SANDAG's study of traffic crossing the U.S./Mexico international border resulted in the development of the Cross Border Travel Forecasting Model. The Model assists in transportation infrastructure planning on both sides of the border as officials in the Southern California/Baja California region work together to develop integrated highways, border crossings, trucking, and railroad systems.
The purpose of the study was to develop a systemwide approach for evaluating and forecasting vehicular travel across the border, with major consideration given to the possible interaction among existing and proposed ports of entry. The model development process included representatives of transportation planning agencies of Baja California, Mexico, and the San Diego region.
The Cross-Border Travel Forecasting Model includes population and employment growth forecasts for U.S./Mexico border cities, and transportation demand forecasts. | 
