Driver Training's Impact on Road Safety
Driver Training's Impact on Road Safety
INTRODUCTION
                                                   There is continuing public debate in Australia and overseas about the value of
                                                   training for car drivers as a means of improving driver behaviour and reducing road
                                                   crash involvement. This document provides an up-to-date summary of
                                                   scientifically-based Australian and international research about the effectiveness of
                                                   driver training programs for:
                                                   ■ learner drivers,
                                                   ■ young/recently licensed drivers, and
                                                   ■ experienced drivers.
                                                      Effectiveness means the degree to which driver training programs reduce the
                                                   participant’s risk of crashing compared with drivers who did not undertake such
                                                   programs.
                                                      While driver training and driver education are not the same, these terms are
                                                   often used synonymously (1-2). This summary deals with driver training rather
                                                   than education per se. However, as many driver training programs have been
                                                   termed “education” published materials labelled as both “driver education” and
                                                   “driver training” are considered.
Learner drivers are particular targets for driver training efforts of various types (3-5).
                           may also divert scarce funds away from more effective        behavioural rather than crash-based methods have
                           road safety initiatives and countermeasures.                 been undertaken. However, there is little evidence
                                                                                        thus far that this type of training reduces
                           Professional Driving Instruction for learners                crash/violation risk among novices as few crash-based
                           Basic driver training works at an instructional level.       studies of these newer approaches to training have
                           Most people are initially trained to drive by a driving      been completed.
                           instructor, friends, relatives, or a combination of these,
                           in order to obtain their driver licence. This type of           The effectiveness of driver training for
                           driver training concentrates on basic car control skills,
                                                                                           experienced drivers
                           driving techniques, road law knowledge and initial
                           driver licensing (6).                                        There is no sound evidence that either advanced or
                             Greater levels of supervised, real world experience        defensive driving courses reduce the crash
                           during the learner period have been shown to reduce          involvement of experienced drivers who attend them
                           post-licence crash involvement by up to about 35%            (3-5). This is perhaps not surprising as such drivers,
                           (29).     Comparisons of the post-licence crash              particularly those between the age of 25 and 59 years,
                           experience of learners who were trained exclusively          are quite experienced and already have a relatively
                           by professional driving instructors and those trained        low crash risk per distance travelled.
                           exclusively by parents, relatives or friends, is much the      There is evidence from US studies that some
                           same (30).         However, research shows that              programs designed to reduce offence rates among
                           encouraging cooperation between driving schools and          drivers with a history of traffic violations may be
                           parents in teaching learners how to drive may be             effective, but this does not seem to translate into
                           beneficial in increasing the quality of instruction, and     reduced crash involvement (42-44)
                           the quantity of learner driver experience (31).                Driver training may be more effective in fleet
                             Research studies suggest that the best learning            settings than for drivers in general (4, 45-47).
                           environment for the beginning driver is the real road        However, crash reductions among fleets that have
                           system under the supervision of an experienced driver        been attributed to driver training programs often
                           or instructor (17, 32). Learner drivers under                disappear when the effects of other factors are taken
                           supervision on-road have a low risk of crash                 into account (45). Swedish research suggests that
                           involvement, probably the lowest of all driver groups        other more economical measures, such as group
                           (33). The accumulation of an on-road driving                 discussion on safety issues and incentive programs
                           “experience bank” is perhaps the major potential             may be more effective in crash reduction terms than
                           contributor to reduced crash risk in solo driving for        driver training programs (5, 48).
                           novice drivers.
                                                                                           Why does driver training not seem to be
                                                       Some young or recently
                                                                                           effective in reducing craches?
                              The effectiveness        licensed drivers attend
                              of driver training       post-licence driver training     Promoting driver training as a means of improving
                              for young and/or         courses with the belief that     driving skills and knowledge assumes that there are
                              recently licensed        this may improve their           deficiencies in the skills or knowledge of drivers, and
                              drivers                  driving skills and reduce        that these can be improved via training. It also
                                                       crash risk. At face value,       assumes that these skill deficiencies increase the risk
                           this has some intuitive appeal. New drivers are at           of crash involvement. These assumptions are largely
                           greatest crash risk in the first six months of solo          false and based on beliefs not supported by research
                           driving (34). However, there would appear to be little       evidence (13, 49).
                           evidence that training programs undertaken by young             It may be unreasonable to expect driver training to
                           and/or recently licensed drivers are effective in            deliver crash reductions (4, 50). Improving knowledge
                           reducing crash risk or traffic violations (35-37). Such      and skill does not always lead to a change in behaviour
                           training often leads to an increase in confidence and        among drivers. Furthermore, a driver trainer has little
                           optimism bias (ie where novices can believe that they        control over the post-course behaviour of trainees, the
                           are more skillful than they actually are) and                motivation of trainees to apply what has been learned
                           sometimes an increase in crash risk for novices,             or the many other risk factors that may contribute to
                           particularly young males (10, 13, 30).                       crash causation. Drivers, particularly young drivers,
                              From a theoretical perspective, there is support for      can and do take risks that have little to do with how
                           the development and application of programs that             much skill and/or knowledge they have, but much to
                           target optimism bias, over-confidence and attitudinal        do with motivation and psychological factors (4, 51-
                           or motivational factors that influence driving               52). There is little real world evidence to suggest that
                           behaviour (17, 29, 38-39). Several programs using this       driver training accelerates the development of hazard
                           approach - sometimes referred to as “Insight” training       perception skills, or other cognitive skills. These skills
                           - have been trialled in Sweden (40) and the                  can be developed via the experience of real world
                           Netherlands (41) in recent years. Evaluations using          driving (10, 53). There is some emerging evidence
ct-dtm-oct01-printer       4/9/02     3:58 PM     Page 2
   based on simulator research that some skills may be learned.            organization to influence fleet vehicle selection, education about
     Some recent driver training programs claim to modify                  safe vehicle use for employees, incentives for crash free driving
   “attitudes”. Even if attitudes could be changed it would not            (not rewards) and the promotion of a safety culture within the
   necessarily be helpful as there is a poor causal relationship           organisation (60).
   between attitude and actual behaviour (49, 54). In addition,
   driver training is unlikely to undo firmly established past learning    Enforcement: Police enforcement is effective, particularly when
   nor alter motivation or change underlying personal values.              drivers understand that they will get caught and perhaps lose their
                                                                           license if they break the law (4). The most effective enforcement
                                                                           targets behaviour such as drink-driving, speeding and red light
                                                                           running.
      Alternatives to conventional driver training
   Increasing the amount of supervised on-road experience that learner     Overall, the research evidence suggests that most current driver
   drivers receive:                                                        training contributes little to reductions in accident involvement or
   Recent research shows that learners who received about 118 hours        crash risk among drivers of all age and experience groups. Low
   of supervised experience had up to 35% fewer crashes than those         individual crash risk and decay of learning work against the
   who received only 41-47 hours (29). VicRoads, TAC, RACV and             potential effectiveness of driver training programs that
   other road safety organisations are encouraging this approach in        concentrate on car control skills or deal with rare events such as
   Victoria, where a minimum of 120 hours of supervised, on-road           emergencies. The high motivation which trainees usually bring to
   instruction/ experience prior to solo driving is advocated. Programs    driver training does not compensate for these factors.
   developed by VicRoads, TAC, and RACV encourage learners to                 Improving driver knowledge and skill does not always lead to a
   gain greater supervised experience through cooperation between          change in on-road behaviour or reduced crash risk among trainees.
   parents and driving instructors (33, 55-56).                            While skill and knowledge are important, particularly for novice
                                                                           drivers, they have little influence on the driving environment or
   A Different Type of Training:                                           conditions under which driving behaviour occurs post-training.
   Improvements in driver training may be achieved in the longer           On-road driving experience is the way most higher-order
   term by concentrating on cognitive and perceptual skills, together      cognitive skills related to driving (eg hazard perception) are
   with a greater emphasis on how factors such as beliefs and              developed and maintained. Conventional driver training is
   motivation shape driver behaviour (9, 16). This would require a         unlikely to undo firmly established past learning laid down over
   different type of training program than is currently offered.           weeks, months and years of practice and experience, nor alter
   Education programs delivered over several years, perhaps though         motivation or personal values.
   secondary schools, to foster development of safe belief                    It is of concern that the provision of conventional driver training
   /motivational factors, has also been suggested as an alternative to     beyond that required to gain an initial driver licence often leads to
   short-term driver training (57). While theoretically sound, the         increased crash risk among novice drivers. Research suggests that
   effectiveness of such programs in effecting changes in attitude,        this is because the training can encourage earlier licensing,
   behaviour or crash risk is yet to be proven.                            increase exposure-to-risk and/or unduly increase the confidence
                                                                           of novices about their driving abilities.
   Higher Order Testing within a Graduated Driver Licensing Program:          Resources committed to traditional driver education/ training
   Some graduated driver licensing (GLS) programs require novices          may also divert scarce funds and community attention away from
   to pass additional tests of higher-order skills to progress to less     more effective initiatives likely to reduce crash risk.
   restricted licensing levels and to “graduate” to full licence status.      A better alternative for novice drivers is to promote extensive
   Preliminary research from Victoria’s use of hazard perception           supervised driving experience among learners. This approach has
   testing within the probationary licensing system suggests that          been taken up by most Australian driver licensing jurisdictions
   such tests can predict novice drivers likely to be at greater crash     and some in North America via the implementation of Graduated
   risk (59).                                                              Licensing schemes (GLS) which provide for and encourage
                                                                           learner drivers to gain more supervised, on-road driving
   Comprehensive Fleet Management Safety Programs:                         experience before solo driving. However, this approach requires
   A combination of approaches can help reduce crash risk and              cooperation between novice drivers, parents (or supervisors) and
   involvement within company fleets (46, 48). A multifaceted              professional driving instructors over a period of months and
   approach to fleet safety dealing with the selection of vehicles (ie     perhaps years.
   purchasing only vehicles with good crashworthiness features) and           Research and development in respect of driver training may
   management of where, when and how vehicles are used may help            eventually show some approaches to be useful in reducing
   reduce crash risk. Recent studies have identified ways of               casualty accident risk/involvement. In the interim, other
   increasing fleet safety via the application of best practice            approaches such as increased supervision and graduated licensing
   approaches. This includes the implementation of integrated              for novice drivers are likely to make greater and more lasting
   occupational health and safety policy and practices within the          contributions to road safety.
ct-dtm-oct01-printer   4/9/02   3:59 PM     Page 1
                           may also divert scarce funds away from more effective        behavioural rather than crash-based methods have
                           road safety initiatives and countermeasures.                 been undertaken. However, there is little evidence
                                                                                        thus far that this type of training reduces
                           Professional Driving Instruction for learners                crash/violation risk among novices as few crash-based
                           Basic driver training works at an instructional level.       studies of these newer approaches to training have
                           Most people are initially trained to drive by a driving      been completed.
                           instructor, friends, relatives, or a combination of these,
                           in order to obtain their driver licence. This type of           The effectiveness of driver training for
                           driver training concentrates on basic car control skills,
                                                                                           experienced drivers
                           driving techniques, road law knowledge and initial
                           driver licensing (6).                                        There is no sound evidence that either advanced or
                             Greater levels of supervised, real world experience        defensive driving courses reduce the crash
                           during the learner period have been shown to reduce          involvement of experienced drivers who attend them
                           post-licence crash involvement by up to about 35%            (3-5). This is perhaps not surprising as such drivers,
                           (29).     Comparisons of the post-licence crash              particularly those between the age of 25 and 59 years,
                           experience of learners who were trained exclusively          are quite experienced and already have a relatively
                           by professional driving instructors and those trained        low crash risk per distance travelled.
                           exclusively by parents, relatives or friends, is much the      There is evidence from US studies that some
                           same (30).         However, research shows that              programs designed to reduce offence rates among
                           encouraging cooperation between driving schools and          drivers with a history of traffic violations may be
                           parents in teaching learners how to drive may be             effective, but this does not seem to translate into
                           beneficial in increasing the quality of instruction, and     reduced crash involvement (42-44)
                           the quantity of learner driver experience (31).                Driver training may be more effective in fleet
                             Research studies suggest that the best learning            settings than for drivers in general (4, 45-47).
                           environment for the beginning driver is the real road        However, crash reductions among fleets that have
                           system under the supervision of an experienced driver        been attributed to driver training programs often
                           or instructor (17, 32). Learner drivers under                disappear when the effects of other factors are taken
                           supervision on-road have a low risk of crash                 into account (45). Swedish research suggests that
                           involvement, probably the lowest of all driver groups        other more economical measures, such as group
                           (33). The accumulation of an on-road driving                 discussion on safety issues and incentive programs
                           “experience bank” is perhaps the major potential             may be more effective in crash reduction terms than
                           contributor to reduced crash risk in solo driving for        driver training programs (5, 48).
                           novice drivers.
                                                                                           Why does driver training not seem to be
                                                       Some young or recently
                                                                                           effective in reducing craches?
                              The effectiveness        licensed drivers attend
                              of driver training       post-licence driver training     Promoting driver training as a means of improving
                              for young and/or         courses with the belief that     driving skills and knowledge assumes that there are
                              recently licensed        this may improve their           deficiencies in the skills or knowledge of drivers, and
                              drivers                  driving skills and reduce        that these can be improved via training. It also
                                                       crash risk. At face value,       assumes that these skill deficiencies increase the risk
                           this has some intuitive appeal. New drivers are at           of crash involvement. These assumptions are largely
                           greatest crash risk in the first six months of solo          false and based on beliefs not supported by research
                           driving (34). However, there would appear to be little       evidence (13, 49).
                           evidence that training programs undertaken by young             It may be unreasonable to expect driver training to
                           and/or recently licensed drivers are effective in            deliver crash reductions (4, 50). Improving knowledge
                           reducing crash risk or traffic violations (35-37). Such      and skill does not always lead to a change in behaviour
                           training often leads to an increase in confidence and        among drivers. Furthermore, a driver trainer has little
                           optimism bias (ie where novices can believe that they        control over the post-course behaviour of trainees, the
                           are more skillful than they actually are) and                motivation of trainees to apply what has been learned
                           sometimes an increase in crash risk for novices,             or the many other risk factors that may contribute to
                           particularly young males (10, 13, 30).                       crash causation. Drivers, particularly young drivers,
                              From a theoretical perspective, there is support for      can and do take risks that have little to do with how
                           the development and application of programs that             much skill and/or knowledge they have, but much to
                           target optimism bias, over-confidence and attitudinal        do with motivation and psychological factors (4, 51-
                           or motivational factors that influence driving               52). There is little real world evidence to suggest that
                           behaviour (17, 29, 38-39). Several programs using this       driver training accelerates the development of hazard
                           approach - sometimes referred to as “Insight” training       perception skills, or other cognitive skills. These skills
                           - have been trialled in Sweden (40) and the                  can be developed via the experience of real world
                           Netherlands (41) in recent years. Evaluations using          driving (10, 53). There is some emerging evidence
ct-dtm-oct01-printer       4/9/02     3:59 PM     Page 2
   based on simulator research that some skills may be learned.            organization to influence fleet vehicle selection, education about
     Some recent driver training programs claim to modify                  safe vehicle use for employees, incentives for crash free driving
   “attitudes”. Even if attitudes could be changed it would not            (not rewards) and the promotion of a safety culture within the
   necessarily be helpful as there is a poor causal relationship           organisation (60).
   between attitude and actual behaviour (49, 54). In addition,
   driver training is unlikely to undo firmly established past learning    Enforcement: Police enforcement is effective, particularly when
   nor alter motivation or change underlying personal values.              drivers understand that they will get caught and perhaps lose their
                                                                           license if they break the law (4). The most effective enforcement
                                                                           targets behaviour such as drink-driving, speeding and red light
                                                                           running.
      Alternatives to conventional driver training
   Increasing the amount of supervised on-road experience that learner     Overall, the research evidence suggests that most current driver
   drivers receive:                                                        training contributes little to reductions in accident involvement or
   Recent research shows that learners who received about 118 hours        crash risk among drivers of all age and experience groups. Low
   of supervised experience had up to 35% fewer crashes than those         individual crash risk and decay of learning work against the
   who received only 41-47 hours (29). VicRoads, TAC, RACV and             potential effectiveness of driver training programs that
   other road safety organisations are encouraging this approach in        concentrate on car control skills or deal with rare events such as
   Victoria, where a minimum of 120 hours of supervised, on-road           emergencies. The high motivation which trainees usually bring to
   instruction/ experience prior to solo driving is advocated. Programs    driver training does not compensate for these factors.
   developed by VicRoads, TAC, and RACV encourage learners to                 Improving driver knowledge and skill does not always lead to a
   gain greater supervised experience through cooperation between          change in on-road behaviour or reduced crash risk among trainees.
   parents and driving instructors (33, 55-56).                            While skill and knowledge are important, particularly for novice
                                                                           drivers, they have little influence on the driving environment or
   A Different Type of Training:                                           conditions under which driving behaviour occurs post-training.
   Improvements in driver training may be achieved in the longer           On-road driving experience is the way most higher-order
   term by concentrating on cognitive and perceptual skills, together      cognitive skills related to driving (eg hazard perception) are
   with a greater emphasis on how factors such as beliefs and              developed and maintained. Conventional driver training is
   motivation shape driver behaviour (9, 16). This would require a         unlikely to undo firmly established past learning laid down over
   different type of training program than is currently offered.           weeks, months and years of practice and experience, nor alter
   Education programs delivered over several years, perhaps though         motivation or personal values.
   secondary schools, to foster development of safe belief                    It is of concern that the provision of conventional driver training
   /motivational factors, has also been suggested as an alternative to     beyond that required to gain an initial driver licence often leads to
   short-term driver training (57). While theoretically sound, the         increased crash risk among novice drivers. Research suggests that
   effectiveness of such programs in effecting changes in attitude,        this is because the training can encourage earlier licensing,
   behaviour or crash risk is yet to be proven.                            increase exposure-to-risk and/or unduly increase the confidence
                                                                           of novices about their driving abilities.
   Higher Order Testing within a Graduated Driver Licensing Program:          Resources committed to traditional driver education/ training
   Some graduated driver licensing (GLS) programs require novices          may also divert scarce funds and community attention away from
   to pass additional tests of higher-order skills to progress to less     more effective initiatives likely to reduce crash risk.
   restricted licensing levels and to “graduate” to full licence status.      A better alternative for novice drivers is to promote extensive
   Preliminary research from Victoria’s use of hazard perception           supervised driving experience among learners. This approach has
   testing within the probationary licensing system suggests that          been taken up by most Australian driver licensing jurisdictions
   such tests can predict novice drivers likely to be at greater crash     and some in North America via the implementation of Graduated
   risk (59).                                                              Licensing schemes (GLS) which provide for and encourage
                                                                           learner drivers to gain more supervised, on-road driving
   Comprehensive Fleet Management Safety Programs:                         experience before solo driving. However, this approach requires
   A combination of approaches can help reduce crash risk and              cooperation between novice drivers, parents (or supervisors) and
   involvement within company fleets (46, 48). A multifaceted              professional driving instructors over a period of months and
   approach to fleet safety dealing with the selection of vehicles (ie     perhaps years.
   purchasing only vehicles with good crashworthiness features) and           Research and development in respect of driver training may
   management of where, when and how vehicles are used may help            eventually show some approaches to be useful in reducing
   reduce crash risk. Recent studies have identified ways of               casualty accident risk/involvement. In the interim, other
   increasing fleet safety via the application of best practice            approaches such as increased supervision and graduated licensing
   approaches. This includes the implementation of integrated              for novice drivers are likely to make greater and more lasting
   occupational health and safety policy and practices within the          contributions to road safety.
ct-dtm-oct01-printer     4/9/02   3:59 PM    Page 3
                                            This monograph is based on a report prepared for RACV by Dr Ron Christie of RCSC Services called
                                            “The Effectiveness of Driver training as a Road Safety Measure: A review of the literature”.