Figure 6 5.3. Development of the library of policies
Related Figures (13)
Two conceptual frameworks are especially important: included inside the dashed box in Figure 2(b)). regarding which measures to use and how to combine them to achieve the targets (the set of tasks Figure 3. Packages, measures, and pathways (based on (Banister & Hickman, 2006b)) Figure 4. Policy formulation process The proposed policy formulation framework is broken down into six steps (see Figure 4) 4.2. Proposed framework for policy formulation analyzed for cycles in order to acquire additional information to assist policy evaluation. The tree in Figure 6 represents several alternative policies. It is constructed incrementally using the Figure 7. Software architecture of the decision support system integration between Java and Mathematica is established using J/Link (J/Link, 2008). mathematics package Combinatorica (Pemmaraju & Skiena, 2003; Pemmaraju & Skiena, 2004). The Figure 9. Example policy measure and its preconditions systems” policy measure has the rest of the policy measures as its preconditions. ‘onvention for the direction of the relation: in this example the “Advanced traffic managemen This section describes the results achieved so far in the development of the decision support syste right hand side are preconditions to those in the left and thus should be implemented first. In the next step of the analysis, policy measures were grouped into different clusters based on the Some of the results from the analysis are presented in the rest of Section 7.1 and will be expanded information provided in the VIBAT project report. The main criterion for clustering was that the Figure 11. Network of preconditions based on manually created clusters significant differences existed among measures that related to a certain goal, measures were separated policy measures supporting the same overall goal should be grouped together. In the cases where Figure 12. Clustered network of preconditions with a directional flow from left to right to right). Policy measures in the same column have the same implementation time. Figure 13. A sample target and goals structure After creating the target and goals structure, the next step is to connect it with the policy measures, in Figure 14 A final view of the sample target and goals structure with the added layer of policy measures added layer of policy measures enabling the hybrid tree structure to grow automatically. measures. Figure 14 illustrates the final view of the user-generated target and goals structure with the Figure 15. Generation and visualization of the first branch of the tree tree in Figure 15 illustrates the point showing the full expansion of a single branch with 17 nodes. Growth of the tree as described follows a breadth-first methodology, where all of the leaf nodes grow Figure 15 depicts the generation of the tree branch based on the methodology described. The level of Figure 16. Example of a cycle in the network 7. Current Limitations and Future Work
