01090138

Component

Several types of sensors, including position gauges, H-bar strain gauges, dowel-bar strain gauges, temperature sensors, moisture sensors, and optical fiber sensors, were embedded in concrete slabs on the N1 taxiway of Taoyuan International Airport during scheduled maintenance in January 2002. Piezoelectric position gauges were used to observe the aircraft lateral distribution pattern. It was found that aircraft mainly moved along the centerline (center lights), and the number of passes decreased on the both sides as a bell-shaped distribution. Moreover, all flights tended to have a shift to the left of center point and the standard deviation of the wandering pattern was 50.4 cm (19.8 in.). This standard deviation value is much smaller than what was found in the monitoring project conducted by Federal Aviation Administration (FAA) in 1975. Furthermore, this value is also smaller than the standard deviation value, 30.5 in. (77.5 cm), used in FAA design method. The standard deviation value would influence the pass-to-coverage (p/c) ratios of different aircraft types, the converted coverages, and the required thickness. However, it was found that the effect of the smaller standard deviation value on required slab thickness is minor based on the FAA¡¦s design concept.

01084478

08-0841

English

12p

2008

Transportation Research Board 87th Annual Meeting

DVD

Figures (3) ; References (11) ; Tables (3)

Aircraft; Airport runways; Concrete slab track; Landing fields; Moisture content; Pavement management systems; Sensors; Strain gages; Temperature sensors

Dowel bars; Lateral distribution

Aviation; Pavements; Terminals and Facilities; Vehicles and Equipment

Transportation Research Board Annual Meeting 2008 Paper #08-0841

TRIS, TRB

Jan 29 2008 3:10PM