@article{ref1,
title="Exposure for different license categories through a phone survey: validity and feasibility studies",
journal="Accident analysis and prevention",
year="1993",
author="Joly, P. and Joly, Marie France and Desjardins, Denise and Messier, Stephane and Maag, U. and Ghadirian, Parviz and Laberge-Nadeau, Claire",
volume="25",
number="5",
pages="529-536",
abstract="This paper presents: (i) an operational definition of risk exposure, (ii) a questionnaire developed to measure exposure, (iii) validity studies of estimates of the distance traveled and time spent driving for different permit holder categories, and (iv) a feasibility study for a telephone survey on exposure. Results show that long-distance truck drivers from one company studied estimated accurately their distance driven on the last worked day; Montreal Urban Community Transport Commission bus drivers estimated well their time behind the wheel; while a convenience sample of private car drivers (coworkers and friends) estimated well their previous week distance and time on the road. Phone surveys appear to be an efficient and cost-effective method for risk exposure data collection.",
language="en",
issn="0001-4575",
doi="",
url="http://dx.doi.org/"
}