This study identified 10 most important causes of delay from a
list of 28 different causes and 6 different effects of delay. Ten most important causes were: (1) contractor’s improper planning, (2) contractor’s
poor site management, (3) inadequate contractor experience, (4) inadequate client’s finance and payments for completed work,
(5) problems with subcontractors, (6) shortage in material, (7) labor supply, (8) equipment availability and failure, (9) lack of communication
between parties, and (10) mistakes during the construction stage.