• Reduces hydroplaning, both dynamic (standing water) as well as viscous (wet pavement with or without standing water).
• Maintains a higher level of contact between tires and pavement under weather conditions causing wet pavement.
• Allows for ample direction and breaking control of the aircraft when landing
• Transverse grooving allows for slight drainage of water, though not complete drainage
• Friction is provided by pavement texture
• Grooves cause water to fall through, minimizing water on top and allowing tires to grip the pavement.
• Worn down aircraft tires brake better on a grooved runway than new tires would on a non-grooved runway on wet pavement.
• Minimized hydroplaning: positive nose – gear steering is maintained during the landing
• Minimized drift: provides high cornering forces
• Impressive braking: reduced stopping distance
• Safer landing: pilots can maintain control in bad weather landings
• Continued landings in bad weather : pilots can safely land on wet, flooded runways, allowing the air carriers, airport owners and pilots to stick to their schedules during inclement weather.

Cardinal traces its grooving roots back to its extensive work with the National Aeronautics and Space Administration (NASA) at Langley Field, Virginia in the late 1960’s. In conjunction with NASA, Cardinal invented the SAFE-T-GROOVER® to eliminate hydroplaning on airport runways. Cardinal currently holds over fifty patents in the grooving and related fields. All machines are designed and built in house Machines range from 600 horsepower and 2.44 m wide to the „smallest” ones - 165 horsepower Standard grooves 6mm wide x 6 mm deep x 38 mm c-t-c Unique and patented T-shape grooves (trapezoidal grooves) the runway drains faster, requires less maintanance and lasts longer Over 80 runway grooving projects performed at both military and civil airports. Routinely 610- 915 lineal metres can be grooved per 24 hour period in both asphalt and concrete.