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Turn lanes can increase the capacity of an intersection or improve safety. Turn lanes can have a dramatic effect on the safety of a junction. In rural areas, crash frequency can be reduced by up to 48% if left turn lanes are provided on both main-road approaches at stop-controlled intersections.
A continuous flow intersection (CFI), also called a crossover displaced left-turn (XDL or DLT), is an alternative design for an at-grade road junction. Vehicles attempting to turn across the opposing direction of traffic (left in right-hand drive jurisdictions; right in left-hand drive jurisdictions) cross before they enter the intersection.
Michigan left. Standard design on a wide median [1] Stylized depiction of the design in Grand Haven, Michigan, at US 31 and Robbins Road (north to the right), showing the additional area necessary to make a turn on a narrow median [1] 43°2′40.18″N 86°13′12.57″W. A Michigan left or P-turn is an at-grade intersection design that ...
Intersection sight distance is the sight distance needed to safely proceed through an intersection. The distance needed depends on the type of traffic control at the intersection (uncontrolled, yield sign, stop sign or signal), and the maneuver (left turn, right turn, or proceeding straight).
An intersection where vehicles attempting to turn across the opposing direction of traffic (left in right-hand drive jurisdictions; right in left-hand drive jurisdictions) cross before they enter the intersection. No left turn signal in the intersection is then necessary. Continuous green T-intersection. See seagull intersection. Contraflow ...
Two cars are involved in a side collision at an intersection in Tokyo, Japan A side collision is a vehicle crash where the side of one or more vehicles is impacted. These crashes typically occur at intersections , in parking lots , and when two vehicles pass on a multi-lane roadway.
A collision avoidance system (CAS), also known as a pre-crash system, forward collision warning system (FCW), or collision mitigation system, is an advanced driver-assistance system designed to prevent or reduce the severity of a collision. [2] In its basic form, a forward collision warning system monitors a vehicle's speed, the speed of the ...
In a lane diet, the width of a car lane is decreased to reduce vehicle speeds and accidents [1] and provide space for other use. [4] Typically vehicular travel lane widths are narrowed to no more than 9.1 feet (2.8 m), [5] and left turn (in countries where cars travel on the right-hand side of the road) storage lanes between 9 and 10 feet (2.7 and 3.0 m). [6]