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What is the difference between transverse deceleration and longitudinal deceleration?

1 Answers

DelCalvin

07/30/25 9:12am

Different appearances: transverse deceleration markings are rectangular dashed lines; longitudinal deceleration markings are diamond-shaped. Different directions: transverse deceleration markings are perpendicular to the direction of vehicle travel; longitudinal deceleration markings are parallel to the direction of vehicle travel. The standard term for deceleration markings is deceleration markings. Here are the specific details: 1. Transverse deceleration markings: White dashed lines set up in toll plaza, exit ramps, or other sections of the road where vehicle deceleration is required. They come in single, double, or triple dashed lines, perpendicular to the direction of travel. The transverse deceleration markings are a set of parallel white dashed lines designed to alert drivers to slow down. 2. Longitudinal deceleration markings: The longitudinal deceleration markings are a set of diamond-shaped dashed lines parallel to the lane dividing lines. At the starting position of the longitudinal deceleration markings, a gradient section is set up, where the diamond-shaped dashed lines gradually widen from narrow to wide, ranging from centimeters to centimeters. These markings are one of the new additions in the national standard for road traffic markings (GB78.-dao9). When vehicles pass through sections with longitudinal deceleration markings, drivers' subjective vision will perceive the lane gradually narrowing, prompting them to increase attention, actively take deceleration measures, and proceed slowly. This can effectively prevent drivers from applying sudden brakes when approaching the stop line. Pedestrians on crosswalks can clearly feel vehicles yielding, thus gaining a sense of safety, reflecting a harmonious traffic environment between pedestrians and vehicles.

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