At least one city block. Always let the driver behind know what you are about to do.
When turning you should signal during the last 100 feet before a stop sign. This is courteous to all drivers around you.
100 ft
100ft
100 yards
100 ft ahead
About 100 feet.
At least 500 feet.
the same as vehicles, about the length of two houses from where you are turning
I haven't read a driver's manual for years, but yes, as far as I know drivers in Indiana are required to signal before turning.
100 feet
before you get to the turning point ! ! haha
You should start your signal as soon as you start to slow down for the turn. Therefore, turns at higher speed are notified sooner than turns at lower speed. Source: BMW Driving School