Optimization of the maintenance strategies of roads in Morocco: calibration study of the degradations models of the highway development and management (HDM-4) for flexible pavements

Bannour, Abdelilah; Omari, Mohamed El; Lakhal, El Khadir; Afechkar, Mohamed; Benamar, Ahmed; Joubert, P

doi:10.1080/10298436.2017.1293261

Cited by 20 publications

(6 citation statements)

References 12 publications

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“…The analysis showed that out of 65 sections, 29 sections proved costeffective for maintenance alternatives. The study reported by Bannour, El Omari, Lakhal, Afechkar, Benamar, & Joubert (2019) distresses, a good agreement was reported with some overestimations for roughness results. Several other studies have been reported in other countries on calibration, validation and adaptation of HDM-4 pavement deterioration models toward the development of optimal maintenance management strategies for road network (Jiao & Bienvenu, 2015;Ognjenovic, Krakutovski, & Vatin, 2015;Yogesh, Jain, & Devesh, 2016).…”

Section: Introductionsupporting

confidence: 55%

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: Introductionsupporting

confidence: 55%

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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“…Therefore, knowledge regarding rate of gravel loss is crucial to an accurate and ideal decision on its re-graveling cycle (Mwaipungu and Allopi, 2014). Bannour et al (2019) concluded that HDM-4 pavement deterioration models are insufficient to develop an optimal maintenance management strategy for road networks in Morocco.…”

Section: Gravel Loss Prediction Modelsmentioning

confidence: 99%

Field Assessment of Gravel Loss on Unsealed Roads in Australia

Pardeshi

Nimbalkar

Khabbaz

2020

Front. Built Environ.

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The gravel loss is a major limitation for unsealed roads and it needs major maintenance annually. The continual process of gravel loss leads to the unsustainability of these roads. The unsealed road management faces several issues, viz., difficulty to forecast behavior, huge data collection needs, and a vulnerability in the service and maintenance practices. The quality of gravel material also plays a major role in the process of gravel loss. In view of the aforementioned, appropriate revisions to ARRB material specifications are proposed in this study. The gravel material as per modified ARRB specifications is used on the unsealed road network in the Scenic Rim Regional Council in the state of Queensland. Gravel loss monitoring stations were established over the entire region in order to assess the gravel loss and the implication of using a better quality of gravel material. This study discusses the gravel loss monitoring approaches, data analyses, and improved material specification for gravel. It is found that the modified gravel used on unsealed road performs better than conventionally used gravel.

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“…Maintenance technologies are composed of corrective maintenance and preventive maintenance. Preventive maintenance is constructed before appearance of distress and is more cost-effective compared with corrective maintenance that is generally used after distress has developed [7][8][9][10]. It can effectively reduce degradation rate of service performance, improve skid resistance and reduce maintenance costs.…”

Section: Introductionmentioning

confidence: 99%

Profile Features of Emulsified Asphalt Mixture Containing Steel Slag Based on Laser Scanning

et al. 2020

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Micro-surfacing (MS), made of emulsified asphalt, is the most commonly used preventive maintenance technology in asphalt pavement. However, the studies on profile features of MS based on aggregate morphology are few. This study evaluated the profile features of MS and its effect on skid resistance. The aggregate morphologies were first characterized and modified emulsified asphalt was prepared. The three-dimensional profile features of four kinds of MS samples were captured by laser texture scanner. Results illustrate that steel slag aggregate can be used to enhance the skid resistance of pavement surface and bring about larger profile indexes than basalt and limestone due to its angularity index and flatness values. Further aging of steel slag to eliminate free calcium oxide (f-CaO) is recommended before being used in pavement surface layer.

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Optimization of the maintenance strategies of roads in Morocco: calibration study of the degradations models of the highway development and management (HDM-4) for flexible pavements

Cited by 20 publications

References 12 publications

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

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

Field Assessment of Gravel Loss on Unsealed Roads in Australia

Profile Features of Emulsified Asphalt Mixture Containing Steel Slag Based on Laser Scanning

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