Noun
a crossing that uses an underpass or overpass
Source: WordNetOperations for a grade separation project at U.S. 35 and C.R. 9 (Keystone Furnace Road) continue, and U.S. 35 is reduced to one lane in each direction at Keystone Furnace and McCarty Lane where crews are removing the median crossover. Source: Internet
Another grade separation was completed in November 2010 at Howard Avenue and the CP Rail line. Source: Internet
Since the trail follows a river, most street crossings use platforms under existing street bridges to provide an uncommon amount of grade separation, to the benefit of both trail users and automobile traffic. Source: Internet
The most important safety measures to prevent accidents are strict operating rules, e.g. railway signalling and gates or grade separation at crossings. Source: Internet
Visiting the site on Tuesday 21 November, the Shadow Minister for Roads and Infrastructure David Hodgett revealed that a grade separation was the likely solution to counteract the local volume of traffic. Source: Internet