Decarbonising transport is essential for achieving net zero. Transport is the largest contributor to UK domestic greenhouse gas emissions – responsible for 27 per cent in 2019, even excluding emissions from international aviation and shipping.1 Simply electrifying private vehicle stock at existing levels of ownership and use will not be sufficient to achieve climate goals,2 and will fail to address the public health epidemics of road deaths and serious injuries, physical inactivity, and air pollution, all enabled by private car ownership.3
Transport decarbonisation, then, necessitates increasing levels of active travel, as well as increasing public transport use – also recognising that most public transport journeys will start and end with active travel. Within this paper, active travel is understood as walking, wheeling, and cycling, with wheeling including fully-powered mobility aids such as electric wheelchairs and mobility scooters – reflecting the infrastructural needs of such modes, as well as acknowledging disabled people's often non-normative forms of physical activity.4
Active travel targets have been established across the UK, recognising the necessity of increasing mode share. For example, 50 per cent of trips in England's towns and cities to be walked, wheels, or cycled by 2030,5 a mode share target of 45 per cent for public transport and active travel in Wales by 2040,6 and a reduction in car use by 20 per cent in Scotland by 2030.7
To increase levels of active travel, reallocating road space away from private vehicles and making space for and investing in safe, accessible, and dedicated walking, wheeling, and cycling infrastructure is essential. In a systematic review of a decade's worth of research on active travel interventions, Roaf et al demonstrate how active travel interventions with infrastructure change have the greatest positive impact upon levels of active travel, whilst social and behavioural interventions without infrastructure change have little impact.8 Safe and dedicated infrastructure is also important for extending the diversity of people travelling actively. For example, women9 and disabled people10 often have a strong preference for dedicated cycling infrastructure, and such infrastructure has been demonstrated to increase the number of women cycling.11
Access frictions are emerging as new infrastructure with an evidence base for positive impacts upon levels of active travel, for example dedicated and segregated cycle tracks and low traffic neighbourhoods,12 is being implemented.13 Such frictions occur when nuanced and individualised embodiments of disability mean that the access needs of some disabled people, ie the things one needs to be able to fully and meaningfully participate within a space or activity such as travel, are seemingly incompatible with the access needs of other disabled people. Access friction between disabled people has also been discussed as ‘conflicting’ or ‘compet
Transport can enable everyone, across the social gradient, to benefit from access to schools, colleges, and jobs. It is also critical to enable people to engage with essential services such as doctors, dentists, and hospitals, and to interact with friends and family. However, it is not equally available and can promote, or damage, health. This article explores four key areas where we believe better transport can play a key role in creating a fairer, healthier country.
The 2010 Marmot Review described how having access to transport enables access to work, education, social networks, and services that improve people's opportunities and overall community functioning.1 Conversely, not having good transport access increases inequalities in a range of the social determinants of health.2 Yet, in the Marmot review 10 years on,3 we noted the under-investment in a crucial part of our transport system: bus services. The quality of bus services has the greatest effect on the day-to-day travel experience of those without access to a car. In 2021–22, one in four (28 per cent) of the poorest fifth of households did not have access to a car, compared with just 6 per cent of the wealthiest fifth of households.4
In 2018, analyses of the National Travel Survey found that 19 per cent of unemployed people in England either turned down a job or did not apply for a job due to transport problems, compared with 6 per cent of people who were already in employment.5 This followed a sustained decrease in national funding for buses, with a 35 per cent drop in funding between 2008/09 and 2019/20; financial support for buses then increased over the pandemic, but has now fallen back.6 A report published this year notes that bus services outside London, in rural and urban areas, have now halved since 2008, with some areas having reductions of greater than 80 per cent.7 In addition, the cost of bus and coach fares has risen by 69 per cent since 2015, more than rail fares, and average wages, which have increased by 46 per cent.8 Noting the unaffordability of travel, in 2021 the government stepped in with a £2 limit on bus fares, which will rise to £3 in 2025.9
For those needing to travel outside of peak times, there has been a significant drop in the frequency and reliability of services. This particularly impacts shift workers without a car, for example those working in the NHS. It also impacts those without a car wanting to travel to socialise or access cultural services.10 Given that lack of quality, affordable transport is a barrier to employment, this will be exacerbating economic and health inequalities and holding back growth. Over half of the working-age population (57 per cent) live in areas with low public transport access to employment opportunities, ie within reach of 45 minutes travel time. Lack of transport does not only impact the ability to engage in work; 66 per cent (7.8 million) of elderly people cannot reach a hospital within 30 minutes by

