Motorists traveling on sections of I-65 currently under construction should take care - the temporary lanes are narrower than highway industry guidelines recommend.
Rules adopted by the American Association of State Highway and Transportation say that lanes should be 12 feet wide. The lanes in the construction zone are about 11 feet wide.
While not ideal, transportation experts say motorists should be safe.
The state transportation department recently began a series of construction projects, which include widening I-65 from three to five lanes.
The first phase of the project, which is to be completed by 2003, begins at the Dickerson Road interchange and ends at Old Hickory Boulevard. The second phase begins at the Old Hickory Boulevard interchange and ends at Vietnam Veterans Boulevard. The third phase begins at Trinity Lane and ends at the Dickerson Road interchange.
The highway association recommends lanes be 3.6 meters in width, or roughly 12 feet.