Question Lane sharing is: Answers Usually prohibited. Encouraged in areas heavy traffic. Safe because motorcycles don’t require a full lane. Acceptable if you have had your license for more than three years. Explanation Because motorcycles, like cars, need a full lane width for safe operation, lane sharing is usually prohibited. Choose a lane position that discourages other road users from trying to share your lane. Take a FREE Practice Test Now This questions appears in the following tests: Iowa Practice Test