Drivers in the Wallace Tunnel now have a safer experience thanks to a new road treatment designed to improve traction and reduce the risk of crashes. The application of a high-friction surface treatment (HFST) enhances safety by increasing tire grip, particularly in areas where roadway conditions make vehicles more prone to skidding or losing control.
What is HFST?
HFST is a specialized road surface treatment that significantly improves traction, especially in challenging driving conditions such as wet roads or sharp curves. The treatment consists of a strong resin binder combined with rough materials like bauxite, which increases surface friction and enhances vehicle stability.
How HFST Improves Roadway Safety
- Better Tire Grip – Helps prevent skidding and hydroplaning.
- Improved Control – Reduces the likelihood of vehicles sliding on curves, ramps, and steep grades.
- Shorter Stopping Distance – Enhances braking performance, lowering the risk of rear-end and loss-of-control incidents.
- Safer High-Risk Areas – Applied in locations where enhanced traction is essential for reducing incidents.
Where HFST Is Used:
- Sharp Curves – Helps vehicles maintain better control and stay on the roadway.
- Intersections – Improves stopping power, reducing the risk of sudden braking incidents.
- Bridges and Ramps – Enhances traction in wet or icy conditions.
- Steep Hills – Assists large vehicles in maintaining stability and control.
Investing in Safety
The implementation of HFST in the Wallace Tunnel is part of ALDOT’s ongoing commitment to improving roadway safety through innovative solutions. The treatment cost $743,562, but the benefits extend far beyond safety alone. HFST helps reduce traffic congestion, leading to less traveler delay and fuel savings for motorists. Additionally, fewer vehicle incidents inside the tunnel likely mean fewer secondary vehicle incidents outside the tunnel. This improves traffic flow even more. Targeted roadway improvements are part of ALDOT’s mission in making Alabama’s roads safer and more efficient for everyone.
