relais routier
/rɪˌleɪ ˈruːtɪeɪ/(also relais routiers)
noun
Any of an association of roadside restaurants originally designed for lorry drivers and now well known for providing high-quality food at reasonable prices.
Origin
1960s; earliest use found in The Times. From French relais routier from relais + routier (adjective) of or relating to roads; the sense development in French was probably influenced by association with the related routier (noun) long-distance lorry driver.