Inspect driver visibility Functional Hierarchy Diagram

Element View:
Inspect driver visibilityInspect driver visibilityInspect front and side visibility:
Visibility testPut vehicle in the center of a semi-circle of 60cm high traffic conesDriver must see all the conesDriver visibility inspection failedInspect rear view visibility:
Rear visibility test 1
Rear vis 2
Rear vis 3
Rear vis 4Driver enters vehicleDriver puts on seat beltInspector moves cone till driver can see it in the rear-view mirror