Bus stop design and traffic safety: An explorative analysis.

Area of Science:

• Transportation Engineering
• Traffic Safety Research
• Urban Planning

Background:

• Prioritizing public transport often involves implementing curbside bus stops over layby designs.
• Uncertainty exists regarding the impact of curbside versus layby bus stop designs on traffic collision risks.

Purpose of the Study:

• To investigate the relationship between bus stop design (curbside vs. layby) and traffic collision risks.
• To explore whether curbside stops are associated with higher collision rates compared to layby stops.

Main Methods:

• An exploratory analysis merging national data on bus stops, road properties, traffic collisions, and built-up areas.
• Geographical location was used to link diverse datasets for analysis.

Main Results:

• Curbside bus stops in built-up areas exhibited higher rates of personal injury traffic collisions within 60m (0.32 per ten million vehicles) compared to layby stops (0.22 per ten million vehicles).
• Higher collision risks near curbside stops were associated with their proximity to junctions and side roads, not inherent design flaws.
• Data did not support hypotheses linking specific collision types (head-on, rear-end, side-on) to particular bus stop designs.

Conclusions:

• The location of curbside bus stops near intersections, rather than their design, appears to be a primary factor in increased collision risks.
• Limitations include lack of control over specific design features, statistical power, and data integration methods.
• Future research should incorporate detailed collision reports, direct observations, and before-after studies to refine understanding.