My big rig is a three-axle affair----with a "short" 35' cargo trailer, and there are a number of traffic circles in these parts that are impassable with that rather tame beast. A class 8 rig would destroy some of them.
That said, properly sized and designed traffic circles can be a huge boon to traffic movement. In BUSY intersections, they're a menace.
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"Corporations have been enthroned, and an era of corruption in high places will follow, and the money power of the country will endeavor to prolong its reign by working upon the prejudices of the people until the wealth is aggregated in the hands of a few, and the Republic is destroyed." -- Abraham Lincoln "America will never be destroyed from the outside. If we falter and lose our freedoms, it will be because we destroyed ourselves." - Abraham Lincoln -