A Qualitative Study of Time Overrun of Completed Road Projects Awarded by the Niger Delta Development Commission in the Niger Delta Region of Nigeria

Autor:	F. N. Ogbeide, J. O. Ehiorobo, O. C. Izinyon, I. R. Ilaboya
Rok vydání:	2021
Předmět:	010101 applied mathematics 0211 other engineering and technologies 021108 energy 02 engineering and technology 0101 mathematics 01 natural sciences
Zdroj:	March 2021. 5:271-280
ISSN:	2616-0501 2616-051X
Popis:	Time overrun of completed road projects awarded by the Niger Delta Development Commission (NDDC) in the Niger Delta Region of Nigeria from its inception in 2000 up to 2015 was studied. Out of 3315 roads awarded, only 1081 roads representing 31.65 percent were completed within the review period. The qualitative study was carried out on randomly selected completed 162 road projects for analysis, and a conceptual model of time series was developed. In developing the regression model, both dependent and independent variables were subjected to normality tests assessed by skewness coefficient, kurtosis value, Jarque-Bera test, residual probability plot, heteroscedasticity test and the variance inflation factor. Also, with knowledge of total road projects awarded by the Commission, it is now possible to predict proportions of roads experiencing schedule overruns.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e4d89663df041fb180c6275bb35ceb69 https://doi.org/10.36263/nijest.2021.01.0269 Zobrazit plný text záznamu