A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
COMPARISON BETWEEN DESIGN BID BUILD AND DESIGN BUILD DELIVERY SYSTEM IN FEDERAL ROAD PROJECTS
Road connectivity is one of the key components for development, as it promotes access to economic and social services, generating increased income and employment. However, the construction of such economically vital sector is the most expensive of public works project undertaken by the society. By taking in to consideration relationship between infrastructure development and economical development of the country Ethiopia has been engaged in road construction development in an organized manner since 1951 when the government of Emperor Hailesellasie regime established the imperial Highway Authority. With the help of World Bank funds and with technical assistance from the United States Bureau of public Roads, the development of Ethiopia’s highway system continued. Hence modern and effective road sector construction demands proper contract delivery system. These systems have been developed with time in order to narrow the gap that has been observed in design bid build. It have been observed with different previous research that project could not meet their budgeted time and cost in traditional delivery system (DBB) . In this research paper it has been tried to compare design bid build and design build delivery system in federal road projects. By interviewing key personnel from client (Ethiopian road authority), contractors and consultants in the mean time two projects have been taken as a case study one with design bid build the other with design build. In the case study Nekemte-Mekenajo is taken as DBB on the other hand Alamata-Mehoni-Hewane is taken as DB project. Factors to consider project delivery system are complexity of project, Project size (cost estimate), demanding of early contractor involvement desired or not, is price or qualifications the driving factor in selection or not, Single point responsibility over multiple contracts and Project schedule requirements. It is concluded that generally projects that are using design bid build are subjected for cost overrun, time overrun, exposed huge amount of variation, they are also fragmented and initial bid price is relatively lower. Whereas projects with design build are likely to be completed with scheduled budget cost and time, it is observed that variations are less even though initial project cost is high.
COMPARISON BETWEEN DESIGN BID BUILD AND DESIGN BUILD DELIVERY SYSTEM IN FEDERAL ROAD PROJECTS
Road connectivity is one of the key components for development, as it promotes access to economic and social services, generating increased income and employment. However, the construction of such economically vital sector is the most expensive of public works project undertaken by the society. By taking in to consideration relationship between infrastructure development and economical development of the country Ethiopia has been engaged in road construction development in an organized manner since 1951 when the government of Emperor Hailesellasie regime established the imperial Highway Authority. With the help of World Bank funds and with technical assistance from the United States Bureau of public Roads, the development of Ethiopia’s highway system continued. Hence modern and effective road sector construction demands proper contract delivery system. These systems have been developed with time in order to narrow the gap that has been observed in design bid build. It have been observed with different previous research that project could not meet their budgeted time and cost in traditional delivery system (DBB) . In this research paper it has been tried to compare design bid build and design build delivery system in federal road projects. By interviewing key personnel from client (Ethiopian road authority), contractors and consultants in the mean time two projects have been taken as a case study one with design bid build the other with design build. In the case study Nekemte-Mekenajo is taken as DBB on the other hand Alamata-Mehoni-Hewane is taken as DB project. Factors to consider project delivery system are complexity of project, Project size (cost estimate), demanding of early contractor involvement desired or not, is price or qualifications the driving factor in selection or not, Single point responsibility over multiple contracts and Project schedule requirements. It is concluded that generally projects that are using design bid build are subjected for cost overrun, time overrun, exposed huge amount of variation, they are also fragmented and initial bid price is relatively lower. Whereas projects with design build are likely to be completed with scheduled budget cost and time, it is observed that variations are less even though initial project cost is high.
COMPARISON BETWEEN DESIGN BID BUILD AND DESIGN BUILD DELIVERY SYSTEM IN FEDERAL ROAD PROJECTS
HABTAMU GEBREYOHANNES (author) / Habtamu Zelelew(Dr (author)
2017-01-01
doi:10.20372/nadre:1548591610.89
Theses
Electronic Resource
English
DDC:
690
COMPARISON BETWEEN DESIGN BID BUILD AND DESIGN BUILD DELIVERY SYSTEM IN FEDERAL ROAD PROJECTS
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