Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Validation of in-car observations, a method for driver assessment

Hjälmdahl, Magnus LU and Varhelyi, Andras LU (2004) In Transportation Research. Part A: Policy & Practice 38(2). p.127-142
Abstract
An in-car observation method with human observers in the car was studied to establish whether observers could be trained to observe safety variables and register driver's behaviour in a correct and coherent way, and whether the drivers drove in their normal driving style, despite the presence of the observers. The study further discussed the observed variables from a safety perspective. First three observers were trained in the observation method and on-road observations were carried out. Their observations were then compared with a key representing a correct observation. After practising the observation method the observers showed a high correlation with the key. To establish whether the test drivers drove in a normal way during the... (More)
An in-car observation method with human observers in the car was studied to establish whether observers could be trained to observe safety variables and register driver's behaviour in a correct and coherent way, and whether the drivers drove in their normal driving style, despite the presence of the observers. The study further discussed the observed variables from a safety perspective. First three observers were trained in the observation method and on-road observations were carried out. Their observations were then compared with a key representing a correct observation. After practising the observation method the observers showed a high correlation with the key. To establish whether the test drivers drove in a normal way during the in-car observations, comparisons of 238 spot-speed measurements were carried out. Driver's speeds when driving their own private cars were compared with their speeds during the in-car observations. The analysis showed that the drivers drove in the same way when being observed as they did normally. Most of the variables studied in the in-car observations had a well documented relevance to traffic safety. Overall, in-car observation was shown to be a reliable and valid method to observe driver behaviour, and observed changes provide relevant data on traffic safety. (C) 2003 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
method, safety assessment, driver behaviour, in-car observations, validation
in
Transportation Research. Part A: Policy & Practice
volume
38
issue
2
pages
127 - 142
publisher
Elsevier
external identifiers
  • wos:000188300000003
  • scopus:0346724865
ISSN
0965-8564
DOI
10.1016/j.tra.2003.09.001
language
English
LU publication?
yes
id
65b39261-74d4-4076-98d8-4cb2e0975e75 (old id 288892)
date added to LUP
2016-04-01 17:10:14
date last changed
2022-01-29 00:50:06
@article{65b39261-74d4-4076-98d8-4cb2e0975e75,
  abstract     = {{An in-car observation method with human observers in the car was studied to establish whether observers could be trained to observe safety variables and register driver's behaviour in a correct and coherent way, and whether the drivers drove in their normal driving style, despite the presence of the observers. The study further discussed the observed variables from a safety perspective. First three observers were trained in the observation method and on-road observations were carried out. Their observations were then compared with a key representing a correct observation. After practising the observation method the observers showed a high correlation with the key. To establish whether the test drivers drove in a normal way during the in-car observations, comparisons of 238 spot-speed measurements were carried out. Driver's speeds when driving their own private cars were compared with their speeds during the in-car observations. The analysis showed that the drivers drove in the same way when being observed as they did normally. Most of the variables studied in the in-car observations had a well documented relevance to traffic safety. Overall, in-car observation was shown to be a reliable and valid method to observe driver behaviour, and observed changes provide relevant data on traffic safety. (C) 2003 Elsevier Ltd. All rights reserved.}},
  author       = {{Hjälmdahl, Magnus and Varhelyi, Andras}},
  issn         = {{0965-8564}},
  keywords     = {{method; safety assessment; driver behaviour; in-car observations; validation}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{127--142}},
  publisher    = {{Elsevier}},
  series       = {{Transportation Research. Part A: Policy & Practice}},
  title        = {{Validation of in-car observations, a method for driver assessment}},
  url          = {{http://dx.doi.org/10.1016/j.tra.2003.09.001}},
  doi          = {{10.1016/j.tra.2003.09.001}},
  volume       = {{38}},
  year         = {{2004}},
}