Swept Path Analysis on Roundabouts for Three-Axle Buses – Review of the Croatian Design Guidelines

4th International Conference on Road and Rail Infrastructure (CETRA 2016)

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Title Swept Path Analysis on Roundabouts for Three-Axle Buses – Review of the Croatian Design Guidelines
 
Creator Šime Bezina; University of Zagreb Faculty of Civil Engineering Department of Transportation Engineering
Ivica Stančerić; University of Zagreb Faculty of Civil Engineering Department of Transportation Engineering
Saša Ahac; University of Zagreb Faculty of Civil Engineering Department of Transportation Engineering
 
Subject Croatian guidelines; roundabouts; design vehicle; three-axle buses
 
Description Latest edition of Croatian design guidelines for roundabouts was published in 2014, and its usage is mandatory for intersections on the state roads. This paper offers a review of aforementioned guidelines, with the emphasis on the roundabout geometric design, which are presented through several theoretical examples of suburban roundabouts with various external radii. On these roundabouts swept path analysis for tri-axle bus is conducted, and results of this analysis are commented on. This long passenger vehicle was chosen for the analysis even though it is not defined as a design vehicle in guidelines, due to the following facts: (1) Croatia is a popular tourist destination, with numerous guests arriving from distant locations, and tri-axle buses are a common mean of their transport; (2) swept path analyses have shown that the space needed by the vehicle body during the turning movements is larger for this type of vehicle, compared to design vehicles from the guidelines. Because of that, this paper presents the impact of aforementioned long passenger vehicles on the geometric design of roundabouts.
 
Publisher CETRA 2016
 
Contributor
 
Date 2017-02-28 15:15:15
 
Type Peer-reviewed Paper
 
Identifier http://master.grad.hr/cetra/ocs/index.php/cetra4/cetra2016/paper/view/512
 
Source CETRA 2016; 4th International Conference on Road and Rail Infrastructure
 
Language en
 
Rights Authors who submit to this conference agree to the following terms:<br /> <strong>a)</strong> Authors retain copyright over their work, while allowing the conference to place this unpublished work under a <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution License</a>, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference. <br /> <strong>b)</strong> Submitted full papers will be published in the book of proceedings "Road and Rail Infrastructure IV" as well as in digital form (on a CD). Conference organiser is allowed to publish author's names, institution and country as well as the paper abstract on the conference web site.
 

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