Predict future travel
Model validation involves testing the model’s capability to predict current travel demand so that it can be used effectively to predict future travel demand. Freight shipping travel models need to be able to replicate observed conditions within a reasonable range before they can be used to produce future year forecasts. As metropolitan areas continue to refine and improve their travel demand forecasting processes, the credibility of the process with decision makers will depend largely on the ability of analysts to properly validate the procedures and models used including discount freight shipping. The travel demand models have become more complex, resulting in complex procedures needed to validate them. Often there are tradeoffs between increasing confidence in the level of accuracy of the models and the cost of data collection and effort required to validate them. Tests used to evaluate the reliability of models can range from a simple assessment of the reasonableness of model outputs to sophisticated statistical techniques.