Pedestrians' Perceptions of Motorized Traffic in Suburban-Rural Areas of a Metropolitan Region: Exploring Measurement Perspectives.

Noise was the primary negative predictor variable in relation to hindering-stimulating walking in suburban-rural route environments.

• The study involved pedestrians (n = 233) rating their route environment in suburban and rural areas of Greater Stockholm, Sweden.
• Regression analyses identified noise as the primary negative predictor for the hinders-stimulates walking outcome.
• The Active Commuting Route Environment Scale (ACRES) was used to collect pedestrian ratings.
• Motorized traffic variables assessed included flow and speeds of motor vehicles, noise, and exhaust fumes.

None of the individual motorized traffic variables had a significant direct relation to the unsafe-safe traffic outcome.

• The outcome variable unsafe-safe traffic for reasons of traffic showed no significant direct relationships with any of the predictor variables in the regression analyses.
• This was in contrast to the hinders-stimulates walking outcome, where noise was a significant predictor.
• The study used correlation, multiple regression, and mediation analyses to study the relationships.

Vehicle speed had an indirect effect on unsafe-safe traffic perception via noise as a mediator.

• Mediation analyses revealed that the path from vehicle speed to unsafe-safe traffic was mediated by noise.
• This indicates that vehicle speed does not directly affect perceived traffic safety but does so through its effect on noise.
• The mediation analyses were one of three sets of mediation findings reported in the results.

Both vehicle speed and vehicle flow had indirect effects on hinders-stimulates walking via noise as a mediator.

• Mediation analyses showed that noise mediated the relationship between vehicle speed and the hinders-stimulates walking outcome.
• Noise also mediated the relationship between vehicle flow and the hinders-stimulates walking outcome.
• These indirect pathways were identified using mediation analysis as part of the analytical strategy.

Vehicle speed had an indirect effect on both noise and exhaust fumes via vehicle flow as a mediator.

• Mediation analyses showed that vehicle speed affected noise indirectly through vehicle flow.
• Vehicle speed also affected exhaust fumes indirectly through vehicle flow.
• This suggests a cascading pathway where speed influences flow, which in turn influences the noise and exhaust fume environment experienced by pedestrians.

The study hypothesized and examined whether perceptions of motorized traffic by pedestrians are context-specific between inner urban and suburban-rural environments.

• The same methods used in a prior study of an inner urban area of Greater Stockholm were applied to enable comparison.
• The hypothesis stated that perceptions 'to some extent, may be context-specific' between inner urban and suburban-rural settings.
• The suburban-rural sample consisted of n = 233 pedestrians rating their route environment using ACRES.

Reducing vehicle speed is proposed as a strategy to lower noise levels and enhance the walking experience in suburban-rural environments.

• The authors concluded that 'by reducing vehicle speed, noise levels will be lowered, and the walking experience is likely to be enhanced, which can influence the amount of walking.'
• This recommendation is supported by the mediation findings showing vehicle speed's indirect effects via noise on both walking stimulation and perceived traffic safety.
• The conclusions also reference exploration of existing and potential future research strategies related to these findings.