978-613-9-44770-1

Guideline for Roundabout Circulatory Width Based on Vehicle Dynamics

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Summary:

Current guidelines for roundabout circulatory roadway width are based on a static method that does not consider circulatory speed. This paper presents a method for determining the circulatory and entry widths based on a two-dimensional vehicle dynamics model that involves a system of differential equations of curvilinear motion. The method considers the interactions between a vehicle and road geometric elements, including tire sideslip, vehicle weight, vehicle speed, and vehicle stability. Three design vehicles are considered: intermediate semitrailer (WB-12), interstate semitrailer (WB-20), and city transit bus (CITY-BUS). Design guidelines for the required circulatory width are established for different circulatory speeds (0-60 km/h) and different inscribed circle diameters (30-80 m). To simplify the guidelines, for each design vehicle and for each inscribed circle diameter (ICD) the regression model of circulatory roadway width as a power function of circulatory speed was fitted. The results show the efficiency of the proposed method which provides smaller values of circulatory roadway widths than those of current methods.

Author:

Maksym Diachuk

Biographie:

Dr. Maksym Diachuk, a postdoctoral fellow, Ryerson University, Toronto, Canada (2016-2019). Associate professor, Mechanical Faculty, Prydniprovs’ka State Academy of Civil Engineering and Architecture, Ukraine (1998-2016). PhD in motor car and tractors, Kharkiv National Automobile and Highway University, Ukraine (2006). Vehicle dynamics and control.

Author:

Said Easa

Biographie:

Number of Pages:

52

Book language:

English

Published On:

2019-02-11

ISBN:

978-613-9-44770-1

Publishing House:

LAP LAMBERT Academic Publishing

Keywords:

Roundabout, Circulatory roadway width, Articulated Vehicle dynamics

Product category:

TECHNOLOGY / Engineering / General