Calibration of HDM-4 models for Indian conditions of flexible pavement having modified bitumen in wearing course

Deori, Sanjay; Choudhary, Rajan; Tiwari, Diwakar; Gangopadhyay, S

doi:10.1080/10298436.2016.1208196

Cited by 15 publications

(2 citation statements)

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“…The models are crucial for the development of pavement maintenance and management strategies for road corridors. A study was performed for deterioration modelling of flexible pavement sections with modified binders in the AC wearing course using HDM-4 tool (Deori, Choudhary, Tiwari, & Gangopadhyay, 2016). Twentythree in-service flexible pavement road sections were selected from the NHDP corridors in India.…”

Section: Research Need and Objectivesmentioning

confidence: 99%

“…Calibration factors were modified, and HDM-4 was re-run until the errors between observed distress and distress predicted by HDM-4 were minimised. Details of the calibration process and calibration factors developed are beyond the scope of this paper and are presented elsewhere (Deori 2018;Deori, Choudhary, Tiwari, & Gangopadhyay, 2016). This paper is aimed at validation and adaptation of different distress models of HDM-4 for Indian conditions.…”

Section: Calibration Of Hdm-4 Deterioration Modelsmentioning

confidence: 99%

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HDM-4 Deterioration Modelling: Validation and Adoption for Flexible Pavements With Modified Bituminous Road Surfacing

Deori¹,

Choudhary²,

Tiwari³

et al. 2019

BJRBE

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Highway Development and Management (HDM-4) is an internationally recognised tool to analyse pavement management and investment alternatives. The HDM-4 pavement deterioration models help to predict the initiation and progression of various pavement distresses under the different combinations of traffic, climate, pavement structure, and composition. Since the rate of initiation and propagation of each pavement distress is strongly dependent on local conditions, it is essential to calibrate and validate the HDM-4 models for local conditions before their use. Validation of the calibrated HDM-4 pavement deterioration models is needed to check the adequacy of the calibration factors before the model is put to use for future applications. Time series data collected Sanjay Deori, Rajan Choudhary, Devesh Tiwari, Abhinay Kumar HDM-4 Deterioration Modelling: Validation and Adoption for Flexible Pavements with Modified Bituminous Road Surfacingconsecutively for three years of 23 high-speed corridors sections constructed with modified binders in India was used to calibrate the HDM-4 distress models. The main aim of this paper is to discuss the validation aspects of the calibrated HDM-4 models, to compare the distresses predicted to those observed on test sections. In this study, a novel technique termed the "proximity to the line of equality" approach is used to validate the HDM-4 models. In addition, Student's t-test is also used as a conventional validation technique. The advantage of the "proximity to the line of equality" approach is that it removes subjectivity associated with judging the nearness of best-fit straight line of predicted-observed data to the line of equality. Validation results show that distresses predicted by HDM-4 are statistically similar to those observed on the sections. Therefore, the calibrated HDM-4 models can be adopted for planning future maintenance strategies for flexible pavement sections with modified asphalt binder road surfacing.

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Section: Research Need and Objectivesmentioning

confidence: 99%

Section: Calibration Of Hdm-4 Deterioration Modelsmentioning

confidence: 99%