Home Tools and Techniques Tools and Techniques The tools and techniques category of the Guidelines provides detailed guidance about: T1 Travel Demand Modelling T2 Cost Benefit Analysis T3 Wider Economic Benefits T4 Computable General Equilibrium Models in Transport Appraisal T5 Distributional and Equity Effects T6 Benefit Management. T7 Risk & Uncertainty Assessment T8 Real Options Assessment T9 Urban Freight Demand Modelling