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Title:

Investigating the Relationship between Pavement Roughness and Heart-Rate Variability by Road Driving Test
Cover of Investigating the Relationship between Pavement Roughness and Heart-Rate Variability by Road Driving Test

Accession Number:

01504248

Record Type:

Component

Abstract:

Traffic safety and driving comfort are the key service performances of pavements, and they depend on the pavement roughness to a certain extent. In this study the relationship between pavement roughness and heart rate variability (HRV) of drivers were investigated based on road driving tests. A total of 12 road sections with international roughness index (IRI) ranging from 1.06 to 5.53 mm/m were selected. A KF2 electrocardiogram tester was used to determine the heart rate variability of driver and a three-direction vibration acceleration tester was also used for determining the vibration felt by the driver. Test results show that HRV parameters, such as RMSSD (square root of the mean squared difference of successive NN intervals) and HF (High Frequency components of HRV spectrum), changed obviously when the pavement roughness and travel speed of the vehicle changed. If the vehicle moves with a constant speed, high pavement roughness makes the RMSSD of the driver decrease. Moreover, if the vehicle moves on a road section with constant pavement roughness, the increase of speed makes the RMSSD of the driver decrease too. Decreasing RMSSD of the driver indicates that the functions of the vagus nerve reduce and the driver will feel uncomfortable accordingly. Test results also show that the vibration acceleration of the vehicle increases when the travel speed of vehicle or the pavement roughness increases, and it is obviously related to the RMSSD of the driver.

Supplemental Notes:

Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

Monograph Accession #:

01501394

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Zhang, Jinxi
Du, Yanhua
Su, Ruiwei

Pagination:

13p

Publication Date:

2011

Conference:

3rd International Conference on Road Safety and Simulation

Location: Indianapolis Indiana, United States
Date: 2011-9-14 to 2011-9-16
Sponsors: Purdue University; Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Identifier Terms:

International Roughness Index

Subject Areas:

Highways; Pavements; Safety and Human Factors; I82: Accidents and Transport Infrastructure

Files:

TRIS, TRB, ATRI

Created Date:

Jan 10 2014 10:18AM