National crash reduction studies indicate that after installation of centerline rumble strips (and some shoulder rumble strips) on rural two-and four-lane highways, MDOT can project:

• a reduction of more than 300 crashes annually
• a reduction of approximately 60 incapacitating injuries annually
• to save more than 15 lives annually!

Over the next three years, MDOT will install 5,700 miles of centerline rumble strips (and an additional 1,700 miles of shoulder rumble strips) on rural highways across Michigan. Although the department has received some concerns about maintenance, motorcycles, and noise, it believes that if one life is saved each year, the investment in this safety initiative is well worth it.