A Novel Approach for Operating Speed Continuous Predication Based on Alignment Space Comprehensive Index
Joint Authors
Yan, Ying
Tang, Jinjun
Li, Gengping
Guo, Zhongyin
Source
Journal of Advanced Transportation
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-12-12
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Operating speed is a critical indicator for road alignment consistency design and safety evaluation.
Although extensive studies have been conducted on operating speed prediction, few models can finish practical continuous prediction at each point along alignment on multilane highways.
This study proposes a novel method to estimate the operating speed for multilane highways in China from the aspect of the three-dimensional alignment combination.
Operating speed data collected in field experiments on 304 different alignment combination sections are detected by means of Global Positioning System.
First, the alignment comprehensive index (ACI) is designed and introduced to describe the function accounting for alignment continuity and driving safety.
The variables used in ACI include horizontal curve radius, change rate of curvature, deflection angle of curve, grade, and lane width.
Second, the influence range of front and rear alignment on speed is determined on the basis of drivers’ fixation range and dynamical properties of vehicles.
Furthermore, a prediction model based on exponential relationships between road alignment and speeds is designed to predict the speed of passenger cars and trucks.
Finally, three common criteria are utilized to evaluate the effectiveness of the prediction models.
The results indicate that the prediction models outperform the other two operating speed models for their higher prediction accuracy.
American Psychological Association (APA)
Yan, Ying& Li, Gengping& Tang, Jinjun& Guo, Zhongyin. 2017. A Novel Approach for Operating Speed Continuous Predication Based on Alignment Space Comprehensive Index. Journal of Advanced Transportation،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1171147
Modern Language Association (MLA)
Yan, Ying…[et al.]. A Novel Approach for Operating Speed Continuous Predication Based on Alignment Space Comprehensive Index. Journal of Advanced Transportation No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1171147
American Medical Association (AMA)
Yan, Ying& Li, Gengping& Tang, Jinjun& Guo, Zhongyin. A Novel Approach for Operating Speed Continuous Predication Based on Alignment Space Comprehensive Index. Journal of Advanced Transportation. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1171147
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171147