Methodology for assessing the cost effectiveness of Sustainable Urban Mobility Plans (SUMPs). The case of the city of Burgos

CO2 savings are always the primary target of a SUMP. Most assessments highlight changes in behaviour or public perception, but contain no in-depth analysis of cost-effectiveness. This paper aims to calculate a cost analysis for each tonnes of CO2 saved. This methodology is used in other fields such as lighting and energy, but not in transport due to its complexity. However, effectiveness ratios can be calculated with the available data on modal shift and investments in the SUMP, taking into account the costs as a whole. Other methodologies to determine external cost savings are included in the proposed methodology to achieve a more accurate ratio and consider more external factors.