Signalling & Driving when the lighting is poor

What procedure should a driver follow when intending to overtake a cyclist travelling in the same direction up ahead?

Mirror check, indicate and move out if it's safe to do so

What should a driver do when travelling on a country road with following traffic, and they meet pedestrians?

Signal their intention to overtake the pedestrians

When approaching a bus up ahead that I'd signalling to move off from a bus stop, what should a driver do?

Slow down and allow it to move out

When driving on dark winter mornings and evenings on unlit country roads, what should a driver be aware of? (3)

Cyclists are much more vulnerable in poor lighting comditions. Vulnerable pedestrians. Schoolchildren are more vulnerable