BACKGROUND Perceptions of the environment appear to be associated with walking and cycling. We investigated the reasons for walking and cycling to or from work despite reporting an unsupportive route environment in a sample of commuters. METHODS This mixed-method analysis used data collected as part of the Commuting and Health in Cambridge study. 1164 participants completed questionnaires whi...

BACKGROUND Despite strong support for predictive validity of the theory of planned behavior (TPB) substantial variance in both intention and behavior is unaccounted for by the model's predictors. The present study tested the extent to which habit strength augments the predictive validity of the TPB in relation to a currently under-researched behavior that has important health implications, name...

Background: Giving the rising trend in childhood obesity in many countries including Switzerland, strategies to increase physical activity such as promoting active school travel are important. Yet, little is known about time trends of active commuting in Swiss schoolchildren and factors associated with changes in walking and biking to school. Methods: Between 1994 and 2005, information about mo...

BACKGROUND Giving the rising trend in childhood obesity in many countries including Switzerland, strategies to increase physical activity such as promoting active school travel are important. Yet, little is known about time trends of active commuting in Swiss schoolchildren and factors associated with changes in walking and biking to school. METHODS Between 1994 and 2005, information about mo...

Evidence from the four preceding POLYNET empirical studies (Actions 1.1-2.2) reveals that South East England is unique amongst NorthWest Europe's mega-city-regions. It is by far the largest MCR, extending beyond the area mapped in Action 1.1, west into the South West and north into the South Midlands regions. Most significantly, commuting and business network analyses reveal prominent functiona...

Navigation problem in lattices with long-range connections has been widely studied to understand the design principles for optimal transport networks; however, the travel cost of long-range connections was not considered in previous models. We define long-range connection in a road network as the shortest path between a pair of nodes through highways and empirically analyze the travel cost prop...

1 GPS-based travel survey is an emerging data collection method in transportation planning. 2 Its application in trip mode detection has been explored in many existing studies. 3 However, most existing research on GPS data based trip mode detection methods are 4 developed and tested with data collected from European and American countries. Their 5 methods cannot be easily adapted to Asian count...

BACKGROUND Active commuting may make an important contribution to population health. Accurate measures of these behaviours are required, but it is unknown how self-reported estimates compare to those derived from objective measures. We sought to develop methods for objectively deriving time spent in specific travel behaviours from a combination of locational and activity data, and to assess the...

BACKGROUND Socio-ecological models of behaviour suggest that dietary behaviours are potentially shaped by exposure to the food environment ('foodscape'). Research on associations between the foodscape and diet and health has largely focussed on foodscapes around the home, despite recognition that non-home environments are likely to be important in a more complete assessment of foodscape exposur...