Examination of the Impact of Value Engineering Implementation on the Overall Maintenance Performance of Gravel Roads Maintenance Projects in Tanzania

Abstract

Despite significant advancements in road infrastructure, the Tanzania gravel roads (GR) network continues to face challenges, with a staggering 65 percent of the network still remaining in poor condition. Hence, this paper examines the impact of value engineering (VE) implementation on the overall maintenance performance of gravel road maintenance projects in Tanzania using a partial least squares (PLS) structural equation modeling approach. The results revealed a strong positive relationship between VE principles implementation and the overall performance, accounting for 83.3% of the variance. In advancing the current state-of-the-practice in GR projects maintenance management, this study enhances understanding of VE phases, maintenance-related methods, and activities. These findings serve as a benchmark for decision-makers seeking to enhance projects performance in Tanzania, with potential applicability to regions facing similar climate and weather conditions worldwide.