Home / Newfoundland and Labrador / Questions / Road Signs Road Signs Report A red circle with truck icon crossed by slash means: A Truck parking B Trucks prohibited on this road C Truck weigh station D Truck route Show Answer & Explanation Correct Answer: B. Trucks prohibited on this road Delivery exceptions with permission. Previous Next More Road Signs Questions A white diamond on blue background in a lane indicates: A red eight-sided (octagon) sign in Newfoundland and Labrador means: A yellow diamond with an S-shaped arrow means: A yellow diamond with a sharply bent arrow (90°) means: A yellow diamond with a car and skid lines means: Often Missed All Newfoundland and Labrador Questions Smart Practice Mock Exam Road Signs Guide