Signalized intersections often cause congestion. Factors contributing to congestion include the high proportion of intersections operating beyond their capacity and malfunctioning traffic signals. This study aims to develop a sustainable model for signalized intersections in border areas. Primary data were collected by calculating the number of motorized vehicles at each intersection and obtaining expert opinions through focus group discussions (FGDs) to determine the relevant attributes and dimensions. The results from the five signalized intersections show that the Salabenda intersection achieved the highest technological dimension score (72.33%), indicating that technological sustainability is well developed and measurable. The Semplak intersection also demonstrated a strong technological dimension (62.36%), reflecting the implementation of measurable traffic management technology. The Bubulak intersection obtained a social dimension score of 57.71%, indicating that social sustainability, including accessibility and public service aspects, is relatively well implemented. The POMAD intersection achieved an ecological dimension score of 59.44%, showing that environmental considerations are becoming more prominent in traffic management. In the institutional dimension, the Bubulak intersection scored 50.00%, indicating that institutional coordination and management are moderately measurable. Meanwhile, the Ciawi intersection obtained the lowest score in the economic dimension (42.97%), suggesting that economic sustainability still requires improvement. The new simulation model produced four scenarios: sustaining intersection functions through technology, collaborative management of transportation infrastructure for both road and rail systems, and sustainable accessibility control based on the characteristics of border areas. Strengthening the institutional dimension, including interregional cooperation, requires more effective policy and decision-making processes. The novelty of this research lies in the system model node (SYSMODE) concept. This single-point system concept provides benefits across all five sustainability dimensions. The implementation of this five-dimensional model at each intersection must be carried out properly and in a controlled manner. The proposed model is expected to improve the performance of signalized intersections for both road and rail transportation, supported by complete and measurable infrastructure facilities in border areas.