Kreuzungsfreier KnotenpunktVereinigte Staaten
Verkehrsregeln
Vereinigte Staaten
93. Kreuzungsfreier Knotenpunkt
Ein kreuzungsfreier Knotenpunkt ist eine Straßenverknüpfung, die den Wechsel zwischen zwei oder mehr bedeutenden Straßen ermöglicht, meist über Rampen, Brücken oder Tunnel, sodass sich kreuzende Verkehrsströme nicht auf derselben Ebene schneiden müssen. Solche Knotenpunkte finden sich häufig an Autobahnen, Schnellstraßen und anderen leistungsfähigen Straßen.
Fahrer sollten Wegweiser, Fahrstreifenpfeile und Routennummern frühzeitig beachten und sich vor der gewünschten Ausfahrt oder Verbindungsrampe auf dem richtigen Fahrstreifen einordnen. Geschwindigkeitsbegrenzungen, Einfädelregeln und Fahrstreifenführungen unterscheiden sich zwischen Ländern und einzelnen Knotenpunkten.
What is an interchange?
An interchange is a junction that allows traffic to transfer between major roads, commonly using ramps and grade-separated bridges or tunnels.
What is the difference between an interchange and an ordinary intersection?
At an ordinary intersection, traffic streams normally meet or cross at the same level. An interchange usually separates major traffic movements vertically and connects them using ramps.
Where are interchanges commonly found?
They are most common on motorways, expressways, ring roads and other high-capacity roads where stopping at ordinary intersections would disrupt traffic flow.
What is an interchange ramp?
A ramp is a connecting road that allows vehicles to enter, leave or transfer between the roads forming the interchange.
How should you approach an interchange?
Read the advance-direction signs early, identify your route or destination and move into the appropriate lane in sufficient time.
Should you make sudden lane changes at an interchange?
No. Interchanges can contain several exits and merging traffic streams. Signal in good time and change lane only when there is sufficient space to do so safely.
Who has priority when entering another road at an interchange?
This depends on the local signs, markings and merging rules. Drivers joining a motorway commonly have to give way to traffic already travelling on it, but local regulations must always be followed.
Can speed limits change on interchange ramps?
Yes. Ramps may have lower speed limits or require a lower safe speed because of bends, merging traffic or limited visibility.
What should you do if you miss your exit at an interchange?
Continue to the next suitable exit or interchange. Never reverse, stop unexpectedly or cross prohibited areas to return to a missed exit.
Are all interchanges designed the same way?
No. Common layouts include cloverleaf, diamond, trumpet and directional interchanges. Their design depends on traffic volumes, available space and the roads being connected.
