Collins Ameyaw - Academia.edu (original) (raw)

Papers by Collins Ameyaw

International journal of building pathology and adaptation, Jun 20, 2024

Purpose – The lack of carbon emission reduction strategies specifically devised for buildings in ... more Purpose – The lack of carbon emission reduction strategies specifically devised for buildings in urban areas in developing countries has affected the global course of tackling carbon emissions. The purpose of this study is to identify the causes of carbon emissions from buildings in urban settings in Ghana and generate specific reduction strategies. Design/methodology/approach – The study was conducted with reference to Kumasi Metropolis, an urban area in Ghana. Adopting a survey research design, data obtained from 106 built environment professionals (BEP) were analyzed using Garrett’s mean ranking and factor analysis (FA) techniques. Findings – Urban buildings’ carbon emissions in the study area are attributable to construction, demolition energy consumption, technological and economic factors. The strategies emerging from the study emphasize organizational and governmental policy and regulatory factors, as well as the adoption of indigenous sustainable materials and technology. Practical implications – BEPs and construction industry regulatory bodies will have to consider socioeconomic characteristics of a specific location in the development of organizational and localized carbon emission reduction policies. Social implications – Local authorities who plan economic activities such as trading and associated taxation in urban areas in developing countries should consider the climate change implications of such socioeconomic activities. Originality/value – This is one of the first studies that has conceived carbon emission causes and reduction strategies within the context of a typical developing country’s urban setting to overcome the pragmatic challenges associated with past carbon emission reduction frameworks.

The Public Procurement Act (Act 663) 2003 was introduced in Ghana to streamline the anomalies in ... more The Public Procurement Act (Act 663) 2003 was introduced in Ghana to streamline the anomalies in public procurement. The objective of the law is to promote fairness, transparency and ensure that public procurement is non-discriminatory. The implementation of the Public Procurement Act 2003 (PPA) has been quiet challenging coupled with a number of inefficiencies. The aim of this study is to observe and compare the extent to which selected public procurement entities have complied with the processes and requirements of the Law during the year 2008. The entities were chosen from the Ashanti and Brong Ahafo regions of Ghana. Structured questionnaire and face-to-face interviews were used to obtain data for this study. The overall compliance levels in the Ashanti and Brong Ahafo Regions lies at 19.58 % and 17.8% respectively. This indicates low compliance levels of public entities. The study confirms that the Public Procurement Act 2003 (Act 663) is observed to proffer solutions but not w...

PurposeThe purpose of this study was to determine the transaction cost (TC) contractors incur whe... more PurposeThe purpose of this study was to determine the transaction cost (TC) contractors incur when tendering for a project as well as establish a correlation between the TC of tender and tender amount of projects procured through the national competitive bidding procurement method.Design/methodology/approachThe research draws extensively documentary analysis, observation and interviews to collect cost data on 14 different tenders submitted by a D1/K1 contractor. Using TC theory, the data are analyzed and the actual cost is determined. Further, Spearman rank correlation is employed to establish a relationship between tender price (TP) and the cost of tender by the aid of Statistical Package for Social Sciences.FindingsThe research developed a tender preparation conceptual framework highlighting the components of TC in competitive tendering in Ghana and also revealed that, apart from the emotional and psychological costs, contractors in Ghana incur approximately Gh₵ 4,625 (US$ 925)–Gh...

Public procurement is perceived to be susceptible to corruption from project inception to complet... more Public procurement is perceived to be susceptible to corruption from project inception to completion. There is ample evidence across the world that corruption hinders economic development; reduces social services; diverts investments in infrastructure and social services and impacts the poor disproportionately The study assesses the perceptions of procurement professionals; specifically practicing quantity surveyors on the existence of corruption in the procurement process and also establishes the stages in the procurement process fraught with corrupt practices. A survey research design was employed and purposive sampling technique adopted. Descriptive statistics, relative importance index and one sample t-test were adopted in analyzing the data. This research results confirmed the perception that corruption exists in public procurement in Ghana. It also revealed that the public procurement law is contributing immensely in curbing corruption. The study further revealed that corrupti...

This study therefore assesses the perceptions of procurement professionals; specifically practici... more This study therefore assesses the perceptions of procurement professionals; specifically practicing quantity surveyors on the existence of corruption in the procurement process and also to establish which of the stages are highly susceptible to corruption. A survey research design was employed and purposive sampling technique adopted. Descriptive statistics, relative importance index and one sample ttest were used in analyzing the data. This research results confirmed the perception that corruption exists in public procurement in Ghana. It also revealed that the public procurement law is contributing immensely in curbing corruption. The study further revealed that corruption is more prevalent at the tender evaluation stage of the procurement process. * 1,2Department of Building Technology, Kumasi Polytechnic, Ghana 3Building Road and Research Institute, Kumasi, Ghana IMPROVING TRANSPARENCY IN PULIC PROCUREMENT IN GHANA

Purpose Over dependence on river/sea sand as building material has impacted the environment negat... more Purpose Over dependence on river/sea sand as building material has impacted the environment negatively. However, laterite, which is an environment-friendly indigenous building material in sub-Saharan Africa, has been less exploited as a suitable alternative. This paper aims to ascertain the optimum cement–laterite mix proportion at which laterite can be stabilized for production of walling units. Design/methodology/approach Using an experimental method, laterite was collected from three borrow pit sites. Sieve analysis was performed to determine the particle size distribution. Also, the degree of workability of the cement–laterite mix was ascertained using slump test. Compressive strengths were determined at cement stabilization percentages of 3%, 7% and 10% on 12 cubes of100 mm cast and cured for 14 and 28 days, respectively. Findings The results showed that the lateritic soil investigated, achieves its optimum strength in 28 days of curing, at a stabilization level of 10%. An aver...

Purpose: The objective of this study was to assess the perceptions of the players in Ghana's ... more Purpose: The objective of this study was to assess the perceptions of the players in Ghana's Construction industry (GCI) on the pervasiveness of conflict of interest and corruption in the industry. Research Design: The study involved the undertaking of an extensive literature review on the subject matter. Additionally, employing the principles of a "survey approach to research", a questionnaire was developed, which sought to primarily establish, which of the stages of the procurement process was most susceptible to corruption and acts of conflict of interest Purposive sampling was utilized and descriptive statistics and relative importance index were used to analyze the data. Research Limitations: The use of purposive sampling limited the survey to the participants of the procurement forum. Findings: From the study, acts of conflict of interest and corrupt practices are still pervasive in the construction industry and the tender stage, contract execution stage and fina...

Public Policy and Administration Research, 2013

A Thesis submitted to the Department of Building Technology, Kwame Nkrumah University of Science ... more A Thesis submitted to the Department of Building Technology, Kwame Nkrumah University of Science and Technology in partial fulfilment of the requirements for the degree of Master of Science in Construction Management, April-2009

International Journal of Construction Management

International Journal of Building Pathology and Adaptation

PurposeThis study aimed at developing and empirically testing a system dynamics causal loop (SDCL... more PurposeThis study aimed at developing and empirically testing a system dynamics causal loop (SDCL) model for investigating factors related to the risk of cost overruns, associated with the performance of construction projects in developing countries.Design/methodology/approachUsing data derived from the Ghanaian construction industry (GCI), a conceptual system dynamics model was hypothesised and empirically tested.FindingsSupported by empirical evidence, the study established that the low technical capacity of consultants is the underlying cause of cost overruns in government projects. There is a strong proof of the relationship between the results of the SDCL model and poor contract planning and supervision, change orders, competence of the project team and the lack of effective coordination amongst the contractual parties.Practical implicationsThe final SDCL model has revealed key risk components that would require standard mitigation measures in order to achieve “acceptable succe...

Systemic Practice and Action Research

Journal of Facilities Management, 2017

Purpose The purpose of this paper is to identify the risks associated with private sector partici... more Purpose The purpose of this paper is to identify the risks associated with private sector participation (PSP) in power generation (PG) projects, how they were allocated and the strategies used to mitigate their likely adverse effects. Design/methodology/approach The paper adopts case study research method and cross-case analyses to unearth the key risks and the contractual instruments used to manage them. Findings The paper identified 30 risk factors associated with four major private sector PG projects in Ghana. The allocation and mitigation strategies of these risks are also reported. Originality/value This is the first study to create a risk register of PSP PG projects. Private investors and government have been provided with a comprehensive list of risks associated with PG infrastructure. Would-be investors have also been armed with some potential risk management strategies for proper project structuring.

Unknown 275 Unknown Unknown 356 1800 285 Unknown NO. OF FLOORS 1 1 2 3 2 2 1 1 AVERAGE FLOOR HEIG... more Unknown 275 Unknown Unknown 356 1800 285 Unknown NO. OF FLOORS 1 1 2 3 2 2 1 1 AVERAGE FLOOR HEIGHT (M)

Public Policy and Administration Research, 2013

The practice of procurement in Ghana seems to have neglected sustainability considerations. The p... more The practice of procurement in Ghana seems to have neglected sustainability considerations. The purpose of this paper is to ascertain the extent to which public procurement practice in Ghanaian construction industry incorporates sustainability and the challenges that faces the practice of Sustainable Procurement (SP). First, procurement practitioners were interviewed to find out their understanding of SP in light of the environmental, economical and social goals of SP, and to also identify challenges that face the practice of SP in Ghana. Second, RII analysis was performed to measure the significance of challenges identified through the interview and from literature. It was found out that, by perception, SP is adequately addressed by the Procurement Law operating in Ghana; Act 663 (2003). However, among practitioners interviewed, there exists low level of awareness and understanding of the environmental, economic and social concerns of SP. Lack of understanding of the SP concept was determined as a major challenge that faces its practice in Ghana.

The Public Procurement Act (Act 663) is an ACT passed in 2003 to regulate public procurement in G... more The Public Procurement Act (Act 663) is an ACT passed in 2003 to regulate public procurement in Ghana. The purpose of this law was to promote fairness, transparency and ensure that public procurement is carried out in non-discriminatory manner. The adoption of the Act has been faced with several challenges since its introduction in 2003. The aim of this study was to identify various bottlenecks hampering the smooth implementation of the law and attempt to suggest possible remedies for identified challenges. The study adopted multiple research approach; which include; review of relevant literature, interview and questionnaire survey of 49 District Assemblies and Metropolitan and Municipal Assemblies in the Ashanti and Brong Ahafo Regions of Ghana. The study identified; inadequate funding, political interference, poor dissemination of procurement information, low capacity of procurement managers were identified as the major challenges to the smooth implementation of the public procurement law in Ghana. The ability of procurement officials to ensure strict conformance with the law without political interference, would ensure that the objects of the Law are achieved.

Journal of Financial Management of Property and Construction, 2015

International journal of building pathology and adaptation, Jun 20, 2024

Public Policy and Administration Research, 2013

International Journal of Construction Management

International Journal of Building Pathology and Adaptation

Systemic Practice and Action Research

Journal of Facilities Management, 2017

Public Policy and Administration Research, 2013

Journal of Financial Management of Property and Construction, 2015