Sight guidance system for urban underground road small-spacing continuous exits

Abstract

The invention relates to a sight guidance system for small-spacing continuous exits of urban underground roads, a tunnel section comprises a forecast section, a warning section, an action section and an informing section which are divided from left to right, the informing section is connected with a shading shed section, ground lanes of the forecast section, the warning section and the action section are respectively divided into a left lane, a middle lane and a right lane, and the left lane, the middle lane and the right lane are connected with the shading shed section. A left lane, a middle lane and a right bifurcation lane are arranged on a ground lane of the notification section, a first corresponding exit road sign is arranged at the starting point of the pre-notification section, a second corresponding exit road sign is arranged at the starting point of the warning section, a third corresponding exit indicator is arranged at the starting point of the action section, and a fourth corresponding indicator is arranged at the entrance of the notification section. The middle section of the informing section is provided with a same-color indicating reflective ring, and the right side of the starting point of the shading shed section is provided with a same-color right turn prompting sign. According to the invention, the driving demands of each segment of the driver are analyzed based on the driving task hierarchy, so that the driver can quickly identify the driving task and make a response easily.

Description

Technical Field

[0001] The present invention relates to the field of tunnel traffic safety design, and more particularly to a sight line guidance system for small-spacing continuous exits of urban underground roads. Background Art

[0002] The closely spaced, continuous exits in urban underground roads present numerous challenges for drivers. When faced with closely spaced exits, drivers must quickly make a series of complex decisions, such as selecting the appropriate exit, determining exit location, and changing lanes. Due to the close spacing between exits, drivers often struggle to accurately acquire and process the large amount of information within a limited timeframe. Limited visibility further exacerbates this difficulty. Furthermore, the enclosed environment of tunnels can cause psychological stress for drivers, leading to deviations in their spatial perception and directional judgment, and consequently, errors in their exit judgment. Under these circumstances, drivers are prone to erratic maneuvers such as frequent lane changes, sudden braking, or acceleration. These behaviors not only impact driving comfort but can also easily lead to traffic accidents such as rear-end collisions and collisions, posing a serious threat to road safety.

[0003] At present, there is relatively little research on small-spacing continuous exits on urban underground roads. Existing technologies mainly focus on simple sign and marking settings. These simple settings cannot provide targeted guidance according to different levels of driving tasks and lack systematicity and effectiveness. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a sight guidance system for small-spacing continuous exits on urban underground roads, which can reduce the risk of vehicle collision, optimize traffic flow organization, and guide drivers to accurately judge the exit direction and driving trajectory.

[0005] The technical solution adopted by the present invention to solve its technical problems is: constructing a sight guidance system for small-spacing continuous exits on urban underground roads, the urban underground road tunnel section and the sunshade section, the tunnel section includes a warning section, a warning section, an action section and a notification section divided from left to right, the notification section is connected to the sunshade section, the ground lanes of the warning section, the action section are divided into a left lane, a middle lane and a right lane, the ground lanes of the notification section are provided with a left lane, a middle lane and a right bifurcated lane, a first corresponding exit sign is provided at the starting point of the warning section, a second corresponding exit sign is provided at the starting point of the action section, a third corresponding exit indicator is provided at the starting point of the action section, a fourth corresponding indicator is provided at the entrance of the notification section, the middle section of the notification section is provided with a same-color indicator reflective ring, and a same-color right turn prompt sign is provided on the right side of the starting point of the sunshade section.

[0006] According to the above solution, a plurality of triangular indicator markings of the same color are evenly arranged on both sides of the ground line of the right lane of the warning section;

[0007] A plurality of strong triangular indicator lines of the same color are evenly arranged on both sides of the ground line of the right lane of the warning section, a plurality of tooth-shaped indicator lines of the same color are evenly arranged on both sides of the ground line of the middle lane of the warning section, and a plurality of elliptical indicator lines of the same color are evenly arranged on both sides of the ground line of the left lane of the warning section;

[0008] A plurality of strong triangular indicator lines of the same color are evenly arranged on both sides of the ground line of the right lane of the action section, a gradient corrugated belt line is arranged on the right wall of the action section, a plurality of tooth-shaped indicator lines of the same color are evenly arranged on both sides of the ground line of the middle lane of the action section, and a plurality of oval indicator lines of the same color are evenly arranged on both sides of the ground line of the left lane of the action section;

[0009] A plurality of inductive triangle markings of the same color are arranged on both sides of the ground line of the right fork lane of the notification section, a plurality of tooth-shaped indicator markings of the same color are evenly arranged on both sides of the ground line of the middle lane of the action section, a plurality of oval indicator markings of the same color are evenly arranged on both sides of the ground line of the left lane of the action section, and a gradient corrugated belt line is arranged on both the left and right walls of the notification section;

[0010] A transitional corrugated straight belt line is provided on the left side wall of the shading shed section, a transitional corrugated right-turning belt line is provided on the right side wall of the shading shed section, and an induction-type hollow shading shed roof is provided on the top of the shading shed section.

[0011] According to the above scheme, the first corresponding exit road sign is a rectangle with a length × width of 400 cm × 200 cm. The first corresponding exit road sign is set at 50 cm from the top of the tunnel. A straight-line indicator arrow and a right-turn indicator arrow are superimposed on each other in the middle of the first corresponding exit road sign. The straight-line indicator arrow is colorless, and the right-turn indicator arrow is set to red. The left side of the straight-line indicator arrow is marked with "Destination 1" and "Destination 2", and the right side of the right-turn indicator arrow is marked with "Destination 3", "Speed Limit" and "Triangular Indicator Marking of the Same Color";

[0012] The same-color triangular indicator line is a single-layer embedded equilateral triangle, the side length of the outer triangle is 55 cm, and the side length of the embedded triangle is 50 cm. The gap between the outer triangle and the embedded triangle is provided with red fluorescent paint. The same-color triangular indicator line is set at an interval that satisfies the equation:

[0013] d=v×t

[0014] Where d is the interval distance, v is the vehicle speed, t is the strobe time that is comfortable for the human eye, and the distance between adjacent triangle indicator lines of the same color is 1.3 to 1.5 meters;

[0015] The second corresponding exit sign is a rectangle with a length × width of 600 cm × 80 cm. The second corresponding exit sign is set 50 cm away from the top of the tunnel. The second corresponding exit sign includes a right second corresponding exit sign, a middle second corresponding exit sign, and a left second corresponding exit sign. The bottom of the right second corresponding exit sign is provided with red reflective paint, the middle second corresponding exit sign is provided with green reflective paint, and the left second corresponding exit sign is provided with orange reflective paint. The left and right sides of the right second corresponding exit sign are marked with "Destination 1" and "Oval indicator line of the same color", respectively. The left and right sides of the middle second corresponding exit sign are marked with "Destination 2" and "Tooth indicator line of the same color", respectively. The left and right sides of the left second corresponding exit sign are marked with "Destination 3" and "Strong triangle indicator line of the same color", respectively.

[0016] The same-color strong triangle indicator line is a double-layer embedded equilateral triangle, the side length of the outer equilateral triangle is 60 cm, the side length of the outer inner equilateral triangle is 50 cm, the side length of the inner outer triangle is 30 cm, and the side length of the inner inner triangle is 24 cm. The gap between the outer equilateral triangle and the outer inner equilateral triangle is provided with a red fluorescent material, and the gap between the inner outer triangle and the inner inner triangle is provided with a red fluorescent material. The adjacent same-color strong triangle indicator lines are provided to satisfy the equation:

[0017] d=v×t

[0018] Where d is the separation distance, v is the vehicle speed, and t is the strobe time that is comfortable for the human eye;

[0019] The same-color tooth-shaped indicator marking line is a single-layer embedded pentagonal structure with a rectangular lower part and a triangular upper part. The base length of the outer pentagon is 70 cm, the height is 40 cm, and the vertex angle is 120°. The base length of the inner pentagon is 64 cm, the height is 34 cm, and the vertex angle is 120°. The gap between the outer and inner pentagons is provided with a green silver material. The spacing between adjacent same-color tooth-shaped indicator marking lines satisfies the equation:

[0020] d=v×t

[0021] Where d is the separation distance, v is the vehicle speed, and t is the strobe time that is comfortable for the human eye;

[0022] The same color elliptical indicator line satisfies the equation:

[0023]

[0024] The same-color elliptical indicator markings are single-layer semi-elliptical structures that retain the upper half of the x-axis, and the width is set to 6 cm; the same-color elliptical indicator markings are provided with orange fluorescent material, and the adjacent same-color elliptical indicator markings are set to satisfy the equation:

[0025] d=v×t

[0026] Where d is the separation distance, v is the vehicle speed, and t is the strobe time that is comfortable for the human eye;

[0027] The third corresponding exit indicator includes a left third corresponding exit indicator and a right third corresponding exit indicator. The left third corresponding exit indicator is set at the top of the entrance of the action section and is located in the middle of the left lane and the middle lane. The right third corresponding exit indicator is set at the entrance of the action section and is located at the top of the right lane; the left third corresponding exit indicator is a rectangle with a length × width of 220cm × 80cm and is set at 50cm from the top of the tunnel. The left and right sides of the left half of the left third corresponding exit indicator are marked with "Destination 1" and "Oval indicator of the same color" respectively. The third corresponding exit sign on the left is a rectangle with a length × width of 400 cm × 80 cm and is located 50 cm away from the top of the tunnel. The left and right sides of the third corresponding exit sign are marked with "Destination 3" and "Right Arrow" respectively, and the bottom of the third corresponding exit sign on the right is painted with red reflective paint with a height of 20 cm.

[0028] According to the above scheme, the gradient corrugated belt line is set 2m from the ground. The gradient corrugated belt line includes a center line, a corrugated arc mark and a reflective sheet. The center line width is 15cm, the corrugated arc mark is 60cm long and 45cm wide, and the length × width of the reflective sheet is 15cm * 15cm; the corrugated arc mark and the reflective sheet are evenly spaced on the center line.

[0029] The gradient corrugated belt line provided on the right side wall of the right lane of the action section and the gradient corrugated belt line provided on the right side wall of the right diverging lane of the notification section are both red;

[0030] The gradient corrugated belt line provided on the left side wall of the left lane of the action section and the gradient corrugated belt line provided on the left side wall of the left lane of the notification section are both orange;

[0031] The gradient corrugated belt line provided on the right side wall of the middle lane of the notification section is green; the adjacent corrugated arc mark satisfies the equation:

[0032] d=v×t

[0033] Among them, d is the interval distance, v is the vehicle speed, and t is the strobe time that is comfortable for the human eye.

[0034] According to the above solution, the fourth corresponding indicator includes a left fourth corresponding indicator, a middle fourth corresponding indicator and a right fourth corresponding indicator;

[0035] The fourth right corresponding indicator is located above the right road, with its upper edge 50 cm from the top of the tunnel. It is a rectangle of 300 cm by 80 cm. The left and right sides of the fourth right corresponding indicator are marked with "Destination 3" and "Right Indicator Arrow" respectively. The angle is set to 45 degrees from the middle. The bottom of the fourth right corresponding indicator is provided with red reflective paint with a height of 20 cm.

[0036] The fourth middle corresponding sign is located above the middle lane, with its upper edge 50 cm from the top of the tunnel. It is a 200 cm x 80 cm rectangle. "Destination 2" and "Right Arrow" are marked on the left and right sides of the middle lane, respectively. The angle is set to deflect 15 degrees from the middle. The bottom of the fourth middle corresponding sign is painted with green reflective paint at a height of 20 cm.

[0037] The fourth corresponding indicator on the left is located above the middle lane, with the upper edge 50 cm away from the top of the tunnel. It is a rectangle of 200 cm*80 cm. "Destination 1" and "Straight Arrow" are marked on the left and right sides above the middle lane respectively. The bottom of the fourth corresponding indicator on the left is covered with red reflective paint with a height of 20 cm.

[0038] According to the above scheme, the inductive same-color triangle markings are set on both sides of the ground line of the right fork lane. The inductive same-color triangle marking line set on the right side of the ground line of the right fork lane is a single-layer embedded equilateral triangle, the outer equilateral triangle has a side length of 55 cm, and the inner equilateral triangle has a side length of 40 cm. The gap between the outer equilateral triangle and the inner equilateral triangle is provided with red fluorescent material. The inductive same-color triangle marking line set on the left side of the ground line of the right fork lane is a single-layer embedded isosceles triangle, the outer isosceles triangle has a waist length of 75 cm and a base length of 42 cm, the inner isosceles triangle has a waist length of 60 cm and a base length of 27 cm. The gap between the outer isosceles triangle and the inner equilateral triangle is provided with red fluorescent material. The inductive same-color triangle markings on the left and right sides have the same intervals and are staggered.

[0039] According to the above scheme, the same-color indicator reflective ring is set ten meters behind the fourth corresponding indicator mark. The same-color indicator reflective ring is a color-matching reflective ring connected in the middle, with an orange reflective film on the left and a green reflective film on the right;

[0040] The same-color right-turn sign includes a pole and a rectangular signboard. The pole is a steel pipe. The rectangular signboard is provided with a green reflective film. The rectangular signboard is arranged on the upper part of the pole. The rectangular signboard is a rectangle with a length of 40 cm and a width of 80 cm. The rectangular signboard has "destination" and "right-turn arrow" arranged on the upper and lower parts.

[0041] According to the above scheme, the transition corrugated straight belt line is an orange reflective film and includes a continuously arranged center line segment and arrow segment; the center line segment includes a center line and an arc mark, the arc mark includes six intervals arranged on the center line, the arrow segment is a plurality of evenly spaced arrows, and the adjacent arrows are spaced 100 cm apart. The center line is set at 90 cm from the ground, and the length of the center line is 200 cm and the width is 15 cm.

[0042] According to the above scheme, the transition corrugated right-turn belt line is a green reflective film, and includes a continuously arranged center line segment and a long strip segment; the center line segment includes a center line and an arc block, and the arc block includes six intervals arranged on the center line. The arc block gradually transitions to a long strip row, and the long strip segment is a plurality of intervals arranged long strips; the length of the first long strip is 90 cm, and the length ratio and spacing ratio of adjacent long strips are both 1.1:1. The height of the next long strip is moved down by 10 cm until the long strip is close to the ground and disappears.

[0043] According to the above scheme, the top of the induction type hollow awning is provided with arrow-shaped hollow and wing-shaped hollow;

[0044] The arrow-shaped hollow is set on the left side of the top of the induction hollow sunshade shed, the length of the arrow-shaped hollow is 120 cm, the width is 100 cm, and the adjacent arrow-shaped hollows are evenly spaced 120 cm apart; the arrow-shaped hollow is provided with red reflective material and a red LED light;

[0045] The wing-shaped hollow is arranged on the right side of the top of the induced hollow sunshade shed. The wing-shaped hollow is a triangle with an arc segment on the top and a straight segment on the bottom. The arc segment is the positive semi-axis part that satisfies the equation y^2=2px. The angle between the left and right of the straight segment is 120°. The adjacent wing-shaped hollows are evenly spaced at a distance of 120 cm. The wing-shaped hollow is provided with green reflective material and green LED lights.

[0046] The sight line guidance system for small-spacing continuous exits in urban underground roads according to the present invention has the following beneficial effects:

[0047] 1. The present invention divides tunnel sections into a warning section, a caution section, an action section, and a notification section based on driving task hierarchies. Different guidance signs are provided in different sections, and the degree of guidance gradually deepens in a step-by-step manner. In the warning section, advance notification is provided. At this stage, the driver is informed of the exit and exit-related information ahead, clarifying his or her driving purpose, and guiding the driver to turn into the rightmost lane first to prepare for subsequent operations. In the caution section, a stronger reminder is provided by setting a strong triangular indicator line of the same color. The triangular indicator line is set in the rightmost lane and is more eye-catching than the triangular indicator line in the warning section, further enhancing the driver's lane perception and reminding drivers who have not yet entered the right lane to do so quickly. In the action section, clear guidance is provided, and drivers in all three lanes are reminded simultaneously by using color differentiation to help drivers quickly realize the selected lane. In the notification section, confirmation is strengthened by using comprehensive reminders and guiding driver behavior through a special triangle design. Finally, a final sight guidance is provided at the exit to prevent the driver from suddenly losing reference points and remind the driver of the upcoming driving direction. The system works at different stages through a variety of facilities, guiding the driver in a step-by-step and hierarchical manner, helping him to complete driving decisions and operations step by step;

[0048] 2. The present invention uses different indications for the three lanes, distinguishing them not only by color but also by the shape of the markings. The first exit is the most stimulating and uses a triangle for prompting. The second exit is slightly weaker and uses a pentagon for prompting. The last exit uses a flat oval for flexible prompting, reflecting the hierarchical driving task reminders.

[0049] 3. The present invention optimizes the driver's visual environment and adopts multiple gradient designs in multiple places to alleviate the driver's visual fatigue to a certain extent. Its rhythmicity brings psychological comfort to the driver and improves the comfort during driving. It can invisibly induce the driver to make correct driving choices, which helps to improve driving accuracy and comfort; the hollow design of the top of the induction hollow sunshade awning is adopted, and there are corresponding color coatings and LED lights inside. During the day, the hollow pattern is projected onto the ground using sunlight to remind the driver of the driving direction, while reducing the energy consumption of the tunnel and achieving the effect of energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0051] Figure 1 This is a schematic structural diagram of a sightline guidance system for continuous exits with small spacing in urban underground roads according to the present invention;

[0052] Figure 2 It is a structural schematic diagram of the first corresponding exit road sign of the present invention;

[0053] Figure 3This is a schematic structural diagram of the same-color triangular indicator line of the present invention;

[0054] Figure 4 It is a structural schematic diagram of the second corresponding exit road sign of the present invention;

[0055] Figure 5 This is a structural diagram of the same-color strong triangle indicator line of the present invention;

[0056] Figure 6 This is a structural diagram of the tooth-shaped indicator marking line of the same color of the present invention;

[0057] Figure 7 This is a schematic structural diagram of the same-color elliptical indicator line of the present invention;

[0058] Figure 8 It is a schematic structural diagram of the third corresponding exit sign of the present invention;

[0059] Figure 9 This is a schematic structural diagram of a gradient corrugated waistband line according to the present invention;

[0060] Figure 10 is a schematic structural diagram of a fourth corresponding indicator of the present invention;

[0061] Figure 11 This is a schematic structural diagram of the same-color indicating reflective ring of the present invention;

[0062] Figure 12 This is a top view of the inductive same-color triangular markings of the present invention set on both sides of the ground line of the right fork lane of the notification section;

[0063] Figure 13 It is a structural schematic diagram of the ground marking of the present invention;

[0064] Figure 14 This is a schematic structural diagram of a same-color right-turn sign according to the present invention;

[0065] Figure 15 This is a schematic structural diagram of a transitional corrugated straight belt line of the present invention;

[0066] Figure 16 This is a schematic structural diagram of a transitional corrugated right-turn belt line according to the present invention;

[0067] Figure 17 This is a schematic side view of the structure of the induction-type hollow sunshade shed of the present invention;

[0068] Figure 18 This is a top view of the inductive hollow shading shed roof of the present invention;

[0069] Figure 19 It is a schematic diagram of the working principle of the sight line induction of the present invention;

[0070] Figure 20is a color distribution diagram of the gradient corrugated waistband line of the present invention in the action section and the notification section;

[0071] Figure 21 This is a schematic structural diagram of the hollowed-out airfoil of the present invention;

[0072] In the figure: 1. First corresponding exit road sign, 2. Triangular indicator line of the same color, 3. Second corresponding exit road sign, 4. Strong triangle indicator line of the same color, 5. Toothed indicator line of the same color, 6. Oval indicator line of the same color, 7. Third corresponding exit sign, 8. Gradient corrugated belt line, 801, Corrugated arc mark, 802, Reflective sheet, 9. Fourth corresponding sign, 10. Reflective ring of the same color, 11. Inductive triangular marking line of the same color, 12. Right turn sign of the same color, 1201, Rectangular signboard, 1202, Pole, 13. Transitional corrugated straight belt line, 14. Inductive hollow sunshade roof, 1401, Wing-shaped hollow, 1402, Arrow-shaped hollow, 15. Transitional corrugated right turn belt line. DETAILED DESCRIPTION

[0073] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0074] like Figure 1-21 As shown, the visual guidance system for small-spacing continuous exits of urban underground roads of the present invention comprises an urban underground road tunnel section and a sunshade section, wherein the tunnel section comprises a warning section, a warning section, an action section and a notification section divided from left to right, the notification section being connected to the sunshade section, and the ground lanes of the warning section, the action section are divided into a left lane, a middle lane and a right lane, and the ground lanes of the notification section are provided with a left lane, a middle lane and a right bifurcated lane, a first corresponding exit sign 1 is provided at the starting point of the warning section, a second corresponding exit sign 3 is provided at the starting point of the warning section, a third corresponding exit indicator 7 is provided at the starting point of the action section, a fourth corresponding indicator 9 is provided at the entrance of the notification section, a same-color indicator reflective ring 10 is provided in the middle section of the notification section, and a same-color right-turn prompt sign 12 is provided on the right side of the starting point of the sunshade section.

[0075] To select the main color for each lane, calculate the hue value (H) of different colors and select the color with the largest hue difference as the distinguishing color for the three lanes:

[0076] r=R / 255,g=G / 255,b=B / 255

[0077]

[0078] Where: max = (r, g, b), min = min (r, g, b),

[0079] The H value ranges from 0 to 360, with 30 being the primary color. Categories 1 to 6 correspond to red, orange, yellow, green, blue, and purple. Because the right lane has the highest stimulation requirements, red is chosen as the primary color for that lane, representing Category 1. The middle lane uses Category 4 green, which has a large hue difference, as the primary color. Since blue is the base color of the sign, Category 2 orange, which has a large hue difference from both green and blue, is chosen as the primary color for the left lane.

[0080] On both sides of the right lane ground line of the warning section, a plurality of triangle indicator markings 2 of the same color are evenly arranged; on both sides of the right lane ground line of the warning section, a plurality of strong triangle indicator markings 4 of the same color are evenly arranged; on both sides of the middle lane ground line of the warning section, a plurality of tooth-shaped indicator markings 5 of the same color are evenly arranged; on both sides of the left lane ground line of the warning section, a plurality of elliptical indicator markings 6 of the same color are evenly arranged; on both sides of the right lane ground line of the action section, a plurality of strong triangle indicator markings 4 of the same color are evenly arranged; on the right wall of the action section, a gradient corrugated belt line 8 is arranged; on both sides of the middle lane ground line of the action section, a plurality of tooth-shaped indicator markings 5 of the same color are evenly arranged; on the left side of the action section, a plurality of strong triangle indicator markings 4 of the same color are evenly arranged There are multiple elliptical indicating lines 6 of the same color evenly arranged on both sides of the ground line of the intermediate lane; there are multiple inductive triangular indicating lines 11 of the same color evenly arranged on both sides of the ground line of the right fork lane of the notification section, there are multiple serrated indicating lines 5 of the same color evenly arranged on both sides of the ground line of the middle lane of the action section, there are multiple elliptical indicating lines 6 of the same color evenly arranged on both sides of the ground line of the left intermediate lane of the action section, and gradient corrugated belt lines 8 are arranged on the left and right walls of the notification section; there is a transition corrugated straight belt line 13 on the left side wall of the awning section, and a transition corrugated right turn belt line 15 on the right side wall of the awning section, and an inductive hollow awning roof 14 is arranged on the top of the awning section.

[0081] The first corresponding exit sign 1 is a rectangle measuring 400cm long x 200cm wide. It is located 50cm from the top of the tunnel. A straight arrow and a right-turn arrow are superimposed on each other in the center of the first corresponding exit sign 1. The straight arrow is colorless, while the right-turn arrow is red. "Destination 1" and "Destination 2" are marked to the left of the straight arrow, while "Destination 3," "Speed Limit," and "Same-Color Triangular Indicator Marking 2" are marked to the right of the right-turn arrow. The same-color triangular indicator marking 2 is a single layer of inlaid equilateral triangles. The outer triangle has a side length of 55cm, and the inner triangle has a side length of 50cm. The gap between the outer and inner triangles is painted with red fluorescent paint. The spacing of the same-color triangular indicator marking 2 satisfies the equation:

[0082] d=v×t

[0083] Where d is the interval distance, v is the vehicle speed, and t is the strobe duration comfortable for the human eye. Adjacent triangles of the same color are spaced 1.3 to 1.5 meters apart. This configuration allows drivers approaching the first exit to clearly understand their driving destination and switch to the rightmost lane first, avoiding accidents caused by subsequent lane changes. Furthermore, the combined presence of road signs and signage prompts drivers at their destination to enter the right lane as soon as possible, ensuring traffic safety.

[0084] The second corresponding exit sign 3 is a rectangle with a length × width of 600 cm × 80 cm. The second corresponding exit sign 3 is set 50 cm away from the top of the tunnel. The second corresponding exit sign 3 includes the second corresponding exit sign on the right, the second corresponding exit sign in the middle and the second corresponding exit sign on the left. The bottom of the second corresponding exit sign on the right is set with red reflective paint, the second corresponding exit sign in the middle is set with green reflective paint, and the second corresponding exit sign on the left is set with orange reflective paint. The left and right sides of the second corresponding exit sign on the right are marked with "Destination 1" and "Oval indicator line 6 of the same color", the left and right sides of the second corresponding exit sign in the middle are marked with "Destination 2" and "Same color tooth-shaped indicator line 5", and the left and right sides of the second corresponding exit sign on the left are marked with "Destination 3" and "Same color strong triangle indicator line 4". The same-color strong triangle indicator line 4 is a double-layer embedded equilateral triangle, the side length of the outer equilateral triangle is 60 cm, the side length of the outer inner equilateral triangle is 50 cm, the side length of the inner outer triangle is 30 cm, and the side length of the inner inner triangle is 24 cm. The gap between the outer equilateral triangle and the outer inner equilateral triangle is provided with a red fluorescent material, and the gap between the inner outer triangle and the inner inner triangle is provided with a red fluorescent material. The adjacent same-color strong triangle indicator lines 4 are provided to satisfy the equation:

[0085] d=v×t

[0086] Where d is the interval distance, v is the vehicle speed, and t is the strobe frequency that is comfortable for the human eye, which is 2.5 Hz to 10 Hz;

[0087] The same-color tooth-shaped indicator marking 5 is a single-layer embedded pentagonal structure with a rectangular lower part and a triangular upper part. The base length of the outer pentagon is 70 cm, the height is 40 cm, and the vertex angle is 120°. The base length of the inner pentagon is 64 cm, the height is 34 cm, and the vertex angle is 120°. The gap between the outer and inner pentagons is provided with a green silver material. The spacing between adjacent same-color tooth-shaped indicator markings 5 satisfies the equation:

[0088] d=v×t

[0089] Where d is the interval distance, v is the vehicle speed, and t is the strobe frequency that is comfortable for the human eye, 2.5 Hz to 10 Hz;

[0090] The same color elliptical indicator line 6 satisfies the equation:

[0091]

[0092] The same-color elliptical indicator markings 6 are single-layer semi-elliptical structures that retain the upper half of the x-axis, and the width is set to 6 cm. The same-color elliptical indicator markings 6 are provided with orange fluorescent material, and adjacent same-color elliptical indicator markings 6 are set to satisfy the equation:

[0093] d=v×t

[0094] Where d is the spacing, v is the vehicle speed, and t is the strobe frequency of 2.5 Hz to 10 Hz, which is comfortable for the human eye. The spacing between the three types of markings described above aligns with drivers' expectations, as they tend to speed up after entering a tunnel. For drivers in the right lane, this configuration enhances lane awareness, reminding drivers who haven't yet entered the right lane to do so quickly, thus avoiding accidents caused by subsequent lane changes. Furthermore, the combined road surface and signage provide a reinforced reminder, prompting drivers not exiting the lane to enter the two left lanes.

[0095] The third corresponding exit indicator 7 includes a left third corresponding exit indicator and a right third corresponding exit indicator. The left third corresponding exit indicator is set at the top of the entrance to the action section and is located between the left lane and the middle lane. The right third corresponding exit indicator is set at the entrance to the action section and is located at the top of the right lane. The left third corresponding exit indicator is a rectangle with a length × width of 220 cm × 80 cm and is set 50 cm away from the top of the tunnel. The left and right sides of the left half of the left third corresponding exit indicator are marked with "Destination 1" and "Oval indicator line 6 of the same color" respectively. " and the bottom is painted with orange reflective paint with a height of 20 cm. The left and right sides of the right half of the third corresponding exit sign are marked with "Destination 2" and "Same color tooth-shaped indicator line 5" respectively, and the bottom is painted with green reflective paint with a height of 20 cm; the right side third corresponding exit sign is a rectangle with a length × width of 400 cm × 80 cm and is set 50 cm away from the top of the tunnel. The left and right sides of the third corresponding exit sign are marked with "Destination 3" and "Right Arrow" respectively, and the bottom of the third corresponding exit sign on the right is painted with red reflective paint with a height of 20 cm.

[0096] The gradient corrugated belt line 8 is set 2 meters from the ground. It includes a center line, a corrugated curved mark 801, and a reflective sheet 802. The center line is 15 cm wide, the corrugated curved mark 801 is 60 cm long and 45 cm wide, and the reflective sheet 802 has a length × width of 15 cm × 15 cm. The corrugated curved mark 801 and the reflective sheet 802 are evenly spaced and set on the center line. The gradient corrugated belt line set on the right side wall of the right lane of the action section and the right side wall of the right fork lane of the notification section are both red; the gradient corrugated belt line set on the left side wall of the left lane of the action section and the left side wall of the left lane of the notification section are both orange; the gradient corrugated belt line set on the right side wall of the middle lane of the notification section is green.

[0097] Adjacent corrugated arc scales 801 satisfy the equation:

[0098] d=v×t

[0099] Where d is the interval distance, v is the vehicle speed, and t represents the comfortable strobe frequency for the human eye, ranging from 2.5 Hz to 10 Hz, with an interval distance of approximately 1.6 to 1.8 meters. This structural arrangement allows the road surface to form a reinforced reminder, with each lane assigned a specific color, reminding drivers to enter the corresponding exit lane as soon as possible, preventing sudden lane changes and enhancing lane awareness, prompting drivers to enter the appropriate lane. The corrugated beltline effectively reduces visual fatigue while providing a warning, and its rhythmic effect provides psychological comfort.

[0100] The fourth corresponding indicator 9 includes a left fourth corresponding indicator, a middle fourth corresponding indicator, and a right fourth corresponding indicator. The right fourth corresponding indicator is located above the right road, with its upper edge 50 cm from the top of the tunnel. It is a 300 cm by 80 cm rectangle. The left and right sides of the right fourth corresponding indicator are marked with "Destination 3" and "Right Arrow" respectively. The angle is set to 45 degrees from the center. The bottom of the right fourth corresponding indicator is covered with red reflective paint with a height of 20 cm. The middle fourth corresponding indicator is located above the middle lane, with its upper edge 50 cm from the top of the tunnel. It is a 200 cm by 80 cm rectangle. The left and right sides of the middle lane are marked with "Destination 2" and "Right Arrow" respectively. The angle is set to 15 degrees from the center. The bottom of the middle fourth corresponding indicator is covered with green reflective paint with a height of 20 cm. The fourth corresponding sign on the left is located above the middle lane, with the upper edge 50 cm away from the top of the tunnel. It is a rectangle of 200 cm*80 cm. "Destination 1" and "Straight Arrow" are marked on the left and right sides above the middle lane respectively. The bottom of the fourth corresponding sign on the left is painted with red reflective paint with a height of 20 cm. The inductive same-color triangle marking 11 is set on both sides of the ground line of the right fork lane. The inductive same-color triangle marking line 11 set on the right side of the ground line of the right fork lane is a single-layer embedded equilateral triangle. The side length of the outer equilateral triangle is 55 cm, and the side length of the inner equilateral triangle is 40 cm. The gap between the outer equilateral triangle and the inner equilateral triangle is provided with red fluorescent material. The inductive same-color triangle marking line 11 set on the left side of the ground line of the right fork lane is a single-layer embedded isosceles triangle. The waist length of the outer isosceles triangle is 75 cm and the base length is 42 cm. The waist length of the inner isosceles triangle is 60 cm and the base length is 27 cm. The gap between the outer isosceles triangle and the inner equilateral triangle is provided with red fluorescent material. The inductive same-color triangle marking line 11 on the left and right sides are the same in intervals and are staggered.

[0101] A single-color reflective ring 10 is located ten meters behind the fourth corresponding sign 9. It features two interlocking reflective rings, one on the left and one on the right. A single-color right-turn sign 12 includes a steel pole 1202 and a rectangular signboard 1201. Pole 1202 is made of steel tubing, and rectangular signboard 1201 is covered with green reflective film. Signboard 1201 is located above pole 1202 and is a 40cm by 80cm rectangle. Destination and right-turn arrows are located above and below. This designation allows the road surface to be combined to create a reinforced warning. Each lane is assigned a specific color, prompting drivers to quickly enter the corresponding exit lane and preventing unplanned lane changes. The single-color reflective ring 10 enhances directional awareness for drivers in the two left lanes, allowing them to promptly select the corresponding exit, providing greater visual stimulation and a strong reminder. The inductive, same-color triangle markings 11 guide drivers in turning right. Because the left and right triangles are of different sizes, the driver's steering direction will unconsciously deviate to the right, helping them turn comfortably. The same-color right-turn warning sign 12 is primarily for drivers who need to turn right immediately at a tunnel exit. The sign's color matches the ground color, prompting drivers to steer in time to avoid collisions.

[0102] The transitional corrugated straight belt line 13 is made of orange reflective film and includes a continuously arranged center line segment and arrow segments; the center line segment includes a center line and an arc mark, the arc mark includes six intervals set on the center line, the arrow segment is a plurality of evenly spaced arrows, and adjacent arrows are spaced 100 cm apart. The center line is set 90 cm from the ground, and the center line length is 200 cm and width is 15 cm. The transitional corrugated right-turn belt line is made of green reflective film and includes a continuously arranged center line segment and a long strip segment; the center line segment includes a center line and an arc block, the arc block includes six intervals set on the center line, and the arc block gradually transitions to a long strip row. The long strip segment is a plurality of spaced long strips; the first long strip is 90 cm long, and the length ratio and spacing ratio of adjacent long strips are both 1.1:1. The height of the next long strip is lowered by 10 cm until the long strip is close to the ground and disappears. The top of the induction-type hollow light-shading shed 14 is provided with an arrow-shaped hollow 1402 and a wing-shaped hollow 1401; the arrow-shaped hollow 1402 is provided on the left side of the top of the induction-type hollow light-shading shed 14, is 120 cm long and 100 cm wide, and adjacent arrow-shaped hollows 1402 are evenly spaced 120 cm apart; the arrow-shaped hollow 1402 is provided with red reflective material and red LED lights; the wing-shaped hollow 1401 is provided on the right side of the top of the induction-type hollow light-shading shed 14, the wing-shaped hollow 1401 is provided on the right side of the top of the induction-type hollow light-shading shed 14, the wing-shaped hollow is a triangle with an arc segment above 1401 and a straight segment below, the arc segment is the positive semi-axis part that satisfies the equation y^2=2px, the angle between the left and right of the straight segment is an opening of 120°, and adjacent wing-shaped hollows 1401 are evenly spaced 120 cm apart; the wing-shaped hollow 1401 is provided with green reflective material and a green LED light. During the day, when there's ample sunlight, sunlight creates corresponding patterns on the ground through the hollows, guiding drivers in the right direction. At night, corresponding LED lights are activated, similarly helping drivers identify lanes and providing guidance. This structure distinguishes drivers in the left and right lanes, instructing drivers in the left lane to continue straight ahead and drivers in the right lane to look right, prompting them to turn right in time to avoid colliding with traffic facilities in the diversion area. This not only provides a visual reminder of the driver's upcoming direction, but also contributes to energy conservation and emissions reductions. Using sunlight as a light source during the day reduces energy consumption in the tunnel.

[0103] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are protected by the present invention.

Claims

1. A sight guidance system for small-spacing continuous exits on urban underground roads, comprising a tunnel section and a sunshade section, wherein the tunnel section comprises a warning section, a warning section, an action section, and a notification section, which are divided from left to right. The notification section is connected to the sunshade section. The ground lanes of the warning section, the warning section, and the action section are divided into a left lane, a middle lane, and a right lane. The ground lanes of the notification section are provided with a left lane, a middle lane, and a right diverging lane. The system is characterized in that: A first corresponding exit sign is provided at the starting point of the warning section, a second corresponding exit sign is provided at the starting point of the warning section, a third corresponding exit indicator is provided at the starting point of the action section, a fourth corresponding indicator is provided at the entrance of the notification section, a same-color indicating reflective ring is provided in the middle section of the notification section, and a same-color right-turn prompt sign is provided on the right side of the starting point of the awning section.

2. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 1 is characterized in that: A plurality of triangular indicator markings of the same color are evenly arranged on both sides of the ground line of the right lane of the warning section; A plurality of strong triangular indicator lines of the same color are evenly arranged on both sides of the ground line of the right lane of the warning section, a plurality of tooth-shaped indicator lines of the same color are evenly arranged on both sides of the ground line of the middle lane of the warning section, and a plurality of elliptical indicator lines of the same color are evenly arranged on both sides of the ground line of the left lane of the warning section; A plurality of strong triangular indicator lines of the same color are evenly arranged on both sides of the ground line of the right lane of the action section, a gradient corrugated belt line is arranged on the right wall of the action section, a plurality of tooth-shaped indicator lines of the same color are evenly arranged on both sides of the ground line of the middle lane of the action section, and a plurality of oval indicator lines of the same color are evenly arranged on both sides of the ground line of the left lane of the action section; A plurality of inductive triangle markings of the same color are arranged on both sides of the ground line of the right fork lane of the notification section, a plurality of tooth-shaped indicator markings of the same color are evenly arranged on both sides of the ground line of the middle lane of the action section, a plurality of oval indicator markings of the same color are evenly arranged on both sides of the ground line of the left lane of the action section, and a gradient corrugated belt line is arranged on both the left and right walls of the notification section; A transitional corrugated straight belt line is provided on the left side wall of the shading shed section, a transitional corrugated right-turning belt line is provided on the right side wall of the shading shed section, and an induction-type hollow shading shed roof is provided on the top of the shading shed section.

3. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 2 is characterized in that: The first corresponding exit sign is a rectangle with a length × width of 400 cm × 200 cm. The first corresponding exit sign is set 50 cm from the top of the tunnel. A straight arrow and a right turn arrow are superimposed on each other in the middle of the first corresponding exit sign. The straight arrow is colorless and the right turn arrow is set red. The left side of the straight arrow is marked with "Destination 1" and "Destination 2", and the right side of the right turn arrow is marked with "Destination 3", "Speed Limit" and "Triangular Indicator Marking of the Same Color". The same-color triangular indicator line is a single-layer embedded equilateral triangle, the side length of the outer triangle is 55 cm, and the side length of the embedded triangle is 50 cm. The gap between the outer triangle and the embedded triangle is provided with red fluorescent paint. The same-color triangular indicator line is set at an interval that satisfies the equation: d=v×t Where d is the interval distance, v is the vehicle speed, t is the strobe time that is comfortable for the human eye, and the distance between adjacent triangle indicator lines of the same color is 1.3 to 1.5 meters; The second corresponding exit sign is a rectangle with a length×width of 600 cm×80 cm. The second corresponding exit sign is set 50 cm away from the top of the tunnel. The second corresponding exit sign includes a right second corresponding exit sign, a middle second corresponding exit sign, and a left second corresponding exit sign. The bottom of the right second corresponding exit sign is provided with red reflective paint, the middle second corresponding exit sign is provided with green reflective paint, and the left second corresponding exit sign is provided with orange reflective paint. The left and right sides of the right second corresponding exit sign are marked with "Destination 1" and "Oval indicator line of the same color", respectively. The left and right sides of the middle second corresponding exit sign are marked with "Destination 2" and "Tooth indicator line of the same color", respectively. The left and right sides of the left second corresponding exit sign are marked with "Destination 3" and "Strong triangle indicator line of the same color", respectively. The same-color strong triangle indicator line is a double-layer embedded equilateral triangle, the side length of the outer equilateral triangle is 60 cm, the side length of the outer inner equilateral triangle is 50 cm, the side length of the inner outer triangle is 30 cm, and the side length of the inner inner triangle is 24 cm. The gap between the outer equilateral triangle and the outer inner equilateral triangle is provided with a red fluorescent material, and the gap between the inner outer triangle and the inner inner triangle is provided with a red fluorescent material. The adjacent same-color strong triangle indicator lines are provided to satisfy the equation: d=v×t Where d is the separation distance, v is the vehicle speed, and t is the strobe time that is comfortable for the human eye; The same-color tooth-shaped indicator marking line is a single-layer embedded pentagonal structure with a rectangular lower part and a triangular upper part. The base length of the outer pentagon is 70 cm, the height is 40 cm, and the vertex angle is 120°. The base length of the inner pentagon is 64 cm, the height is 34 cm, and the vertex angle is 120°. The gap between the outer and inner pentagons is provided with a green silver material. The spacing between adjacent same-color tooth-shaped indicator marking lines satisfies the equation: d=v×t Where d is the separation distance, v is the vehicle speed, and t is the strobe time that is comfortable for the human eye; The same color elliptical indicator line satisfies the equation: The same-color elliptical indicator markings are single-layer semi-elliptical structures that retain the upper half of the x-axis, and the width is set to 6 cm; the same-color elliptical indicator markings are provided with orange fluorescent material, and the adjacent same-color elliptical indicator markings are set to satisfy the equation: d=v×t Where d is the separation distance, v is the vehicle speed, and t is the strobe time that is comfortable for the human eye; The third corresponding exit indicator includes a left third corresponding exit indicator and a right third corresponding exit indicator. The left third corresponding exit indicator is set at the top of the entrance of the action section and is located in the middle of the left lane and the middle lane. The right third corresponding exit indicator is set at the entrance of the action section and is located at the top of the right lane. The left third corresponding exit indicator is a rectangle with a length × width of 220cm × 80cm and is set at 50cm from the top of the tunnel. The left and right sides of the left half of the left third corresponding exit indicator are marked with "Destination 1" and "Oval indicator of the same color" respectively. The third corresponding exit sign on the left is a rectangle with a length × width of 400 cm × 80 cm and is set 50 cm away from the top of the tunnel. The left and right sides of the third corresponding exit sign are marked with "Destination 3" and "Right Arrow" respectively, and the bottom of the third corresponding exit sign on the right is painted with red reflective paint with a height of 20 cm.

4. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 2 is characterized in that: The gradient corrugated belt line is set 2m from the ground. The gradient corrugated belt line includes a center line, a corrugated arc mark and a reflective sheet. The center line width is 15cm, the corrugated arc mark is 60cm long and 45cm wide, and the length and width of the reflective sheet are 15cm*15cm. The corrugated arc mark and the reflective sheet are evenly spaced and arranged on the center line. The gradient corrugated belt line provided on the right side wall of the right lane of the action section and the gradient corrugated belt line provided on the right side wall of the right diverging lane of the notification section are both red; The gradient corrugated belt line provided on the left side wall of the left lane of the action section and the gradient corrugated belt line provided on the left side wall of the left lane of the notification section are both orange; The gradient corrugated belt line provided on the right side wall of the middle lane of the notification section is green; The adjacent corrugated arc scales satisfy the equation: d=v×t Among them, d is the interval distance, v is the vehicle speed, and t is the strobe time that is comfortable for the human eye.

5. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 1 is characterized in that: The fourth corresponding indicator includes a left fourth corresponding indicator, a middle fourth corresponding indicator and a right fourth corresponding indicator; The fourth right-side corresponding indicator is located above the right road, with its upper edge 50 cm from the top of the tunnel. It is a rectangle measuring 300 cm by 80 cm. The left and right sides of the fourth right-side corresponding indicator are marked with "Destination 3" and "Right Arrow" respectively. The angle is set to deflect 45 degrees from the middle. The bottom of the fourth right-side corresponding indicator is covered with red reflective paint at a height of 20 cm. The fourth middle sign is located above the middle lane, with its upper edge 50 cm from the tunnel top. It is a 200 cm x 80 cm rectangle. "Destination 2" and "Right Arrow" are marked on the left and right sides of the middle lane, respectively. The angle is set to deflect 15 degrees from the middle. The bottom of the fourth middle sign is painted with green reflective paint at a height of 20 cm. The fourth corresponding indicator on the left is located above the middle lane, with the upper edge 50 cm away from the top of the tunnel. It is a rectangle of 200 cm*80 cm. "Destination 1" and "Straight Arrow" are marked on the left and right sides above the middle lane respectively. The bottom of the fourth corresponding indicator on the left is covered with red reflective paint with a height of 20 cm.

6. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 1 is characterized in that: The inductive same-color triangle markings are set on both sides of the ground line of the right fork lane. The inductive same-color triangle marking line set on the right side of the ground line of the right fork lane is a single-layer embedded equilateral triangle, the side length of the outer equilateral triangle is 55 cm, and the side length of the inner equilateral triangle is 40 cm. The gap between the outer equilateral triangle and the inner equilateral triangle is provided with red fluorescent material. The inductive same-color triangle marking line set on the left side of the ground line of the right fork lane is a single-layer embedded isosceles triangle, the waist length of the outer isosceles triangle is 75 cm and the base length is 42 cm. The waist length of the inner isosceles triangle is 60 cm and the base length is 27 cm. The gap between the outer isosceles triangle and the inner equilateral triangle is provided with red fluorescent material. The inductive same-color triangle markings on the left and right sides have the same intervals and are staggered.

7. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 1 is characterized in that: The same-color indicator reflective ring is set ten meters behind the fourth corresponding indicator mark. The same-color indicator reflective ring is a color-matching reflective ring connected in the middle, with an orange reflective film on the left and a green reflective film on the right; The same-color right-turn sign includes a pole and a rectangular signboard. The pole is a steel pipe. The rectangular signboard is provided with a green reflective film. The rectangular signboard is arranged on the upper part of the pole. The rectangular signboard is a rectangle with a length of 40 cm and a width of 80 cm. The rectangular signboard is provided with "destination" and "right-turn arrows" on the upper and lower parts.

8. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 2 is characterized in that: The transitional corrugated straight belt line is an orange reflective film and includes a continuously arranged center line segment and an arrow segment; the center line segment includes a center line and an arc mark, the arc mark includes six intervals arranged on the center line, the arrow segment is a plurality of evenly spaced arrows, and adjacent arrows are spaced 100 cm apart. The center line is set at 90 cm from the ground, and the length of the center line is 200 cm and the width is 15 cm.

9. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 7 is characterized in that: The transition corrugated right-turn belt line is a green reflective film and includes a continuously arranged center line segment and a long strip segment; the center line segment includes a center line and an arc block, the arc block includes six intervals arranged on the center line, the arc block gradually transitions to a long strip row, and the long strip segment is a plurality of intervals arranged long strips; the length of the first long strip is 90 cm, and the length ratio and spacing ratio of adjacent long strips are both 1.1:1, and the height of the next long strip is lowered by 10 cm until the long strip is close to the ground and disappears.

10. The sight line guidance system for small-spacing continuous exits in urban underground roads according to claim 1 is characterized in that: The top of the induction type hollow awning is provided with arrow-shaped hollows and wing-shaped hollows; The arrow-shaped hollow is set on the left side of the top of the induction hollow sunshade shed, the length of the arrow-shaped hollow is 120 cm, the width is 100 cm, and the adjacent arrow-shaped hollows are evenly spaced 120 cm apart; the arrow-shaped hollow is provided with red reflective material and a red LED light; The wing-shaped hollow is arranged on the right side of the top of the induced hollow sunshade shed. The wing-shaped hollow is a triangle with an arc segment on the top and a straight segment on the bottom. The arc segment is the positive semi-axis part that satisfies the equation y^2=2px. The angle between the left and right of the straight segment is 120°. The adjacent wing-shaped hollows are evenly spaced at a distance of 120 cm. The wing-shaped hollow is provided with green reflective material and green LED lights.

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