Abstract—Contingency cost is the money provided as the reserve cost to face the uncertainty situation relating to the construction project. The contractor need to allocate some amount of the budget for contingency cost into the offering budget proposed to anticipate the uncertainty situation that could be occurred. The problem raised is what the uncertainty factors affecting contractor contingency cost. From the results of this study are obtained five of the most factors causing uncertainty which affecting contractor contingency cost in the building construction project. These five factors are divided into two dominant categories causing uncertainty which affecting contractor contingency cost in the building construction project based on the three respondent groups which are team financial condition, security and safety in the project location, and team management capability involved. 
 

Index Terms—contingency cost, uncertainty, contractor, importance index

Cite: Hafnidar A. Rani, "The Analysis of Importance Index to the Dominant Category Causing Contractor Contingency Cost in Aceh Province," International Journal of Structural and Civil Engineering Research, Vol. 6, No. 3, pp. 228-232, August 2017. doi: 10.18178/ijscer.6.3.228-232