Delay in work progress

Time extension requests

Poor planning and scheduling

Lack of resources and staff

Quality of work accomplished

Lack of control over subcontractor

Incompetence of the contractor

Financial failure of the contractor

Changes of scope throughout the project

Delay of payments by the owner

Request of acceleration to speed up the tasks

The unrealistic and unmeasurable expectation of the owner

Long line of authority levels in owner’s organization

Irrational decisions

Financial failure

Change in project scope

Unforeseen changes

Site conditions

Complexity of project

Change of project location

Delay in utility approvals and connections

Delay due to municipality, heritage, and other rules and regulations

Delay in removal of encroachments

Delay in land acquisition

Design errors in the contract drawings

Incomplete contract drawings

The quality of design

Quality of supervision

Lack of resources and staff

Lack of communication

Controversial culture

Lack of team spirit

Unexpected change in material price

Shortage of materials

Stakeholders (beneficiaries, local community, authorities) interference

Economic and legal factors

Changes in government regulations and laws

Unforeseen external events

Unexpected changes in exchange, interest and inflation rate

Weather condition