Runway Friction and Marking Testing: Ensuring Safe Landings

When it comes to aviation safety, every detail matters. One critical factor that often goes unnoticed by passengers is the condition of the runway surface. The friction between an aircraft’s tires and the runway plays a vital role in safe takeoffs and landings. Without proper friction, planes risk skidding or hydroplaning, especially in wet or icy conditions. This is why runway friction measurement is a crucial component of airport maintenance and safety protocols.

• Surface texture and material
• Weather conditions such as rain, snow, or ice
• Rubber deposits from aircraft tires
• Surface wear and aging

By regularly measuring friction, runoff, and reflectometry of markings, airports can identify hazardous conditions before they lead to accidents. The measurement is typically performed using specialized vehicles equipped with friction testing devices that simulate the contact between aircraft tires.

Runway surface texture is being added for friction by Skidabrader. The center lane is “before” work.

Methods of Runway Safety Measurements from Skidabrader

1. The Hydrotimer

This device measures the pavement’s ability to relieve water pressure at the tire footprint, thus giving an excellent indication of vehicular skidding and hydroplaning potential under wet weather conditions. The HydroTimer is a self-contained outflow meter that produces consistently accurate results regardless of the operator, provided the tests are performed in accordance with the instructions. The HydroTimer is a precision instrument calibrated to meet the ASTM International E 2380-05 Standards that Skidabrader developed. Not only are they calibrated to meet the ASTM International E 2380-05 Standards, developed by Skidabrader, but we also use this device for our operations. It is also sold and relied upon by aviation authorities and DOTs.

A self-contained outflow meter that tests surface drainage on concrete and asphalt pavements before and after surface preparations.

Mu-Meters

Airplanes and Automobiles depend on tire friction between runways and roads. This friction keeps planes and automobiles from sliding and slipping, especially in wet weather.

Over time, pavement’s skid resistance deteriorates due to weathering, usage, aging, and the presence of contaminants. The most persistent contaminant problem is the accumulation of rubber deposits from the tires of landing jet aircraft. Heavy rubber deposits can completely cover the pavement surface texture, causing a loss of aircraft braking capability and directional control, particularly when runways are wet.

2. Reflectometry Testing

Agencies have consistently recognized the important correlation between the visibility of pavement markings and roadway safety. As automated and autonomous vehicles become more prolific, good markings become even more critical for continued safe operation on mixed-use roads. These agencies are embarking on the challenge of assessing and managing the pavement markings of their entire roadway system.

Runway surface with the Mu-Meter friction measurement device.

A vehicle equipped with a Stripe Master SM2T Retro Reflectometer measures the markings on the surface.

The Role of Skidabrader Technology in Runway Safety

Advancements in technology have made runway friction measurement more accurate and efficient. Modern friction testing vehicles use laser sensors, GPS, and data analytics to provide real-time friction maps. This allows airport operators to make informed decisions quickly.

By leveraging Skidabrader technology, airports can enhance runway safety and reduce the risk of accidents.

Take action today: If you manage or operate an airport, consider reviewing your runway friction measurement program. Ensure your equipment is up to date, your staff is trained, and your maintenance schedule is proactive. Safe runways mean safe skies.