MODELING OF ACCESS MODES CHOICE IN JUANDA INTERNATIONAL AIRPORT, SIDOARJO, EAST JAVA PROVINCE

The choice of access mode at an airport is influenced by the characteristics of its users, the characteristics of the transportation, and the characteristics of the available modes. To know the characteristics of the choice of access modes at an airport, modeling the choice of access modes becomes an important instrument. The design of an airport always follows the characteristics of the passengers it serves, so that the model for selecting the access mode at an airport is also specific. Therefore, the model of selecting airport access modes in airports all over the world varies greatly. This research attempts to model the mode choice at Juanda International Airport with a focus on the probability of choice which is influenced by passenger characteristics. The approach method used in this research is the analysis of passenger preference data. Preference data are data of airport user responses to variables that affect airport access transportation systems. Data were obtained from a primary survey by distributing questionnaires to airplane passengers randomly and involving 900 respondents in the waiting rooms of Terminal T1 and T2 at Juanda Airport. Data analysis was performed by building a mathematical model of airport access mode selection. The type of model used is a multinomial logit model with 6 (six) alternative modes, namely train, bus, travel, private vehicle, taxi, and motorcycle. Based on the survey, it is known that Juanda Airport serves 29 districts and 9 cities. This survey does not cover the transit passengers. However, only 5 (five) regions that met the aspects of statistical data sufficiency, namely Surabaya, Sidoarjo, Gresik, Jombang, and Malang. From the analysis of modes choice from the five origin regions, it can be seen that the greatest interest in the airport train plan with the route of Gubeng Station - Juanda Airport is passengers from Malang with a probability of average choice of 0.37. The logit model for the choice of trains for passengers from Malang is influenced the mode accessibility & service satisfaction factor, the socioeconomic family and the mode frequency factor. The biggest interest for the airport bus mode is passengers from Jombang with a probability of choosing an average of 0.34. The bus choice model formulation for passengers from Jombang is influenced by the purpose and distance of the trip. Of all origin regions studied, the highest interest in travel access to Juanda airport is using a private car. Based on the results of the analysis of all models it can be seen that the tendency of the probability of using the train/bus transportation mode is greater if the access distance to the airport is greater, but on the other hand the greater the distance of access the number of factors/variables on which the basis of selection is getting smaller. This shows that the biggest market for airport train/bus access modes is passengers whose origin area is far from the airport. This consideration can be accepted because the farther of trip is greater the probability of delays. Keywords: airport access mode, mode choice model, mode choice probability