Light Distribution in Automotive Headlights

Improving visibility during adaptive driving beam (ADB) headlight operation by optimizing luminance transition between high and low beams when dimming around oncoming vehicles. The method involves setting a dimming range within the high beam coverage based on object positions, with lower luminance in a partial range near a virtual reference line. This prevents excessive high beam glare when dimming. If just low beams are on, lower luminance is set in the partial range.

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Vehicle headlight system that adaptively controls the light distribution patterns of multiple headlights based on surrounding objects in the camera view. The system has two headlights capable of forming variable intensity patterns. It adjusts the patterns for three scenarios: 1) outside objects, where it sets both lights to high intensity, 2) forward vehicles, where it sets both lights to low intensity shading, 3) specific targets, where it sets one light to fixed low intensity and the other to adjustable low intensity to match the target luminance. This balances glare reduction and visibility improvement.

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Optimizing headlight distribution for vehicles to balance dimming targets like oncoming vehicles and curves while avoiding glare. The system uses a behavior prediction and target acquisition to adapt the headlight pattern. If the own vehicle's behavior has low lateral movement, it emits full light on the dimming target. If the own vehicle's behavior has high lateral movement, it dims the target area differently. This prevents glare for preceding vehicles or oncoming vehicles when the own vehicle enters curves before them. The adaptation balances preventing glare and dimming targets.

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A light distribution control method and device for vehicle headlamps that mitigates discomfort and improves visibility for the driver when detecting oncoming vehicles with cameras. The method involves using camera images to generate light distribution patterns for the adaptive headlamps. When a camera detects a light spot from an oncoming vehicle, it generates a light shielding pattern for the headlamps to block that spot. If the camera doesn't see the light spot, no shielding is used. This prevents flickering and switching between light and dark areas when the camera detection is uncertain. By consistently shielding the detected light spot, it reduces discomfort and glare for the driver.

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A vehicle headlamp that smoothly transitions the light distribution pattern as the boundary between light and dark areas changes, reducing discomfort compared to sudden changes. The headlamp uses a matrix of individually controllable light emitting parts. The illuminance at each point is determined based on the adjacent brightness levels. As the boundary moves, the light levels smoothly fade between bright and dark areas. The total light output decreases as more points overlap the dark area. This gradual transition avoids abrupt changes in the light distribution pattern as the boundary shifts.

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Vehicle lighting system that improves visibility of pedestrians at night and in rainy conditions. It uses adaptive lighting with changing patterns in the low beam and side pattern lights based on environmental data. A device senses moisture around the vehicle and the lighting control adjusts the low beam intensity lower and side pattern light intensity higher in wet conditions. This balances illumination for driver visibility without over-illuminating pedestrians on the side.

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Vehicle headlight system that improves light utilization and reduces safety issues compared to traditional high/low beam systems. The system has a single adjustable light source for both high and low beams. When switching to low beam, the source angle is adjusted to project a low beam pattern. For high beam, the angle is adjusted to raise the light pattern vertically. This avoids wasting light when switching beams and keeps the low beam brightness high. The system also expands light coverage and brightness through adjustable light sources and projections.

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Vehicle lighting system that improves uniformity and flexibility of light distribution compared to single modules. The system uses arrays of identical and different type lighting modules arranged on the vehicle front face. The modules have different light distributions. By splicing and combining modules of different types, customized illumination patterns can be formed. This allows flexible control over the range and shape of the light distribution. The modules of the same type have identical distributions, which improves uniformity compared to single modules directly reaching the brightness.

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Intelligent adjustment of vehicle high beam lights to improve safety and convenience by automatically switching between high and low beams based on environment and vehicle conditions. The system uses sensors like cameras, radar, and light sensors to detect objects and conditions ahead. A control mechanism adjusts the position of the high and low beam lamps inside the headlamp housing. This allows the high beams to be aimed correctly without dazzling oncoming traffic or obscuring near objects. The intelligent adjustment system analyzes real-time vehicle and road data to switch between high and low beams optimally.

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Adaptive high and low beam matrix car lighting system using miniLED arrays that provides improved visibility and safety for night driving. The system has a miniLED array instead of traditional headlight sources. It dynamically adjusts the beam pattern based on surroundings using sensors. A heat dissipation system prevents overheating. The miniLED array is integrated on a circuit board with a heat sink, fan, and temperature control. The system optimizes heat dissipation, stabilizes the miniLEDs, and reduces brightness if they overheat.

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Vehicle headlamp with improved illumination when one lamp fails. The headlamp has two lamps on the left and right sides of the vehicle. If light intensity decreases in a region of one lamp due to a failure, the control system adjusts the other lamp to compensate. It brings the brightest region of the other lamp closer to the failed region. This prevents darkness in that area and maintains forward visibility. The compensation can be achieved by swiveling, leveling, or intensity adjustment of the other lamp, or derating the failed lamp's source.

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Vehicle headlamp design that improves visibility when turning by preventing dark spots on the turn side. The headlamp has separate right and left side lamps that contribute to the high beam pattern. The intensities of the overlapping areas between the right and left patterns are balanced to prevent valleys in the combined pattern. This prevents dark spots on the turn side when steering angles are large. The center of the combined pattern becomes brighter than the turn sides, making it easier to see where the vehicle is turning.

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This vehicle lamp uses a specific arrangement of first and second LEDs to achieve the desired luminance distribution pattern. The lamp has one central LED surrounded by four outer LEDs on a substrate. The luminance from these LEDs is arranged to have a central high-intensity region surrounded by progressively lower-intensity regions. This provides a balanced and uniform overall luminance distribution. The lamp achieves this using specific LED positions, sizes, and intensities.

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Vehicle lamps are capable of dynamically changing their light distribution pattern to create different lamp images. The lamp has multiple light source modules that form different light patterns. A movement mechanism moves one light source module while another rotates to vary the light distribution. This dynamically converts the overall light pattern to create various designs.

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Smoothly transitioning between different light functions for adaptive vehicle headlights that use segmented LED matrices. The headlights are controlled by selecting and superimposing pre-stored data sets specifying segment intensities for different light distributions. A smoothing function limits changes to avoid sudden transitions exceeding a maximum rate. This allows seamless switching between light distributions like dipped and full beams without requiring complex real-time calculations.

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Front lighting system for vehicles that provides improved high and low beams without dark areas between them. The system uses two separate light sources for high and low beams. A transparent shutter with carved slits redirects and concentrates light from the high-beam source. This allows for the use of large high-beam sources while avoiding shadows. The transparent shutter also has surfaces to control output distribution. The shutter is placed in focal planes of primary and secondary optics for efficient beam shaping.

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This is a vehicle headlight system with improved resolution and lower electronic complexity. The system uses two headlamps with light modules containing matrix arrangements of light pixels. Each module generates a light distribution by radiating light from individual pixels. This provides higher resolution without increasing the LED count. It also allows precise shaping of beam patterns. By splitting the beam generation between two lamps, the complexity and heat are reduced compared to one lamp.

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A light-guiding component that can enable multi-function vehicle lights using a single light source. The component has two light incidence areas facing different directions that receive light from separate sources. The light is guided by internal reflections to a shared exit surface area. This reduces the light guide's thickness compared to collinear light entry and exit areas.

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An optical system for multidirectional light propagation and control uses two colored layers placed between cavities to control the transmission, reflection, absorption, and direction of light within and through the cavities.

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A DMD headlamp system for vehicles that uses digital micro mirrors to adaptively control the beam pattern and avoid glare for oncoming vehicles. The system has an infrared emitter to project IR signals for detection. When an IR signal is received, the DMD pattern is changed to distinguish between IR from the vehicle and IR from the environment. This allows the DMD to calculate the control area for the headlamp beams based on the detected IR. The headlamp beams are then adjusted using the DMD to provide optimal illumination without glare for oncoming vehicles.

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Vehicle headlight system that improves visibility and reduces pedestrian accidents, especially at night or in poor weather. The headlight uses an irradiation pattern with alternating bright and dark regions that flows from the rear to the front of the vehicle. This moving pattern creates a visual cue that conspicuously highlights pedestrians in motion. When a stationary pedestrian is illuminated with the fixed pattern, their grid-like reflection doesn't move relative to the pedestrian outline, making them less noticeable. But with the flowing pattern, the grid pattern moves relative to the pedestrian contour, providing a clearer, more distinct reflection that stands out.

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Vehicle headlight device that improves visibility and reduces glare for oncoming traffic. The headlight has multiple LED clusters arranged in a specific pattern to provide a composite beam. The inner cluster illuminates the road ahead, and the outer clusters project light farther to the sides. This configuration creates a flatter, wider beam shape that reduces glare for oncoming drivers. The composite beam is also adaptive, adjusting brightness and pattern based on driving conditions.

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Vehicle headlight system that improves pedestrian visibility in adverse conditions like night or rain. The headlight uses multiple patterned lamps on each side instead of a single lamp. The left and right lamps project alternating bright and dark patterns onto pedestrians. When a moving pedestrian is illuminated, the bright and dark areas move relative to each other inside the pedestrian outline. This prevents the driver's visual stimulus from reducing and helps them better notice the moving pedestrian. The left and right lamps overlap in the center to avoid synchronization issues where the patterns appear to stop due to the pedestrian's motion.

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A front headlamp control system for vehicles that can efficiently adjust the light pattern of the headlamps based on environmental data like steering angle, road curvature, and navigation. The system changes the position and range of the high-intensity center portion of the beam to improve visibility in specific scenarios. This allows optimizing light distribution for curves, avoiding glare for oncoming vehicles, and increasing visibility when following a lead vehicle. The system uses existing vehicle sensors for steering and navigation instead of additional hardware.

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Quickly and easily controlling the light distribution of headlights in a vehicle without adding many parts or complex calculations. The system uses a single detection device to detect vehicles in front of the car. One headlight adjusts its light distribution based on the detected vehicles. The other headlight adjusts based on the difference in position between the detection device and that headlight. This allows both headlights to have accurate, coordinated light distribution without needing separate detection for each headlight.

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Vehicle lamp control to improve driver visibility by maintaining consistent road illumination as speed changes. The control adjusts lamp brightness and pattern based on speed. At low speeds, it maximizes close-range illumination. At high speeds, it reduces close-range brightness to prevent glare while keeping distant illumination consistent. This prevents overexposure and shadowing effects as speed changes.

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A method for improving lighting safety of vehicles at night or in poor weather by dynamically adjusting high beam intensity. The method involves separately controlling multiple light sources in a segmented high beam distribution. If glare is detected in one zone, that control is interrupted. The released power is then dynamically supplied to the remaining non-glare zones to increase their intensity. This improves visibility without dazzling other road users.

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Vehicle lamp that adjusts the light distribution pattern to provide better visibility and avoid glare when the vehicle is turning. The lamp has sensors to detect oncoming vehicles and tilting of the vehicle body. It then dynamically adjusts the side light distribution to maintain illumination of non-turning areas while avoiding lighting the oncoming vehicle's eyes. This provides improved visibility around corners without creating glare.

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Reducing glare from light reflectors in headlights while maintaining visibility by dynamically adjusting the brightness of light irradiated onto the reflectors based on their size. The method involves calculating the apparent size of reflectors visible from the vehicle and then irradiating smaller reflectors with full brightness and larger reflectors with reduced brightness. This aims to balance reducing glare from large reflectors without impairing visibility from small ones.

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Vehicle headlamp system that improves pedestrian safety by reducing blind spots at night and in poor weather. The headlamp uses a unique lighting pattern and magnification to enhance pedestrian visibility. It has a first light irradiation portion with a smaller magnification and alternating bright/dark pattern. This overlaps with the main high beam. The smaller magnification reduces blind spots by expanding the field of view compared to the main beam. This helps prevent overlooking pedestrians in conditions like night or rain.

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Headlamp with improved low beam visibility for vehicles. The headlamp has two low beam distribution modes. In the first mode, the entire low beam area in front of the vehicle is illuminated. In the second mode, the middle and end portions of the low beam area are illuminated brighter than the first mode. This provides improved illumination of areas like intersections and curves where objects are more likely to be present. The headlamp is controlled based on external conditions and vehicle operation to automatically switch between modes.

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Vehicle headlight adjustment device and method that dynamically adjusts the height and aim of low and high beams based on vehicle dynamics and environmental conditions to improve lighting effectiveness and safety. The device uses sensors to detect suspension height, vehicle position, road conditions, acceleration, and ambient light. A central control unit processes this data to determine body posture and adjust low beam height. It also adjusts high beam aim based on vehicle position. This dynamic lighting adapts to terrain, curves, obstacles, and lighting needs for better visibility without fixed static settings.

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Vehicle headlamp with adjustable light distribution patterns for improved visibility and reduced glare. The headlamp uses a spatial light modulator like mirrors, reflective panels, or liquid crystal displays to shape the light output. A control device adjusts parameters like brightness, rotation speed, deflection, and element selection to form desired patterns with both high and low light areas. This reduces the sharp transition between bright and dark regions compared to fixed patterns. The control adapts the patterns for factors like speed, steering, and surroundings to optimize visibility.

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Adjustment system for vehicle lighting that allows users to customize the headlight beam pattern without specialized knowledge. The system has a separate operator control unit that accepts user input to modify the headlight parameter set. The light control unit connected to the headlights receives the modified set and adjusts the headlights accordingly to emit the user-defined light distribution. This allows non-technical users to tailor the headlight pattern to their preferences, like wider or narrower beams, without requiring lighting expertise.

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Light distribution control for vehicle headlights that enhances lane recognition when visibility is poor. The system detects if the driver is having difficulty recognizing lane alignment due to bad weather or other conditions. If so, it selects a specialized light distribution pattern that makes lane recognition easier. This pattern is then used to illuminate the road instead of the normal distribution. The goal is to provide a light pattern that enhances lane recognition when visibility is poor, improving safety by making it easier for the driver to see the road markings and lane boundaries in challenging conditions.

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Vehicle headlamp that reduces power consumption by optimizing the light distribution pattern for different driving scenarios. The headlamp has a light emitting unit, a control unit, and a detection unit. The light distribution pattern has three areas: a left area, a right area, and a central area between them. When the vehicle is on a highway, the width of the central area is smaller than on a regular road. This reduces light in the center where overhead signs are, saving power. The right edge of the central area is higher than the right edge of the overhead sign light distribution. This moves the central area closer to the left and reduces light there. This adjustment for highway driving reduces power consumption without compromising visibility.

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Vehicle headlight adjustment system that dynamically optimizes low and high beam illumination based on vehicle conditions. The system uses sensors to detect factors like road conditions, vehicle acceleration, suspension height, and ambient light. It adjusts the low beam height based on body attitude change and adjusts high beam area based on preceding vehicle distance and light. This improves headlight effectiveness and reduces accidents compared to fixed beams.

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A variable light distribution system for vehicle headlights that can adapt the beam pattern based on vehicle speed to improve visibility and prevent glare. The system has a high beam, low beam, and auxiliary high beam. The auxiliary high beam interpolates between the high and low beams. The system changes the auxiliary beam's range as speed decreases, making it wider near the vehicle. This provides more light where needed at low speeds without blinding oncoming traffic. The high beam is downward and the auxiliary beam is lower than horizontal. This prevents glare when continuously used.

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A vehicle-road lighting system that uses V2X communication to improve lighting safety while preventing glare. The system involves vehicles communicating with smart roads. The roads receive vehicle info and generate lighting control and headlight suggestion based on driving conditions. The roads send lighting control to onboard modules and headlight suggestions to vehicles. The vehicles then adjust headlights accordingly. This allows coordinated, optimized lighting that prevents glare for oncoming vehicles and pedestrians. It also simplifies headlight design versus traditional adaptive systems.

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High-brightness array type intelligent headlight system for vehicles that provides improved illumination and safety compared to conventional headlights. The system uses multiple LED beams arranged in a circular array around a main high beam. The beams are driven independently based on vehicle speed, steering angle, slope, visibility, etc. This allows adaptive lighting for deceleration, acceleration, turning, uphill/downhill to avoid glare and improve illumination compared to fixed low/high beams. The multi-beam array also provides redundancy and failsafe lighting if some beams fail. The system uses a central processor to coordinate the beam control based on sensor inputs. This allows dynamic lighting optimization for safer and more effective night driving.

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Smart car headlight system that uses individually controllable LEDs to provide adaptive lighting based on external environment conditions. The headlight has a light source control module that adjusts LED brightness, color temperature, and gray levels based on signals from an environmental sensor. This allows intelligent lighting optimization for conditions like city vs highway driving, weather, and time of day. The LEDs are shaped and magnified using lenses to form independent parallel light beams without crosstalk. A heat sink on the LED back dissipates heat.

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Intelligent passenger car headlight system that can adaptively adjust the lighting area to improve visibility without dazzling other vehicles or reflecting back at the driver. The system collects sensor data and vehicle state information to determine the optimal lighting configuration. This allows variable and precise front lighting that avoids glare for oncoming traffic and eliminates reflections from signs. The system breaks the convention of just manual low/high beam control.

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Adaptive high beam headlights that optimize light distribution based on driving conditions. The headlights have multiple LED modules that can be independently controlled. When driving on the highway, edge modules are turned off to scan the beam farther. When turning, modules on the opposite side are turned off to improve visibility in that direction. This is done by sensing vehicle speed, lane curvature, and steering angle.

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A vehicle lighting system that improves visibility of the vehicle and allows adjusting the road drawing pattern based on vehicle state. The system has front headlamps, adjacent communication lamps, and a lighting control unit. When the headlamps are on, the communication lamps light up in a pattern that enhances visibility. Each segment of the communication lamp can have its own lighting state. This allows customized lighting patterns. The road drawing lamp can have a fixed or adjustable shape. It maintains the shape as the vehicle tilts. This provides consistent road markings. The system also adjusts the road drawing pattern based on vehicle tilt, obstacle detection, and follower distance. This provides dynamic road markings that adapt to vehicle conditions.

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Improving visual perception of the road ahead for a vehicle driver by optimizing the actuation of headlights. The invention involves a procedure for controlling the headlights that enhances visibility in specific driving scenarios. The procedure dynamically adjusts the brightness and aiming of the headlights based on factors like road conditions, traffic, and environment to provide optimal illumination. This adaptive headlight system aims to improve safety and comfort by maximizing visibility in challenging conditions.

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A headlamp control system for vehicles that automatically adjusts the brightness and aim of the functioning headlamp when one fails. The system uses vehicle speed, distance to the car in front, and failed headlamp info to determine optimal brightness and aim for the remaining headlamp. This compensates for the missing light when driving at night without a replacement headlamp. The control module receives signals from a headlamp checker, speed sensor, and distance sensor to dynamically adapt the functioning headlamp's light distribution.

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A vehicle headlight system that improves visibility when driving in queues. The system has adaptive headlights that can switch between high beam, low beam, and a queue driving mode. In queue mode, the headlights focus light towards the lower part of the back of the vehicle in front, making it easier for following drivers to see. This avoids glare and blind spots from high beams while queuing.

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A lighting control system for vehicle high beams that adapts the beam pattern to match driving conditions on highways. The system determines the optimal high beam irradiation area based on vehicle speed. For low speeds, it uses a wide beam. As speed increases, it narrows the high beam coverage on the sides, concentrating light in the center. This reduces lateral glare and allows drivers to focus on the road ahead. The system dynamically adjusts the high beam LEDs to match the irradiation area.

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A vehicle headlight that forms a variety of light distribution patterns by reducing the difficulty of seeing due to a light-dark boundary while providing a high-intensity region of a necessary portion. The headlight uses a spatial light modulator like mirrors, liquid crystals, or deflectors to dynamically change the light pattern. The modulator is controlled to blur the transition between bright and dark areas by adjusting size, position, and intensity of the low-intensity region. This reduces visibility issues from sharp boundaries. The control device adapts the light pattern based on vehicle speed, steering angle, road curvature, and surroundings to improve safety and comfort.

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Open-loop control of a vehicle's front light distribution to improve autonomous driving in low light conditions by optimizing the headlight pattern based on the surroundings detected by the vehicle's sensors. The method involves using the vehicle's environmental sensor system, like cameras, to determine the presence and positions of objects in front of the vehicle. The headlight distribution is then adjusted to provide optimal illumination for those objects while avoiding glare. This allows the vehicle's cameras to better see in low light when the headlights are on. The goal is to balance illumination needs for autonomous driving and comfort for oncoming traffic.

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