A6 highway (Lithuania)
The speed limit for most of the length of A6 is default 90 km/h (outside city limits). The section from Kaunas to Jonava has been upgraded to a dual carriageway with at-grade junctions and traffic-lights. The remaining sections are roads with one lane in each direction, leading through towns like Ukmergė, Utena and Zarasai.
Autostrade of Italy
The first speed limit, to , was enacted in November 1973 as a result of the 1973 oil crisis. In October 1977, a graduated system was introduced: cars of above had a speed limit, cars of 900-1299 cc had a limit of , those of 600-899 cc could drive at , and those of or less had a maximum speed of . In July 1988 a blanket speed limit of was imposed on all cars above 600 cc (the lower limit was kept for smaller cars) by the short lived PSDI government. In September 1989 this was increased to for cars above and for smaller ones.Until 1990, the designation A1 referred only to the Milan-Rome section of the current A1; the Rome-Naples section was known as A2. After a link was built bypassing Rome, the designation A2 was withdrawn and now the A1 designation refers to the whole route. The residual connections to the "Grande Raccordo Anulare" (Great Ring Road, around Rome) were designated as "raccordi" (see later).
Until 1973, the designation A17 referred to the current A16, and the section Canosa-Bari of the current A14.