This study aims to identify the variables that can influence project performance in road construction projects, as well as their current state, the degree to which they influence project performance in construction projects, and the methods used to improve them in connection to this impact. The method used in this study is a descriptive quantitative method combined with a qualitative approach. The combined method was used to obtain more comprehensive and holistic analysis results and this research is a survey research, namely taking samples from the population and using a questionnaire as a primary data collection tool and is a quantitative research using data. Quantitative data were obtained from primary data in the form of respondents' answers to the questions posed in the questionnaire in the form of ordinal data. The main indicator affecting cost performance is the increase in material prices. The variable that has the most indicators affecting cost performance is the contractor variable, followed by materials, labor, equipment, site characteristics, construction management, owner, and external variables. The variable that has no effect on cost performance is the consultant. The contractor is the key in determining the quality of construction work, so the management skills of a contractor are indispensable.