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transport of dangerous goods and risk management - Kirilo Savić

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TRANSPORT OF DANGEROUS GOODS AND RISK MANAGEMENT 218• the number <strong>of</strong> points for possession <strong>of</strong> appropriate certificates:BSiRtez Si (8)B BS maxRtez = 19 - relative weight <strong>of</strong> criteria,BS <strong>and</strong> - the number <strong>of</strong> drivers <strong>and</strong> the bidders-certified,BS max – the maximum number <strong>of</strong> drivers with certificates <strong>of</strong>fered.When calculated for each bid the number <strong>of</strong> points for each parameter, the calculation <strong>of</strong> the arithmetic mean <strong>of</strong> theobtained points is performed, <strong>and</strong> that data comes in multi-criteria evaluation, as an information on technical <strong>and</strong>technological characteristics <strong>of</strong> a particular bidder.In the described model, the importance <strong>of</strong> applying methods <strong>of</strong> multi-criteria evaluation in choosing the winning bidis. Analyzing the nature <strong>of</strong> the problem <strong>of</strong> choice <strong>of</strong> a <strong>transport</strong> company, the method <strong>of</strong> analytical hierarchy processst<strong>and</strong>s out as the most suitable, as it provides a complete ranking <strong>of</strong> alternatives based on multiple criteria with thepossibility <strong>of</strong> decomposing the problem on several levels.In Figure 3 was performed the decomposition into a hierarchical structure <strong>of</strong> the problem <strong>of</strong> the <strong>transport</strong> companychoice for the needs <strong>of</strong> <strong>transport</strong> <strong>of</strong> <strong>dangerous</strong> <strong>goods</strong>.Level 1GoalThe choice <strong>of</strong> carriersLevel 2CriteriaC-1PriceC-2quality <strong>of</strong> <strong>transport</strong>servicesC-3Terms <strong>of</strong>paymentC-4Technical <strong>and</strong>technologicalcharacteristicsLevel 3Sub-criteriaSc 1Sc 2Sc 3Sc s Sc s+1Level 4AlternativeOffer No. 1Offer No. 2Offer No. 3Offer No. nFigure 3. The hierarchy model <strong>of</strong> choice <strong>of</strong> <strong>transport</strong> enterprisesThus defined hierarchical structure is transferred to the s<strong>of</strong>tware package Expert Choice [6], that leads in a couple<strong>of</strong> steps to the final ranking <strong>of</strong> alternatives, Figure 4. In order to view the possibility <strong>of</strong> using this method, values <strong>of</strong>four bidders are included into the s<strong>of</strong>tware.

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