are providing safer intersection experiences for motorist than can be achieved at stop-controlled intersections by reducing the potential contact points between vehicles. When designing roundabouts, entry lane capacity can be determined by collecting local data to calculate operational parameters of critical gap and follow-up headway. Software packages such as VISSIM and SIDRA can aid in the design process. This thesis will provide guidelines to accurately evaluate capacity of a local roundabout by comparing the Maximum Likelihood Method with a method provided in the Highway Capacity Manual and by default data from simulation software. This information is applied to determine the viabilities of building roundabouts near school zones. School zones present a unique design challenge because the roundabout provides for lesser delays for vehicles traversing the intersection than would be encountered with a stop-controlled intersection. Roundabouts can deliver more vehicles to the queue, therefore increasing travel times. This thesis explores design adjustments and applies them along with utilization of school properties to optimize travel times.
Civil engineering; Transportation planning
Social sciences;Applied sciences;Intersection experiences;Roundabout;School zone
Almadan, Arwa Hassan
Islam, Samantha
Engineering
University of South Alabama
1749033302; 1603982
مطالعه متن کتاب p
[Thesis]
276903
a
Y
