Feasibility Risk Assessment of Transport Infrastructure Projects: The CBA-DK Decision Support Model

Kim Bang Salling, David Banister

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    This paper presents the final version of the CBA-DK decision support model for assessment of transport projects. The model makes use of conventional cost-benefit analysis resulting in aggregated single point estimates and quantitative risk analysis using Monte Carlo simulation resulting in interval results. Two special concerns in this paper is firstly the treatment of feasibility risk assessment adopted for evaluation of transport infrastructure projects, and secondly whether this can provide a more robust decision support model. This means moving away from a single point estimate to an interval result, and the determination of suitable probability distributions. Use is made of the reference class forecasting information, such as that developed in Optimism Bias for adjustments to investment decisions that relate to all modes of transport. The CBA-DK decision support model results in more informed decision support towards decision-makers and stakeholders in terms of accumulated descending graphs. The decision support method developed in this paper aims to provide assistance in the analysis and ultimately the choice of action, while accounting for the uncertainties surrounding any transport appraisal scheme.
    Original languageEnglish
    JournalEuropean Journal of Transport and Infrastructure Research
    Volume10
    Issue number1
    Pages (from-to)103-120
    ISSN1567-7133
    Publication statusPublished - 2010

    Keywords

    • Transport Assessment
    • Reference Class Forecasting
    • Cost-Benefit Analysis
    • Risk Analysis
    • Decision Support System

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