In The Gambia, up to 30% of road traffic crashes involve students with a mean age of 14 years and more than half (51%) were injured as pedestrians. To our knowledge, no study in West Africa investigated child safety behaviours with a support system from parents. This study investigates the influences of safety education and parent support to improve child safety behavior on the road in The Gambia. Methods: Using a controlled field experimental design, two public lower basic schools located along a public road (highway) in West Coast Region were randomly assigned as the intervention or control schools. Eligible participants were all students aged 11 to 14 years. Parents of children in the intervention school were provided road safety education and their parent support was assessed, including the child’s mode of transport to school, sources of distraction, and safety concerns. However, in the control school, both parents and students were given information about how to ensure dental hygiene. Real-time video recordings were used to observe child safety behaviour while on the road environment. Results: The results showed that individuals or groups of students were more likely in the intervention school than in the control school to demonstrate ideal road crossing behaviours, such as looking left-right-left before road crossing, less likely to cross the road while there is an incoming vehicle, crossed the road without distractions from others, crossed the road at designated crossing areas and walking fast and not running while crossing the road. The mean crossing time was lower for children in the intervention school than in the control school. Conclusions: The study demonstrated, to an extent adoption of ideal behaviour among students. These findings may fill in a knowledge gap and should initiate discussions on introducing road safety lessons in the basic school system in The Gambia.