Short answers, pulled from the story.
The Vienna Convention defines a motorway as a road specially designed for motor traffic that does not serve properties bordering it. This standard requires separate carriageways for opposing directions separated by a dividing strip or other means. The convention mandates that such roads do not cross at level with any road, railway, tramway track, or footpath.
Italy opened its first controlled-access highway in 1924 connecting Milan to Varese. This route was known as the Autostrada dei Laghi or Lakes Motorway. It contained only one lane in each direction and featured no interchanges.
France recorded 7.12 fatalities per billion vehicle kilometers on all roads compared to 1.79 on motorways. Speed is considered one of the main contributory factors to collisions across Europe. Some countries achieved death reduction through better monitoring of speed using safety cameras or penalty points.
Cities like Seoul, Portland, New York City, Boston, San Francisco, Seattle, and Milwaukee implemented freeway removal policies. These cities demolished freeways and reclaimed land as boulevards or parks such as Cheonggyecheon in Seoul. Underground urban freeways using tunneling technologies have been employed in Madrid, Prague, Sydney, Brisbane, and Melbourne.
Germany assigns odd-numbered federal motorways generally north-south directions while even-numbered ones follow east-west paths. Italy marks all motorways with letter A followed by a number regardless of management concessionaire companies. Belgium prefixes some dual carriageways with A but references E-numbers when applicable for international routes.