Freeways must meet the minimum clear zone requirement shown in .

Freeways in urban areas often have restrictive rights-of-way which may require fixed objects (e.g., overhead sign supports, bridge piers, retaining walls, high mast lighting, etc.) to be placed within the clear zone. Fixed objects located within the clear zone must be protected or deemed crashworthy by the Department. Where fixed objects are located beyond the clear zone, roadway side slopes must be either traversable or protected. See for additional information on roadside design guidance.