Just saw the post by tnteacherguy. If the OP is going to stay at Ripplin Waters Campground in Sevierville, there is no traffic light where the park entrance is on Route 66. One can turn only right when exiting the park. This is the wrong way to return to I 40. Then one must make a "U" turn across a narrow median. One has a choice to do this maneuver without a traffic light. Or go about a mile to the next traffic light and do the "U" turn there.
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