We acknowledge the support of the Road Safety Trust (RST 90_4_18) in funding this study. The research was conducted with the aim of increasing road safety and did not have the involvement of any manufacturer. We note that only one type of light assembly from a single-vehicle within each manufacturers range was assessed, and results are therefore not to be interpreted as applying to any other vehicles or brake light assemblies, and certainly not as any endorsement or otherwise of a particular manufacturer. We also acknowledge that the sample sizes here are quite small, so it would be appropriate for replications of the work to confirm the findings.

We could not fully complete the project due to Covid-19 but hope that our current work will encourage involvement of other parties to continue the project from where we have left off. We would be inclined to work together with any like minded parties in continuing with the outcomes.