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Design speed

The design speed is a tool used to determine geometric features of a new road or street during road design. Contrary to the word's implication, the design speed of the road or street is not necessarily its vehicle speed limit or maximum safe speed; that can be higher or lower.

Geometric features, Overview & Speed limit variance from design speed

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Geometric features

Superelevation ratesCurvesSight distanceVertical curvesLanes
6 related topics

Overview

RoadStreetRoad designVehicleSpeed limit
14 related topics

Speed limit variance from design speed

SpeedMotor vehicleAdvisory speed
3 related topics

Evolution

Charles MarohnAASHTOUS
3 related topics

Topics to explore

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Overview

Geometric features

Speed limit variance from design speed

Evolution

Factors

Bibliography

  • ISBN ISBN (identifier)

Advanced semantic analysis

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Map overview Semantic statistics

Design speed

Nodes36
Edges35
Triples20
Avg. degree1.94
Density0.055556
Components1

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Design speed

Top relations

related to Evolution · 8
Design speed → AASHTO Green Book, In, It, Most US, Recently, Significant, The, This
related to Speed limit variance from design speed · 8
Design speed → As, Design, For, It, The, Therefore, Vehicular, While
related to Geometric features · 2
Design speed → Roads, The
is a · 1
Design speed → tool used to determine geometric features of a new road or street during road design
related to Factors · 1
Design speed → When

Important terminology Word statistics

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Important terminology

speed design road safe speeds street limit features vehicle used maximum higher geometric drivers highway safety roadway sight roads curve

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Design speedis atool used to determine geometric features of a new road or street during road design0.90text
Design speedrelated to EvolutionThe0.60section
Design speedrelated to EvolutionAASHTO Green Book0.60section
Design speedrelated to EvolutionMost US0.60section
Design speedrelated to EvolutionIn0.60section
Design speedrelated to EvolutionThis0.60section
Design speedrelated to EvolutionRecently0.60section
Design speedrelated to EvolutionIt0.60section
Design speedrelated to EvolutionSignificant0.60section
Design speedrelated to FactorsWhen0.60section
Design speedrelated to Geometric featuresThe0.60section
Design speedrelated to Geometric featuresRoads0.60section

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    Min side: 3
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