Solving traffic snarls on Interstate 24 in Chattanooga most likely won't involve building double-decker lanes around Moccasin Bend or drilling a new truck tunnel through Missionary Ridge, as suggested by a couple of commuters.

Given environmental, historical and financial constraints, new traffic lanes and interchanges through the downtown portion of I-24 probably aren't in the cards, either.

But a bevy of lesser solutions could come out in January at the end of a yearlong planning process by the Tennessee Department of Transportation. Expect ideas like improving interchanges, adding truck lanes on grades, extending entry and exit lanes, metered ramps for merging traffic and other fixes short of big new construction projects.

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