01366209

Component

Runway friction under wet pavement condition is an important factor to ensure safety of landing aircrafts. Aircraft braking performance and cornering capabilities depend on the level of pavement friction available at the aircraft-tire pavement interface. During wet weather, pavement skid resistance reduces substantially from its dry weather value. Reduced skid resistance can lead to longer braking distance and reduced directional control. This may increase the risk of runway excursion. Runway pavement grooving has been commonly constructed to overcome these problems. Experimental studies have demonstrated the benefits of pavement grooving in improving the skid resistance during wet pavement conditions and reducing the risk of hydroplaning. This paper presents an analytical approach to evaluate the beneficial effect of pavement grooving on runway skid resistance under wet weather conditions. An analytical simulation model is first developed to evaluate the wet-pavement skid resistance available to an aircraft on a grooved pavement under a given set of operating conditions. The operating conditions are defined by parameters such as aircraft speed, tire structural properties, pavement surface properties, wheel load, tire inflation pressure, and pavement surface water-film thickness. A numerical example is presented to illustrate the application of the procedure to compute the braking distance of a landing aircraft.

01362476

12-0709

English

23p

2012

Transportation Research Board 91st Annual Meeting

Digital/other

Figures; References; Tables

Airport runways; Braking performance; Friction; Pavement grooving; Skid resistance; Wet weather

Aviation; Design; Pavements; I22: Design of Pavements, Railways and Guideways

Transportation Research Board Annual Meeting 2012 Paper #12-0709

TRIS, TRB

Feb 8 2012 4:56PM