At the national level, Spain has committed to reaching net zero emissions by 2050, and to reducing greenhouse gas (GHG) emissions by 55% in 2030 compared to 2005. Catalonia has committed to achieve net zero by 2050, and to reducing GHG emissions by 51% in 2030 compared to 2005. A regional transport-specific emission reduction target of at least 42.9% by 2030 compared to 2005 is currently being formalised.
Being the highest emitting sector in the region (32% of total GHG emissions in 2022), reducing transport emissions will be fundamental to achieving GHG emission reduction goals. Emissions from the sector increased by 19% between 1990 and 2019 and projections estimate a 39% increase of total passenger mobility by 2050, compared to 2017.
Evidence suggests that territories fostering walking, cycling and shared transport for the bulk of the trips perform better in terms of well-being and sustainability than car-centric territories. Catalonia has been a pioneer in identifying the need to transition to a sustainable transport system. Its Mobility Law was approved as long ago as 2003, and introduced a paradigm shift in the region’s mobility model from one based on private vehicles, to one that allows accessibility via the modes of transport with the least environmental and social cost. However, triggering behavioural change towards sustainable modes (modal shifts, in transport jargon), and improving accessibility to reduce the need for mobility, has been challenging in practice.
Guided by the 3 steps of the OECD Systems Innovation for Net Zero process, this report takes a systems approach to identify processes and policy packages able to trigger behavioural change in favour of sustainable modes to reduce emissions while improving well-being in the land passenger transport sector in the region. The term behavioural change is intrinsically linked to the insight from complexity science that individual preferences – and the resulting patterns of behaviour observed over time – are largely determined by the structure of the system in which they are embedded.
The analysis and recommendations in this report are based on inputs from local and regional stakeholders, desk reviews of selected plans and strategies, field visits to territories with different characteristics, and international literature. The report’s insights aim to inform on-going processes in the region, which can provide concrete opportunities to accelerate the transition towards net-zero passenger transport systems and achieve the vision in the 2003 law.