A highway construction cost index (HCCI) is an indicator of the purchasing power of a highway agency. Thus, it must reflect the actual construction market conditions. However, current methods used by most state departments of transportation are not robust enough to meet this primary goal due to (1) a significantly insufficient sample size of bid items used in HCCI calculation; and (2) inability to address the need to track highway construction market conditions in specific submarket segments such as, but not limited to, various project types, sizes, and locations. This study proposes an advanced methodology to overcome these apparent limitations using two new concepts: (1) dynamic item basket; and (2) multidimensional HCCIs. The dynamic item basket process identifies and utilizes an optimum amount of bid-item data to calculate HCCIs in order to minimize the potential error due to a small sample size, which leads to a better reflection of the current market conditions. Multidimensional HCCIs dissect the state highway construction market into distinctively smaller sectors of interest and thus, allow state Departments of Transportation to understand the market conditions with much higher granularity. A framework is developed to integrate these two concepts and a standalone prototype system, named the Dyna-Mu-HCCI System, is developed to automate the data-processing part of the framework. The historical bid data of the Montana Department of Transportation are used to evaluate the performance of the Dyna-Mu-HCCI System and measure the effects of the dynamic item basket (DIB) and multidimensional HCCIs. The results show an eightfold increase in terms of the number of bid items used in calculating HCCIs and at least a 20% increase in terms of the total cost of bid items used. In addition, the multidimensional HCCIs reveal different cost-change patterns from different highway sectors. For example, the bridge construction market historically shows a very different trend compared with the overall highway construction market. The new methodology is expected to aid state Departments of Transportation in making more-reliable decisions in preparing business plans and budgets with more accurate and detailed information about the construction market conditions. Further, the prototype Dyna-Mu-HCCI System is expected to significantly facilitate the HCCI calculation process and rapidly implement this new system.

The theme running through this dissertation is intended to prove that the Supreme Court has a role to play in the promotion, enforcement and sustenance of a proper democratic system of government, good governance and fundamental human rights and freedoms in Ghana. The Study would therefore address the role of the Supreme Court in the development of Constitutional Law in Ghana, with particular emphasis on the court's contribution to the underlying concepts of the Fourth Republican Constitution of 1992; the guiding principles of constitutional interpretation and the vexed issue of whether the court should adopt a mechanical and literal approach to the interpretation of the Constitution or adopt a liberal, beneficent and purposive approach. The Supreme Court has asserted in the locus classicus decision: Tuffuor v Attorney-General [1980] GLR 637 that the 1979 Constitution as the supreme law, must be construed as a living political document capable of growth. Is there any evidence now to support that claim? The study shall also investigate the question of the power of the Supreme Court to review legislative and executive action. We shall also examine the role of the Supreme Court in the interpretation and enforcement of the Constitution and Fundamental Human Rights and Freedoms in relation to the rights and obligations of the individual and the State with the view to achieving good governance. The 1992 Constitution itself is founded on the premise that there are limitations to the enjoyment of fundamental human rights and freedoms. What is the extent of such limitations as determined by the Supreme Court? What has been the Supreme Court's contribution to the sustenance of political stability and democratic governance and, especially, in matters relating to coup d'etats and to enforcement of the Constitution itself as distinct from the enforcement of fundamental human rights and freedoms? Has the Supreme Court power to enforce the Constitution and the existing law where there is proven case of injustice and illegality? Has the Supreme Court power to enforce Directive Principles of State Policy as formulated in chapter 6 of the 1992 Ghana Constitution? / Jurisprudence / LL.D.

The theme running through this dissertation is intended to prove that the Supreme Court has a role to play in the promotion, enforcement and sustenance of a proper democratic system of government, good governance and fundamental human rights and freedoms in Ghana. The Study would therefore address the role of the Supreme Court in the development of Constitutional Law in Ghana, with particular emphasis on the court's contribution to the underlying concepts of the Fourth Republican Constitution of 1992; the guiding principles of constitutional interpretation and the vexed issue of whether the court should adopt a mechanical and literal approach to the interpretation of the Constitution or adopt a liberal, beneficent and purposive approach. The Supreme Court has asserted in the locus classicus decision: Tuffuor v Attorney-General [1980] GLR 637 that the 1979 Constitution as the supreme law, must be construed as a living political document capable of growth. Is there any evidence now to support that claim? The study shall also investigate the question of the power of the Supreme Court to review legislative and executive action. We shall also examine the role of the Supreme Court in the interpretation and enforcement of the Constitution and Fundamental Human Rights and Freedoms in relation to the rights and obligations of the individual and the State with the view to achieving good governance. The 1992 Constitution itself is founded on the premise that there are limitations to the enjoyment of fundamental human rights and freedoms. What is the extent of such limitations as determined by the Supreme Court? What has been the Supreme Court's contribution to the sustenance of political stability and democratic governance and, especially, in matters relating to coup d'etats and to enforcement of the Constitution itself as distinct from the enforcement of fundamental human rights and freedoms? Has the Supreme Court power to enforce the Constitution and the existing law where there is proven case of injustice and illegality? Has the Supreme Court power to enforce Directive Principles of State Policy as formulated in chapter 6 of the 1992 Ghana Constitution? / Jurisprudence / LL.D.