Lanes of traffic on expressways that flow in opposing directions are divided by a median.
The highway ahead is split by some type of physical barrier or median. The "Divided highway" sign approach that the two lanes of opposing traffic at the highway ahead are divided via some kind of physical barrier or median including a guardrail, concrete barrier, or a strip of land.
Expressway lane markings are of a one-of-a-kind design and which means on different roadways. Parking or stopping on expressways is not authorized except if it is at the shoulder of the expressway.
The 3 most commonplace expressways interchange types are cloverleaf, diamond, and trumpet interchanges.
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