Key evidence from peer-reviewed literature is being used to strengthen the case for current transport policies and practice.

All of the summaries found below are published on a single page in order to better disseminate academic research to practitioners for implementation within planning and policy.

Dr Adrian Davis has been key to providing evidence to influence  the work of many projects in Bristol including Cycling City and the Local Sustainable Transport Fund.

Please note that as of August 2019 Dr Adrian Davis is no longer producing Essential Evidence summaries for Bristol City Council, so no new ones will  be uploaded to Travelwest. Dr Adrian continues to produce these for the Transport Research Institute at Edinburgh Napier University, where you can access his latest Essential Evidence.

Loading...

No 187: Examining the politics of transport planning

No 187: Examining the politics of transport planning

Dr Adrian Davis Top line: Politics is a key determinant of transport policy. Attempts at evidence-based transport policy are often thwarted by ideological stances at odds with environmental sustainability, and focused on road building rather than on access for all. The development of transport policy in Australian cities in recent decades has been combined with … Continued

No 186 Active Travel & Physical Activity. Evidence Review.

No 186 Active Travel & Physical Activity. Evidence Review.

Dr Adrian Davis Top line: The evidence for positive impacts in increasing physical activity is greatest for town and city-wide interventions. All studies addressing whole town or city-wide interventions showed increased levels of cycling and walking compared to controls. Sport England (SE) supports a broad range of physical activity, including walking and cycling for travel. … Continued

No 185: The effectiveness of a 20mph speed limit intervention on vehicle speeds in Bristol

No 185: The effectiveness of a 20mph speed limit intervention on vehicle speeds in Bristol

Dr Adrian Davis Top line: The findings indicated that the sign-only 20mph intervention was successful in lowering vehicle speeds. Policy makers are encouraged to implement a careful monitoring of the effects of 20mph speed limit interventions on vehicle speeds in order to enable a meaningful evaluation of potential public health benefits. Twenty mph (32.2km/h) speed … Continued

No. 184 How methods and levels of policing affect road casualty rates

No. 184 How methods and levels of policing affect road casualty rates

Dr Adrian Davis Top line: Increasing levels of traffic policing reduces the number of road accidents and traffic violations. Theory suggests that the relationship between levels of policing and accidents/casualty rates is non-linear. A study sought to establishment the relationships.[1] At zero enforcement level, accidents and casualties are expected to be at their highest levels. Increases … Continued

No. 183 Assessing the potential for carbon emissions savings from replacing short car trips with walking and cycling

No. 183 Assessing the potential for carbon emissions savings from replacing short car trips with walking and cycling

Dr Adrian Davis Top line: In an urban area, 41% of short car trips (up to 69% when including escort, large-retail shopping and ‘as passenger’ car trips) could realistically be shifted to active travel. There is a growing recognition of the role that walking and cycling can make in reducing greenhouse gas (GHG) emissions by … Continued

No 182 Sustainable Travel Towns: An evaluation of the longer term impacts

No 182 Sustainable Travel Towns: An evaluation of the longer term impacts

Dr Adrian Davis Top line: City-wide sustainable travel interventions in three English towns led to increases in cycling and walking, sustained five year post project, while car use declined. Interventions addressing a large number of people who are at a relatively small risk of injury and illness may be more effective than interventions addressing small … Continued

Next