What are the four types of interstate interchanges? - ProProfs Discuss
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What are the four types of interstate interchanges?

What are the four types of interstate interchanges?

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A. Cloverleaf- eliminates left turn and cross traffic
B. Diamond-little traffic crosses a busy expressway
C. Trumpet- side road forms a t intersection with an expressway
D. Directional-complicated intersections with high volume of traffic, diff directions
E. One way- simple interesections with low volume of traffic going in one direction

This question is part of Drivers ed practice final exam
Asked by Geekburger, Last updated: Mar 22, 2018

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3 Answers

C. Perez

Just getting better day by day

C. PerezWriter, Writer, Cleveland
Writer, Writer, Cleveland

Answered on Aug 01, 2019


There are four correct answers to this question, which are:

A. Cloverleaf- eliminates left turn and cross-traffic. With this interchange, ramp roads handle the left turns. It is an interchange, which as two levels.

B. Diamond-little traffic crosses a busy expressway. This interchange is very common, and it occurs when a freeway crosses a minor road.

C. Trumpet- side road forms at the intersection with an expressway. This occurs when one highway ends at another one.

D. Directional-complicated intersections with a high volume of traffic, diff directions. This has connected, which are directed at the major turning movements. Those directions usually are 90 degrees.

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N. Kingsley

N. KingsleyWriter, Columbus
Writer, Columbus

Answered on Sep 18, 2018

Directional T interchanges use fly/over/underpass ramps for both connecting and mainline segments. They require an average amount of land and costs. Cloverleaf interchange is typically a two-level, four-way interchange where all turns across opposing non-directional loop ramps handle traffic.

The diamond interchange is economical in use of materials and land than other interchange designs. Basketweave interchange is commonly found on highways using a collector/express system of running collector-distributor lanes. Trumpet interchanges are used where one highway terminates at another highway.

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John Smith

John Smith

Answered on Dec 20, 2016

The four types of interstate interchanges are as follows:

A. Cloverleaf- eliminates left turn and cross traffic
B. Diamond-little traffic crosses a busy expressway
C. Trumpet- side road forms a t intersection with an expressway
D. Directional-complicated intersections with high volume of traffic, diff directions

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