At-grade intersection
From Infogalactic: the planetary knowledge core
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File:At-grade intersection diagram.svg
A diagram of a four-way stop at-grade intersection
File:Road.ba.b777.arp.jpg
An unusual at-grade intersection with mixed modalities at London Heathrow Airport, England. A British Airways Boeing 777-200 is being towed across a public road on its way to the maintenance hangars.
An at-grade intersection is a junction at which two or more transport axes cross at the same level (or grade).
Traffic management
With areas of high or fast traffic, an at-grade intersection normally requires a traffic control device such as a stop sign, traffic light or railway signal to manage conflicting traffic.
