1. Driver fatigue and drowsiness.
2. Poor vehicle-pavement traction.
3. Poor visibility due to adverse weather conditions.
4. Reduction of driver concentration for long and monotonous sections.
When vehicle tires pass over buzzer guides, the driver senses the noise and vibration that occurs to alert and correct steering.
Sound tracks create noise and vibrations within the vehicle that alert the driver of a lane change or edge line departure.
Doing the painting inside the footprint achieves that the beam of light from the headlights is reflected on the vertical wall, achieving greater night visibility.
The installation of a sound track on Secondary Roads would prevent 4 deaths and approximately 200 injuries / year.
Sound tracks are not affected by freeze / thaw cycles any more than the surrounding pavement.