UNDERSTANDING TRAVEL BEHAVIOR: A DEEP NEURAL NETWORK AND SHAP APPROACH TO MODE CHOICE DETERMINANTS

Understanding individual travel behavior is crucial for developing effective travel demand management strategies and informed transportation policies. This study investigates the factors influencing individuals' mode choices by analyzing data from a comprehensive travel survey. We employ a deep neural network model to explore the relationships between survey variables and respondents' transportation mode preferences, focusing on both observable and latent factors. The SHAP method is applied to interpret the model's outputs, providing global and local explanations that offer detailed insights into the contribution of each variable to mode choice decisions. By identifying the key determinants of mode selection and uncovering the complex interactions between these factors, this research provides valuable insights for designing targeted policies that can better address transportation needs and influence sustainable travel behavior.