The types of hazards you need to look for are:
*Pedestrians or cyclists crossing the road.
*Vehicles emerging from side roads, parking places or driveways.
*Large vehicles moving over to your side of the road.
*Meeting oncoming vehicles on narrow roads or where other obstructions or slow moving vehicles make the road narrow.
*Where animals may wander onto the road.
The full list of potential hazards are:
1 Zebra crossings & traffic controllers
2 Pedestrians: Children & young adults
3 Pedestrians: Elderly & infirm
4 Pedestrians: Adults
5 Cyclists & motorcyclists
6 Horse riders & other animals
7 Vehicles: moving off or pulling up
8 Vehicles: meeting
9 Vehicles: emerging
10 Vehicles: turning left or right
11 Vehicles: reversing & U-turns
12 Vehicles: larger Vehicles
13 Vehicles: flashing lights