This also was a period in which there was early recognition of the need for a federal role in urban mass transportation.

This also was a period in which there was early recognition of the need for a federal role in urban mass transportation.

• この時期はまた、都市公共交通において連邦政府の役割（関与）の必要性が、早くから認知されていた。

This role, however, was to remain limited for a number of years to come.

This role, however, was to remain limited for a number of years to come.

②しかしながら、この役割は、その後数年間にわたり（その後しばらくの間）、限定されたままであった。