If there is a road-sign which shows the turning coming up, indicate just before the sign (that way drivers behind you can clearly follow what you intend to do). If there is not a road-sign, indicate just before you have to begin to slow down for the turning, leaving yourself plenty of time to break gradually.
You should turn on your turn signal before you need to brake for the turn.
500 feet
100 yards
Approximately 1 block away from the desired turn
You should use your turn signal in far enough advance so the car behind you knows you are going to turn and has enough time to slow down. However, putting the turn signal on too far in advance can be confusing because the following car will not know exactly when you are going to turn.
the same as vehicles, about the length of two houses from where you are turning
100 ft.
200 feet before the turn according the the IL driving school test answer (1 city block)
On city streets drivers should cast their eyes how far ahead?
at least a block ahead
100 feet
12-15 Seconds