Asset Management

Infrastructure Deterioration Prediction with a Poisson Hidden Markov Model on Time Series Data

The deterioration of a pavement surface can be described in terms of the presence and severity of distinct distresses, like potholes, cracking, and rutting. Each deterioration process is ordinarily described by a set of pavement indicators (e.g., …

Optimal intervention strategies for multiple objects affected by manifest and latent deterioration processes

In the existing infrastructure management systems, optimal interventions strategies (OISs) are determined for objects that deteriorate gradually (manifest deterioration process, MDPs), under the assumption that with appropriate inspection and …

Investigation of the Use of a Weibull Model for the Deterioration of Optimal Road Link Intervention Strategies

In this paper, a probabilistic model for the determination of optimal intervention strategies (OISs) for a road link composed of multiple objects that are affected by gradual deterioration processes is investigated. The model is composed of a …

Use of Exponential Hidden Markov Models for Modeling Pavement Deterioration

In this paper, the potential of using an exponential hidden Markov model to model an indicator of pavement condition as a hidden pavement deterioration process, i.e. one that is not directly measurable, is investigated. It is assumed that the …

A statistical deterioration forecasting method using hidden Markov model for infrastructure management

The application of Markov models as deterioration-forecasting tools has been widely documented in the practice of infrastructure management. The Markov chain models employ monitoring data from visual inspection activities over a period of time in …

A Bayesian Estimation Method to Improve Deterioration Prediction for Infrastructure System with Markov Chain Model

In many practices of bridge asset management, life cycle costs are estimated by statistical de-terioration prediction models based upon monitoring data collected through inspection activities. In many applications, it is, however, often the case …

Deterioration Forecasting Model with Multistage Weibull Hazard Functions

In this paper, a time-dependent deterioration forecasting model is presented. In the model the deterioration process is described by transition probabilities, which are conditional upon actual in-service duration. The model is formulated by the …

A Benchmarking Approach to Pavement Management: Lessons from Vietnam

Stochastic Optimization Methods for Infrastructure Management with Incomplete Monitoring Data

Local mixtures hazard model: A semi-parametric approach to risk management in pavement system

One of the core techniques for the Pavement Management Systems (PMS) is the deterioration hazard model. The hazard models stochastically forecast the deterioration progresses of pavement based on its historical performance indicators over time. This …