An at-grade intersection is a junction at which two or more transport axes cross at the same level (or grade).
With areas of high or fast traffic
, an at-grade intersection normally requires a traffic control device
such as a stop sign
or traffic light
or railway signal
to manage conflicting traffic.
The various types of at-grade intersections have different names. Examples are intersection
), level junction
) and railroad crossing
(both). Some of them can also mix transportation modalities
. An example of this is the railroad grade crossing
(American English) or level crossing
(British English) where roads cross railways at grade.