This was significant because many drivers had not engaged in any form of training for some time and may have left school with few academic qualifications.
Roedd hyn yn arwyddocaol gan nad oedd llawer o yrwyr wedi ymgymryd ag unrhyw fath o hyfforddiant ers peth amser ac efallai eu bod wedi gadael yr ysgol gydag ond ychydig o gymwysterau academaidd.