Driving

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controlled intersection

A controlled intersection utilizes road signs or traffic signals to control the flow of traffic through the intersection. Knowing and observing these signs and signals is imperative to your safety.

Stop sign

A stop-controlled intersection is another common type of a sign-controlled intersection. Vehicles entering the intersection from a road that has a stop sign installed must come to a complete stop and yield to cross traffic before going through the intersection. A four-way stop intersection requires vehicles coming from all directions to come to a complete stop before going through the intersections. Vehicles that arrive to the intersection first have the right of way.

Yield sign

A yield-controlled intersection is another common type of a controlled intersection that uses yield signs to prioritize traffic moving from a certain direction. Vehicles entering the intersection from a road that has a yield sign installed must slow down and give way to all other traffic going through the intersection.

highway interchange

An interchange is the intersection of two highways at different levels with connecting roads that transfer traffic from one highway to another. The main advantage of an interchange over a regular controlled intersection is that traffic can enter or leave either highway without stopping or interfering with other vehicles that are already traveling on the highway. This reduces traffic blocks and allows for more vehicles to pass through the intersection. Although there are many different types of interchanges, the most common ones are called "directional", "cloverleaf", "diamond" and "trumpet".

Intersections

An intersection is a point where two or more roads join together. An intersection is an especially dangerous part of the road due to the fact that vehicle trajectories may intersect, which would automatically result in a crash. According to statistics, crashes at intersections, driveways and highway entrance ramps are the second most common type of traffic accidents, it comes right after hitting a stationary object.

Traffic signal

Traffic signals are one of the most recognizable parts of road infrastructure, we learn how to use them from a very early age. Traffic signals control movement of all traffic through the intersection: this includes vehicles, cyclists and pedestrians. Traffic signals can be arranged in vertical or horizontal lines.

Road signs at intersections

Traffic signs may be installed directly at the intersection or on approaches to the intersection. Warning signs are usually installed on approaches to intersection, while regulatory signs are installed directly at the intersection.

uncontrolled intersection

Uncontrolled intersections are usually employed in places where low amount of traffic does not warrant installation of additional traffic control devices or where such traffic control devices may not perform at their best and confuse drivers. When going through an uncontrolled intersection, you must observe the right-of-way rules and pay due caution. Two most-recognizable types of uncontrolled intersections are highway interchanges and roundabouts.

roundabout

another type of uncontrolled intersections where traffic circulates around an island in the middle of the intersection. Vehicles that are about the enter a roundabout must yield to traffic that is already on the roundabout. Always look out for and yield to pedestrians and cyclists that are crossing the road. Note: some roundabouts are controlled by yield signs and additional pavement markings but it does not change the right-of-way rules.


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