eritasoliittymissä
Eritasoliittymissä is the Finnish term for grade-separated interchanges, intersections where roads cross at different elevations rather than on the same level. In these junctions, one road typically passes over or under another, and traffic movements are provided by ramps rather than direct at-grade crossing. This arrangement allows higher speeds and greater capacity by eliminating crossing conflicts and stop signals at the intersection.
Grade-separated interchanges are common where highways meet other roads or where heavy traffic volumes require efficient
Typical configurations include diamond interchanges, cloverleaf and partial cloverleaf layouts, trumpet interchanges, stack interchanges, and turbine
Disadvantages can include higher construction costs, greater land use, and potential weaving or weaving-related safety issues