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Grade separation

In civil engineering (and more specifically, highway or railway engineering), grade separation is a method of aligning a junction of two or more surface transport axes at different heights (grades) so that they will not disrupt the traffic flow on other transit routes when they cross each other. The composition of such transport axes does not have to be…

Technology, Railways & Effects

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Overview

Effects

Roads

Railways

Footbridges and subways

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Map overview Semantic statistics

Grade separation

Nodes110
Edges109
Triples73
Avg. degree1.98
Density0.018182
Components1

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Grade separation

Top relations

related to High-speed railways (200 km/h or 120 mph+) · 23
Grade separation → Amtrak, Cleveland, Conrail, CSX Transportation, France, Germany, In, Italy, Japan, Keystone Corridor, New Jersey Transit, Nickel Plate Road, Norfolk Southern, Northeast Corridor, Ohio, On, Pennsylvania Railroad, Philadelphia Zoo, SEPTA, Taiwan
related to overview · 12
Grade separation → Australia, British, For, Grade, Instead, Interstate Highway, Ireland, New Zealand, The, Typically, United Kingdom, United States
related to With roads and footpaths · 10
Grade separation → Efforts, Great Central Railway, In, Level Crossing Removal Project, Melbourne, Network Rail, The, The London Extension, This, UK
related to Disadvantages · 5
Grade separation → For, In, Rail-over-rail, Their, With
related to Advantages · 2
Grade separation → In, Roads
is a · 1
Grade separation → method of aligning a junction of two or more surface transport axes at different heights

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Important terminology

junction traffic grade roads grade-separated separation road railway weaving crossings junctions use lines two rail pedestrian one cross level flying

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Grade separationis amethod of aligning a junction of two or more surface transport axes at different heights0.90text
tunnelsinstance ofdue to the need for large physical structures0.80text
rampsinstance ofdue to the need for large physical structures0.80text
and bridgesinstance ofdue to the need for large physical structures0.80text
traffic waves.Howeverinstance ofas a result of well documented phenomena0.80text
highwayinstance ofas a result of well documented phenomena0.80text
mixedinstance ofas a result of well documented phenomena0.80text
even railroad-only grade separation projectsinstance ofas a result of well documented phenomena0.80text
especially when 'retrofitting' an active transit corridor built without traffic conflict mitigations to save on construction costsinstance ofas a result of well documented phenomena0.80text
nonetheless usually necessitates considerable engineering expertiseinstance ofas a result of well documented phenomena0.80text
effortinstance ofas a result of well documented phenomena0.80text
and can be very expensiveinstance ofas a result of well documented phenomena0.80text

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