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Title:

Ride Comfort Analysis of Passenger Cars on Mountain Expressways Based on Triaxial Acceleration Data from Field Driving: Case Study in China

Accession Number:

01624304

Record Type:

Component

Abstract:

To acquire the ride comfort level and its key influencing factors on mountain expressways, real vehicle tests under natural driving behavior were conducted to collect the acceleration data from a variety of small passenger cars. From these data, the peak cumulative frequency curves, characteristic percentiles, and root-mean-square (RMS) values of tri-axial acceleration were obtained. The results showed that the magnitude and characteristic percentiles of acceleration rate were slightly lower than those of the deceleration rate. Different roads and car models varied in the longitudinal acceleration/deceleration but showed an overall high level of longitudinal comfort as indicated by most data being below the comfort threshold. The measured lateral acceleration data varied significantly among different car models and different roads. Overall, the mountain expressways provided good lateral comfort. In terms of the vertical direction, the passengers only rarely experienced discomfort in the lightest vehicle in very few locations; furthermore, vibration marking and colored strips on the pavement did not cause discomfort for occupants in passenger cars. On the expressways, the differences in acceleration amplitude and RMS value between three axial directions were negligible. The RMS value of acceleration in each axial direction and the weighted RMS values in the three axial directions ranged from “comfortable” to “slightly uncomfortable” levels. The evaluation results were consistent with the actual riding experience of the drivers and passengers.

Supplemental Notes:

This paper was sponsored by TRB committee AFD90 Standing Committee on Pavement Surface Properties and Vehicle Interaction. Alternate title: Ride Comfort Analysis of Passenger Cars on Mountain Expressways Based on Tri-axial Acceleration Data from Field Driving: A Case Study in China.

Monograph Accession #:

01618707

Report/Paper Numbers:

17-02765

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Xu, Jin
Yang, Kui
Lin, Wei
Shao, Yi-Ming

Pagination:

12p

Publication Date:

2017

Conference:

Transportation Research Board 96th Annual Meeting

Location: Washington DC, United States
Date: 2017-1-8 to 2017-1-12
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Geographic Terms:

China

Subject Areas:

Highways; Pavements

Source Data:

Transportation Research Board Annual Meeting 2017 Paper #17-02765

Files:

TRIS, TRB, ATRI

Created Date:

Dec 8 2016 11:02AM