Potentials for added value in highway investments predicated on ground condition in the Niger Delta

Amadi, AI and Eaton, D 2015, 'Potentials for added value in highway investments predicated on ground condition in the Niger Delta' , Proceedings 12th International Postgraduate Research Conference (IPGRC15) , pp. 707-718.

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Abstract

The Niger Delta is a typical tropical delta crisscrossed by a myriad of streams, rivers and inland water channels. It is a heterogeneous terrain associated with varying geological formations with a significant proportion having difficult expansive clayey sub-soils. This implies that any form of construction work in the region will come with its technical and financial implications, clearly underscoring the need to manage and analyze uncertainties associated with the difficult terrain. The high element of financial risk associated with construction work in the region has been noted and emphasized by a wide range of scholars in related studies on Niger delta soils. The problem of ineffective investments on road construction in the Niger Delta has become a subject of grave concern to government. Delays and abandonment of projects are endemic in the region despite the present budgetary allocation for road infrastructure in the region, which ranges between 60 - 70% of annual capital expenditure. Extensive areas of the Niger delta basin are not traversed by roads due to construction difficulties and the costs associated with road construction in the region. Recurring themes in the present scenario of road project planning, design and estimation, to which this has been attributed, are that of poor value management and risk perceptions in relation to ground conditions. Against this backdrop, the study seeks to identify various potential value adding/cost saving avenues revolving around ground conditions, for investment in road development in the Niger Delta. A survey of technical literature on the financial implications of ground risks and what it portends for investment in highway development in the Niger Delta is carried out. The literature reveals that increased value for money expended on road projects can be achieved at the Feasibility, Planning, Design and Contractual phases of highway development based on an adequate understanding of the terrain. However, there are evident gaps in the literature that critically addresses the potential for added value for investments, predicated on improving the accuracy of conceptual and tender estimates for highway projects. The development of a costing prototype using engineering geological mapping, and guidelines relevant for improving the accuracy of estimates predicated on ground conditions is thus proposed. This will in effect serve as a risk minimization /value adding measure for investment in highway development in the region.

Item Type: Article
Schools: Schools > School of the Built Environment > Centre for Built Environment Sustainability and Transformation (BEST)
Journal or Publication Title: Proceedings 12th International Postgraduate Research Conference (IPGRC15)
Publisher: University of Salford
Depositing User: AI Amadi
Date Deposited: 01 Feb 2017 12:46
Last Modified: 09 Aug 2017 22:56
URI: http://usir.salford.ac.uk/id/eprint/41301

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