Intervention:
Two studies (one moderate and one poor quality) evaluated enhancements to public transport rail routes. One moderate quality study examined the effect of a new rail line and one poor quality study looked at adding a new rail stop to an existing route.
Evidence quality:
Both the results and quality of the included studies were inconsistent. One study found no significant effect of the addition of a new rail line on active travel outcomes, and the other found a significant increase in active travel outcomes from adding a new rail stop.
Generalisability:
Both studies were conducted in the USA so further consideration should be given to whether they would be generalisable to Wales.
If proceeding with this intervention:
It is suggested that further robust research and thorough evaluation of impact is needed.