You are approaching an intersection at which you want to turn left. You cannot see any other vehicles around. Do you still have to signal?

• No, turn signals are only required when there are other vehicles around.
• No, turn signals are optional in Alberta.
• Yes, you must activate your turn signals well in advance.
  Explanation:

  "Your primary communication tools are your turn signals. Always use your turn signal to let people know you are planning to turn, change lanes, pull out, or pull over. Signal well ahead to give other road users plenty of warning. However, don’t apply your turn signal too soon and confuse other people. If you plan to turn right at the next intersection and there are a number of driveways and lanes before you reach the intersection, wait until you are close enough that people can see exactly where you are planning to turn."
• Yes, you must use your turn signals even if only briefly.