Evaluation of the 20mph/30kph speed limit policies in Edinburgh and Belfast: Barriers and facilitators to the implementation of 20mph speed limit schemes: A qualitative exploration
ISPAH ePoster Library. Hunter R. Oct 15, 2018; 225181
Dr. Ruth Hunter
Dr. Ruth Hunter
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Abstract IntroductionProcess evaluations are important in assessing the fidelity and quality of the implementation of an intervention. They also identify contextual factors associated with variation in outcomes. This presentation aims to understand the barriers and facilitators to the recent implementation of twenty mile per hour (30kmh) speed limits in Edinburgh and Belfast.MethodsSeventeen semi-structured interviews were conducted with key stakeholders based on their involvement within four areas of implementation of the schemes in Edinburgh and Belfast: legislation; introduction of signage; awareness-raising and education; and enforcement activities. These included representatives from the local authority, central government, and relevant enforcement agencies.Purposeful and snowball sampling methods were used. Interviews investigated: what implementation consisted of; barriers/facilitators to implementation; contextual factors influencing implementation; and differences between implementation phases (Edinburgh only). Data were managed in NVivo 11, and key themes were identified using thematic analysis. Results Ensuring effective collaborative working between involved parties (i.e. the local authorities, enforcement agency, and schools) was described as facilitating implementation. Additionally, the geographical street layout of Edinburgh was viewed as lending itself to lower traffic speeds. One barrier to implementation identified in Edinburgh related to the lengthy statutory processes associated with introducing a scheme of such scale. Another barrier identified in both sites related to resources available for enforcement.ConclusionsAuthorities should note the substantial processes required before 20mph policies can be implemented and consider the importance of ‘joined-up working’ for effective implementation. External funding details This research was funded by a grant from NIHR grant number 15/82/12.
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