The efficacy of hazard perception training and education: A systematic review and meta-analysis

BACKGROUND

Hazard perception (HP) has been argued to improve with experience, with numerous training programs having been developed in an attempt to fast track the development of this critical safety skill. To date, there has been little synthesis of these methods.

OBJECTIVE

The present study sought to synthesise the literature for all road users to capture the breadth of methodologies and intervention types, and quantify their efficacy.

DATA SOURCES

A systematic review of both peer reviewed and non-peer-reviewed literature was completed. A total of 57 papers were found to have met inclusion criteria.

RESULTS

Research into hazard perception has focused primarily on drivers (with 42 studies), with a limited number of studies focusing on vulnerable road users, including motorcyclists (3 studies), cyclists (7 studies) and pedestrians (5 studies). Training was found to have a large significant effect on improving hazard perception skills for drivers (g = 0.78) and cyclists (g = 0.97), a moderate effect for pedestrians (g = 0.64) and small effect for motorcyclists (g = 0.42). There was considerable heterogeneity in the findings, with the efficacy of training varying as a function of the hazard perception skill being measured, the type of training enacted (active, passive or combined) and the number of sessions of training (single or multiple). Active training and single sessions were found to yield more consistent significant improvements in hazard perception.

CONCLUSIONS

This study found that HP training improved HP skill across all road user groups with generally moderate to large effects identified. HP training should employ a training method that actively engages the participants in the training task. Preliminary results suggest that a single session of training may be sufficient to improve HP skill however more research is needed into the delivery of these single sessions and long-term retention. Further research is also required to determine whether improvements in early-stage skills translate to improvements in responses on the road, and the long-term retention of the skills developed through training.

Perspectives of general practitioners and memory clinic patients on ageing and cognitive decline to inform the design of a decentralised antihypertensive dementia prevention trial

BACKGROUND

The global burden dementia is growing each year. Clinical trials investigating approaches to preventing dementia have been occurring for decades, but they are particularly challenging including the requirement to include large numbers of healthy 'at-risk' people who need to be followed up for a long period of time. Community and consumer involvement in trial design helps to ensure that the methods are acceptable to the involved stakeholders, the design and operation of clinical trials are suitable and applicable to the target population, and that key areas of concern are identified and addressed at an early stage.

OBJECTIVES

To gain insights from samples of memory clinic patients without dementia and general practitioners on the acceptability of, and attitudes towards, the proposed design of a decentralised antihypertensive dementia prevention trial. Topics addressed included the assessment of cognition, antihypertensive medication use, and motivation to participate in research.

METHODS

Two focus groups (total n = 7) with memory clinic patients and individual interviews with GPs (n = 5) were conducted. Transcripts were analysed using qualitative thematic framework analysis.

RESULTS

The proposed design was acceptable, with some possible barriers identified regarding computer use, GP time restraints, and concerns about medication interactions. Additional themes included the importance of communication and social connectedness in research participation and perceptions of ageing in medical settings. Future directions of research into larger studies and consumer-led research practices were discussed.

CONCLUSION

The proposed trial design was agreed to be acceptable with some operational considerations, which were incorporated in the trial design.