Explain road traffic control and identify three factors that threaten effective traffic management in Nigeria.

Here are the answers to your questions:

1) Road traffic control involves directing vehicular and pedestrian traffic to ensure the safety of the general public.

2) Three factors that threaten effective traffic management in Nigeria are:

• Inadequacy of traffic engineering measures.
• Poor road maintenance culture of the people.
• Insufficient car parks. (Other valid answers include: drivers' lack of training, poor driver behaviour, unsafe vehicle conditions, uneven road conditions, poor street lighting, lack of pedestrian facilities, poor traffic enforcement).

3) Unsafe vehicle conditions can lead to breakdown and contribute to a high accident rate.