Difference between revisions of "Four-ramp interchange"
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'''Four-ramp interchanges''' are desirable for hitchikers because they require all traffic attempting to head a given direction on a freeway to enter the freeway on a single ramp. The hitchhiker stands on this ramp and is then exposed to all possible traffic entering the freeway. | '''Four-ramp interchanges''' are desirable for hitchikers because they require all traffic attempting to head a given direction on a freeway to enter the freeway on a single ramp. The hitchhiker stands on this ramp and is then exposed to all possible traffic entering the freeway. | ||
This is in contrast to a [[split-traffic interchange]] which splits traffic entering the freeway into multiple ramps. | This is in contrast to a [[split-traffic interchange]] which splits traffic entering the freeway into multiple ramps. | ||
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Revision as of 10:43, 27 October 2024
File:Four-ramp.png
A diagram of a diamond interchange, the most common kind of four-ramp interchange. All traffic attempting to enter the blue highway northbound will enter via ramp 'X.'
A four-ramp interchange is the most common interchange in the United States where a non controlled access highway intersects a controlled access highway: commonly an interstate/turnpike or other type of freeway.
Four-ramp interchanges are desirable for hitchikers because they require all traffic attempting to head a given direction on a freeway to enter the freeway on a single ramp. The hitchhiker stands on this ramp and is then exposed to all possible traffic entering the freeway. This is in contrast to a split-traffic interchange which splits traffic entering the freeway into multiple ramps.
