Abstract
ASEAN region consists of the greatest number of motorcycle-related accidents with severe and fatal casualties in Asia. Limited or blocked rearward visibility of vehicles has long been viewed as one of the causes of motorcycle accident. In this study, the rearward visibility of sixteen passenger vehicles have been assessed and analyzed using a new assessment based on some aspects of ECE46 and FMVSS III international protocols for Class I (internal rearview mirror) and Class III (side-view mirror). A novel scoring system based on the average width of underbone-type motorcycles in Malaysia and Indonesia is proposed to highlight the importance of rearward visibility towards the conspicuity of motorcycles. The results of the assessment show that there are two distinct vehicle groups in terms of rearward visibility: pick-up trucks and non-pickup vehicles. Pick-up trucks tend to have more prominent rearward visibility for CLASS I and III due to its bigger mirror, windscreen and body structure.Keywords: Rearward visibility, vehicle visibility assessment, ECE46, FMVSS III
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