WHAT TO DO IF a large truck enters the roundabout?

Roundabouts are carefully designed to accommodate all vehicles safely and effectively with large turning radii such as large trucks (semis), tractor-trailers, emergency vehicles and buses. 

Roundabouts provide an area between the circulatory roadway and the central landscaped island, or “truck apron,” over which the rear wheels of these vehicles can safely track. The truck apron is typically composed of a colored and textured concrete to make it visible for drivers and to discourage routine use by smaller vehicles.

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1. Why are roundabouts being utilized more at intersections?
2. How is the size of a roundabout determined?
3. Can a roundabout handle the same traffic volume as a signalized intersection?
4. GENERAL - Why is there a negative perception of roundabouts?
5. GENERAL - What is a mini-roundabout?
6. MULTILANE - For multilane roundabouts, how do I know the proper lane for the direction I wish to travel?
7. MULTILANE - If two vehicles side-by-side approach a multilane roundabout at the same time, which motorist has the right-of-way?
8. SAFETY - Are roundabouts safe for pedestrians?
9. SAFETY - What about bicyclists? Is it safe for them?
10. SAFETY - Are roundabouts more difficult for inexperienced drivers to maneuver through?
11. SAFETY - If roundabouts are so safe, why aren't they used at every intersection?
12. WHAT TO DO IF an emergency vehicle is entering a roundabout?
13. WHAT TO DO IF it's my first time driving at a roundabout?
14. WHAT TO DO IF a large truck enters the roundabout?