An uncontrolled intersection is a road intersection where no traffic lights, road markings or signs are used to indicate the right of way. They are found either in residential neighborhoods or in rural areas. While the intersection itself is unmarked, warning signs or lights may be present to alert drivers to it.

Uncontrolled T-intersection

At an uncontrolled T-junction (3-way intersection), right of way rules differ from country to country. In Australia, the United Kingdom, New Zealand and parts of the United States (really just California as is cited), traffic on the terminating road must give way (yield) to traffic on the continuing road. In Germany, traffic generally has to give way to traffic on the right at an uncontrolled intersection, whether it is a 3-way intersection or not. This is also the case in many US states, such as Washington.

Uncontrolled 4-way intersection

At uncontrolled 4-way intersections, the common rules are: Common practice dictates that drivers will treat the intersection as if they have a give way (yield) sign and look both directions for cross-traffic to avoid any accidents with motorists who did not recognize or did not follow the uncontrolled intersection rule.