The research led to the identification of a set of Key Performance Indicators (KPIs) for the road network that would help motorists understand whether conditions on the road were improving, or not; and demonstrated that most motorists inherently support a number of demand measures to reduce traffic congestion. The research provided the client with the evidence needed to lobby for more effective traffic congestion measures.
The research used a combination of deliberative research workshops and in-depth interviews with motorists from across the UK to explore their perceptions and priorities, supplemented by the use of travel diaries to understand the types of information motorists require about the road network that enables them to make informed travel decisions (especially in relation to avoiding traffic congestion). This research helped shape a subsequent quantitative survey involving a Stated Preference (SP) survey with a nationally-representative sample of motorists to obtain a better understanding of motorists' perceptions and their support, or opposition, to different traffic intervention measures. The analysis included modelling of the relationships between motorists’ inherent attitudes to each demand measure (eg ramp metering, tolled motorway relief roads), perceived effectiveness (in reducing traffic congestion) and socio-demographics and lifestyle aspects.
The study was undertaken between December 2009 and November 2010.