Construction delays are a common phenomenon in civil engineering projects in Egypt including road construction projects. Therefore, it is essential to study and analyze causes of road construction delays. This paper studied a list of construction delay causes gathered from literature having different types of construction, different countries, different periods and different numbers of delay causes and delay groups. A questionnaire and personal interviews have formed the basis of this paper listing 293 delay causes. The questionnaire survey was distributed to 500 construction participants and 389 were received who represent consultants, contractors and site/design engineers excluding the owner representing the government in road projects as one party only. Relative Importance Index (RII) is calculated and according to the highest values the top twenty and the least twenty delay causes of construction projects in Egypt are determined. A case study is analyzed and compared to the most important delay causes in the paper. The test results reveal good correlation of causes and groups between contractors and site/design engineers and between consultants and site design engineers and a somewhat low correlation between contractors and consultants. So there are no root causes that can be taking for granted to be most or least effective delay causes. Proposed model for predicting actual road construction project duration was developed; a real case study tested the accuracy of proposed model. According to the analysis of case study, the most contributing causes and groups to delays were discussed, and some future recommendations were proposed in order to control and minimize delays in road construction projects. These findings can be helpful for project managers to mitigate the road construction delays in Egypt. In order to effectively overcome the road construction delays in developing countries, suggestions are made for fundamental and large‐scale reforms in procurement systems and stakeholders’ management. Also, this paper is useful for both researchers and road construction parties and allows detailed and repeatable analysis of the progress of a road construction project in order to facilitate and achieve a competitive level of time, cost and quality for effective road construction projects.

https://cyberleninka.org/article/n/1349520.pdf

Exploring delay causes of road construction projects in Egypt

Project management and its effects on project success: Cross-country and cross-industry comparisons

A fuzzy synthetic evaluation approach for risk assessment: a case of Singapore's green projects

There is great concern in Uganda about delays and cost overruns in public sector construction projects because such projects are implemented using taxpayers' money. At the national and international levels, there is considerable debate regarding how to minimise project delays and cost overruns. The main objective of this study was to investigate the causes of construction project delays and cost overruns in Uganda's public sector. Specifically, this study was conducted to identify the causes of delays and overruns and to rank them according to their frequency, severity and importance. The Civil Aviation Authority (CAA) was selected as a case study as a means of validating the results of the survey. Frequency index, severity index and importance index values were computed and all 20 factors involved were ranked. The five most important causes of delays in construction projects were found to be the following: changes to the scope of work, delayed payments, poor monitoring and control, the high cost of capital and political insecurity and instability. The relationship between the factors that cause delays and those that cause cost overruns was found to be moderate. Recommendations are made for improved project management, a change from the traditional contract type to the design-build type and improved cash flow on the part of the client to reduce payment delays. The results of this research should help construction practitioners, policy makers and researchers in the field of construction management.

/pdf/investigation-into-the-causes-of-delays-and-cost-overruns-in-1v3zpz61c1.pdf

Investigation into the Causes of Delays and Cost Overruns in Uganda's Public Sector Construction Projects

Once a construction projects fails in achieving effective cost performance, it will result to cost
overruns. These overruns are caused from several factors which are very important to uncover for improving
the cost performance. In Malaysia, not many research works have been carried out on studying cost
performance factors. Hence, this study was conducted to identify the significant factors causing cost overrun
in large construction projects in Malaysia. Questionnaire for the survey was developed based on 35 common
factors of cost overrun identified from literature work. These factors were grouped in 7 categories and validated
by interviewing five experienced personnel of construction industry. The feedback of from the survey resulted
in receiving 262 sets of completed valid responses against 400 questionnaires distributed amongst contractors,
consultants and clients involved in large construction projects. The data from the questionnaire was analyzed
statistically. Relative importance index method was used for hierarchal assessment of factors and found that
the top 3 most significant factors of cost overrun are fluctuation of prices of material, cash flow and financial
difficulties faced by contractors and poor site management and supervision. These factors belong to two
categories i.e., contractor's site management and financial management category, thus improvements in these
categories are paramount for controlling cost overrun in construction projects.

Significant Factors Causing Cost Overruns in Large Construction Projects in Malaysia

In-planned duration and cost at project closing are the two of criteria of successful project and successful project management. In Vietnam, regularly, construction projects have met delays and cost overruns. This research has employed a questionnaire survey to elicit the causes of this situation by interviewing 87 Vietnamese construction experts. Twenty one causes of delay and cost overruns appropriate with building and industrial construction project were inferred and ranked with respect to frequency, severity and importance indices. Spearman’s rank correlation tests showed that there are no differences in the viewpoints between three principal parties in the project. A comparison of causes of time and cost overruns was done with various selected construction industries in Asia and Africa. Factor analysis technique was applied to categorize the causes, which yielded 7 factors: Slowness and Lack of constraint; Incompetence; Design; Market and Estimate; Financial capability; Government; and Worker. These findings might encourage practitioners to focus on delay and cost overruns problem that might have existed in their present or future projects.

/pdf/delay-and-cost-overruns-in-vietnam-large-construction-2kl5iry1w3.pdf

Jun Yong Lee

Papers

Delay and cost overruns in Vietnam large construction projects: A comparison with other selected countries