grade separation
Noun
Meaning
a crossing that uses an underpass or overpass
Source: WordNetHypernyms
Examples
Operations 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.
Another grade separation was completed in November 2010 at Howard Avenue and the CP Rail line.
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.
The most important safety measures to prevent accidents are strict operating rules, e.g. railway signalling and gates or grade separation at crossings.
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.