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Choose two categories from the same family. The same properties, equal visual weight, sources next to the claims they support.
STRUCTURED COMPARISON
Choose two categories from the same family. The same properties, equal visual weight, sources next to the claims they support.
Transport
Both works are observational: they show association, not causation, and the mode of travel was reported by the participant. The platform states the limit plainly: the sources cited measure mortality and morbidity, and the risk posed to other road users — but NOT the injury risk to the cyclist themselves per kilometre. No suitable source for that was found, and the platform will not substitute a study from another country.
In the cohorts the car falls within non-active commuting and therefore has no figure of its own. This is a limit of the works themselves, not a gap in the content: what was compared were ways of getting to work, and the reference chosen was non-active travel as a whole.
An analysis of English road fatality data counts the risk not to the traveller but to other road users, per vehicle-kilometre. Of six modes, the bicycle poses the lowest.
In the same analysis, cars and vans pose a higher per-kilometre risk to other road users than bicycles, and that risk is higher on rural roads. Buses and lorries pose the highest risk to others; motorcycles pose substantially more than cars.
In a cohort of 263,450 participants, cycle commuting is associated with lower all-cause mortality (0.59, interval 0.42-0.83), lower cancer incidence (0.55) and lower cancer mortality (0.60) compared with non-active commuting. A second cohort, built on census data with up to 25 years of follow-up, studies the same modes independently of the first.
Counted for this table only, not for the whole site.
The comparison rests on two independent cohorts and one analysis of road statistics, and it has a feature worth naming at once: in these works the car serves as the reference point, not as a measured side. Cycle commuting is associated with lower all-cause mortality relative to non-active travel, which includes both the car and public transport: a hazard ratio of 0.59. One feature usually left out of safety discussions has been measured separately — the risk posed to other road users per kilometre: the bicycle poses the lowest of six modes, cars pose more, and more still on rural roads. What these sources do not measure is the injury risk to the cyclist; no suitable work on it was found, and the row says so plainly.
FREQUENTLY EXPLORED
In both cohorts, commuting by car falls within non-active travel, which is the reference against which the quoted hazard ratios are calculated. These works give no separate figure for the car: it serves as the baseline, not as a measured side. The car itself was not studied in them as a source of risk or benefit.
Evidence reviewed: September 3, 2026
Sources are reviewed by the CONTRAST editorial team. External links open in a new tab.