Productivity Rate Affecting Factors for a Highway Project

Ermias Amede¹

1. Construction management, EiABC, AAU, Addis Ababa, Ethiopia.

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.1 , pp.32-36, Mar-2020

Online published on Apr 10, 2020

Copyright © Ermias Amede . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Prior determination of productivity rate has a practical impact on time and cost estimates of highway projects. The accuracy of productivity rate measurement is highly related to how successfully one identifies and uses the critical factors affecting the productivity rate. Hence it is crucial to distinguish the critical productivity factor in highway construction projects. This study was initiated to identify and study the impact of critical factors that are affecting the productivity rate of highway construction earthwork. Given the dynamic and context-dependent nature of productivity, the study reviewed exhaustive works of literature and employed multiple embedded case studies to address the mentioned objectives of the study. Based on the cross-case and statistical analysis, it was found that the critical factors affecting the productivity rate of soft excavation were allowable working space or width of clearance, working hour, weather conditions (temperature, atmospheric pressure, and rainfall). Whereas for hard excavation, the critical factors that affect productivity rate were terrain type, the width of clearance, working hour, weather conditions (temperature, and cloud cover).

Key-Words / Index Term :
Productivity rate, productivity affecting factors, Highway earthwork construction

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