Comparison of runway roughness evaluation methods under measured unevenness excitation#br#

Abstract

Abstract: In the latest version of runway evaluation, the evaluation index of runway roughness is revised as IRI and BBI without their adaptability. Currently, few studies focus on the actual application effect of these two methods. The comparison and analysis process of runway roughness evaluation methods based on Matlab is proposed, taking measured 3D roughness data of a certain airport runway in East China as instance, the relation between IRI and BBI indices and the dynamic responding characteristics of aircraft taxiing is explored in a multi-dimensional way. Results show that the correlation between BBI and IRI is poor, and the overall correlation coefficient is only about 0.1. From the prediction of aircraft acceleration RMS distribution trend, BBI is more capable than IRI by 3.6 times. It is suggested that in the latest version of the specification considers BBI as main evaluation index and IRI as auxiliary index. In the region with poor roughness, a more scientific and reasonable maintenance decision should be made by taking both of them into comprehensive consideration.

Key words: airport pavement, runway roughness, measured unevenness excitation, evaluation index

CLC Number:

V351.11

LING Yingqi, LIU Shifu, LIN Sheng, WU Lei, BIN Xueyang. Comparison of runway roughness evaluation methods under measured unevenness excitation#br#[J]. Journal of Civil Aviation University of China, 2019, 37(3): 27-32.

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