The more and more efficiently the community in owning and determining vehicle choices has resulted in increasingly increasing the trend of private vehicle use as the primary transportation mode replacing public transportation. Planned Behavior Theory is expected to accurately predict people's intentions and behavior in using private vehicles. The variables used are the independent variable Attitude Toward, Subjective Norm and Perceived Behavioral Control, then Intention Behavior as the intervening and Behavior dependent variable. The research population is the community of private motorists using cars and motorbikes in the city of Makassar. The number of samples used was 210 respondents. The sampling used is Purposive Random Sampling. Primary data and information through an open questionnaire. Analysis of research data with the Structural Equation Model with IBM AMOS Software. The results obtained show that attitude toward intention to behavior means that attitude variables compared to Subjective Norm and Perceived Behavioral Control variables predominantly affect Intention and Behavior. The Attitude Toward of vehicle users who are influenced by Behavior belief will ensure that the vehicles they use can make social values increase, will be more valued and respected. Vehicles are not only a means of transportation but also a symbol of a person's establishment.

Private vehicles are already a major requirement to carry out daily activities. The extent to which the influence of beliefs and motivations on subjective norm in meeting transportation needs in Makassar. Questionnaires were used to obtain primary data in the study, the survey contained questions related to the personal aspects of subjective norms that influenced the beliefs and motivations of respondents who chose to use private vehicles whether cars or motorcycles. Then, the sample used amounted to 200 to be distributed using a random proportional random sampling method adjusted at the level of education, age and monthly income. The analysis used is multiple regression descriptions, it used with SPSS Program. The result is that there is significant influence between normative belief to attitude with a coefficient value of 0.631 and there is the impact of motivation on the position with a ratio value equal to 0.648. Of the two independent variables indicate the influence of a large enough person in choosing a private vehicle. The greater power comes from within the family of both parents, wife, husband and child. The other influence is the social status that forces a person to own a private vehicle.

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This study aims to provide an overview of the most dominant variable affecting individuals in the use of private transportation (cars). The population in this study was the users of private car as many as (N = 200) respondents scattered around Makassar. The independent variables consisted of attitude (X 1 ), subjective norms (X 2 ) and perceived behavioral control (X 3 ), while behavior (Y 1 ) as the dependent variable. Moreover, the sampling technique used in this study was purposive random sampling and the data were analyzed by using descriptive analysis and multiple linear regression. The data analysis was processed by using SPSS 22. The results showed that the attitude variable (X 1 ) is the most dominant variable and has an influence towards behavior variable compared to other independent variables. Private cars are still seen as a symbol of success and a reliability of an individual. It means that it is also considered to increase the prestige or social status of the people despite its transportation function which is safer and more convenient.