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Scientific paper - Original scientific paper
The Design Vehicle Steering Path Construction Based on the Hairpin Bend Geometry—Application in Roundabout Design
Applied Sciences, 12 (2022), 21; 11019. https://doi.org/10.3390/app122111019
Ahac, Saša; Ahac, Maja; Džambas, Tamara; Dragčević, Vesna

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Ahac, S., Ahac, M., Džambas, T. & Dragčević, V. (2022). The Design Vehicle Steering Path Construction Based on the Hairpin Bend Geometry—Application in Roundabout Design. Applied Sciences, 12. (21). doi: 10.3390/app122111019

Ahac, Saša, et al. "The Design Vehicle Steering Path Construction Based on the Hairpin Bend Geometry—Application in Roundabout Design." Applied Sciences, vol. 12, no. 21, 2022. https://doi.org/10.3390/app122111019

Ahac, Saša, Maja Ahac, Tamara Džambas and Vesna Dragčević. "The Design Vehicle Steering Path Construction Based on the Hairpin Bend Geometry—Application in Roundabout Design." Applied Sciences 12, no. 21 (2022). https://doi.org/10.3390/app122111019

Ahac, S., et al. (2022) 'The Design Vehicle Steering Path Construction Based on the Hairpin Bend Geometry—Application in Roundabout Design', Applied Sciences, 12(21). doi: 10.3390/app122111019

Ahac S, Ahac M, Džambas T, Dragčević V. The Design Vehicle Steering Path Construction Based on the Hairpin Bend Geometry—Application in Roundabout Design. Applied Sciences [Internet]. 2022 October 31 [cited 2025 February 26];12(21). doi: 10.3390/app122111019

S. Ahac, M. Ahac, T. Džambas and V. Dragčević, "The Design Vehicle Steering Path Construction Based on the Hairpin Bend Geometry—Application in Roundabout Design", Applied Sciences, vol. 12, no. 21, October 2022. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:237:314976. [Accessed: 26 February 2025]

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Metadata
Title (english)The Design Vehicle Steering Path Construction Based on the Hairpin Bend Geometry—Application in Roundabout Design
AuthorSaša Ahac
AuthorMaja Ahac
AuthorTamara Džambas
AuthorVesna Dragčević
Author's institutionUniversity of Zagreb
Faculty of Civil Engineering
(Transportation Engineering)
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Transportation
Abstract (english)
A prerequisite for a well-designed roundabout is the definition of the design vehicle movement geometry and its turning envelopes. This is because kinematic and dynamic requirements lose their importance due to low driving speed. In this paper, the investigation of the deviations of design vehicle steering paths for straight passage through the roundabout constructed according to the two approaches is presented. The first approach (A-1) includes the application of short, straight lines between... More the adjacent arcs on the path, and the second (A-2) implies the application of consecutive circular arcs. A computer simulation of vehicle movement was conducted using the Autodesk Vehicle Tracking 2020 software. The results showed that A-2, a faster and simpler approach, is applicable with caution, as the resulting turning envelopes derived from this approach are more offset from the roundabout centers compared to the A-1 approach. A total of 72% of right-hand-side path and resulting right-hand-side design vehicle body and chassis turning envelope deviations were between 0.00 and 0.15 m, 27% were over 0.15 m, and 7% were over 0.25 m. This results in larger roundabout entry and exit widths as well as the need for large lateral clearances for entries and exits on roundabouts where heavy pedestrian traffic on sidewalks is expected. The noted offset of left-hand-side design vehicle trajectories on the circulatory roadway (which was mostly between 0.05 and 0.15 m) could have a positive impact on the deflection around the central island. Less
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleApplied Sciences
Numberingvol. 12, no. 21, 11019
BPC1674,63 EUR
p-ISSN2076-3417
DOIhttps://doi.org/10.3390/app122111019
URN:NBNurn:nbn:hr:237:314976
Publication2022-10-31
Document URLhttps://www.mdpi.com/2076-3417/12/21/11019
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-07-11 05:43:59
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