one in the other, with a narrow fence in between. Switzerland In Switzerland Autostrasse (German, auto road), semi-autoroute, or semiautostrade (French and Italian for semi-freeway) is a highway that is only allowed to high-speed traffic with no crossings, but it is not the highest class road, the motorways (Autobahn/autoroute/autostrada). The speed limit on these roads in Switzerland is . Most of the Autostrasse / semi-autoroutes / semiautostrade have no central barrier separating the lanes in different directions. United Kingdom In the United Kingdom, the second tier of high speed roads below motorways are typically dual carriageways (although the term "dual carriageway" can refer to roads that are not limited-access, so long as traffic in opposite directions is physically separated). Many roads such as the A1, the A14, the A19 and the A42 are built to a high quality, in many places they are only intersected by grade-separated junctions, have full barriers at both the road side and the central reservations and in some cases three or more lanes of traffic, however they are not subjected to motorway restrictions as they are typically built to a lower standard, or have existing rights of way for non motorised vehicles. They may lack some features that a motorway would have, such as hard shoulders, and may have tighter bends and steeper gradients than would be allowed on a motorway or have established|rights of way that cannot be removed. The standard motorway speed limit for cars of also applies to many dual carriageways. In March 2015, it was announced that a new standard would be developed to formally designate certain high-quality routes in England as Expressways. This new standard would have the same motorway regulations as traditional motorways, however would lack a hard shoulder and use traffic management systems like those on smart motorways. An "expressway" is limited to 3 through lanes, they are to be built largely to the same standards as a smart motorway, although some non-standard existing alignments are allowed to remain if they are just short of being standard. Some roads have "expressway" in their name, this has no reflection on the purpose or standard of the road. For example, the Aston Expressway or the North Wales Expressway North America Canada In Ontario, expressway is synonymous with freeway and is used to mean limited-access divided-highways with no at-grade intersections. An example of this is the Gardiner Expressway through western and