Intelligent safety guidance system for level intersections considering the blind spot of truck inner wheel difference

Abstract

The present invention relates to an intelligent safety guidance system for a flat intersection that takes into account a truck's inner wheel difference blind spot, comprising a truck's inner wheel difference blind spot, a green non-motor vehicle crossing lane, a safety island, a sector-shaped curb slope, a guide line, a green non-motor vehicle lane, a one-way brightened protruding road sign, a road surface pressure sensing device, a flexible warning post, a positioning strip, and a warning strip; the truck's inner wheel difference blind spot and the safety island are arranged at a corner area of ​​a flat road intersection, the truck's inner wheel difference blind spot is arranged outside, and the safety island is arranged inside; the positioning strip and the warning strip are arranged inside the curb slope of the sector-shaped curb slope; a double-layer convex mirror and a rigid warning post are arranged on the safety island, the double-layer convex mirror is arranged at both ends of the safety island, and the rigid warning post is arranged in the middle section of the safety island. The present invention can help motor vehicle drivers, non-motor vehicle drivers, and pedestrians identify dangerous areas, reduce the risk of streamline conflict, and ensure traffic safety and smooth operation at urban road intersections.

Description

Technical Field

[0001] The present invention relates to the technical field of urban traffic safety, and more particularly to an intelligent safety induction system for a plane intersection taking into account a blind spot of the inner wheel difference of a truck. Background Art

[0002] With the acceleration of urbanization and the rise in car ownership, the number of accidents caused by collisions between people and vehicles on urban roads is increasing. Intersections are a frequent site of traffic accidents. Large trucks, due to blind spots and "inner wheel gaps," are highly susceptible to colliding with vehicles on the right or pedestrians, even running over them when turning right, resulting in serious accidents. To effectively prevent and reduce accidents caused by inner wheel gaps and blind spots, many cities around the world have designed "right-turn danger zones" or "green non-motorized vehicle lanes" at intersections. These designations serve to warn pedestrians of dangerous areas, help pedestrians identify their right of way, and reduce traffic risks at intersections. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an intelligent safety guidance system for level intersections that takes into account the blind spot of the inner wheel difference of trucks. The system can help road users clarify their own right of way, identify designated dangerous areas, and actively avoid them, thereby reducing the risk of right-turn conflicts and ensuring traffic safety within the scope of urban road level intersections.

[0004] The technical solution adopted by the present invention to solve the technical problem is to construct an intelligent safety guidance system for a flat intersection taking into account the inner wheel difference blind spot of a truck, including the inner wheel difference blind spot of a truck, a green non-motor vehicle crossing lane, a pedestrian crossing lane, a safety island, a fan-shaped curb slope, a guide line, a green non-motor vehicle lane, a one-way brightening protruding road sign, a road surface pressure sensor, a flexible warning column, a positioning belt and a warning belt;

[0005] The truck inner wheel difference blind spot, the safety island and the green non-motor vehicle crossing lane are arranged from the inside to the outside to form a road plane intersection corner area, the pedestrian crossing lane is arranged outside the green non-motor vehicle crossing lane, the guide line is arranged on the pedestrian crossing lane, the fan-shaped curb slope is arranged at the corner of the pedestrian crossing lane, the green non-motor vehicle lane is arranged next to the motor vehicle lane, the one-way brightening type protruding road sign is arranged at the outer edge of the truck inner wheel difference blind spot and the separation of the green non-motor vehicle lane and the motor vehicle lane, the road surface pressure sensing device is arranged in front of the motor vehicle lane stop line, the flexible warning column is arranged between the green non-motor vehicle crossing lane and the pedestrian crossing lane, and between the pedestrian crossing lane and the green non-motor vehicle lane; the positioning strip and the warning strip are arranged inside the curb slope of the fan-shaped curb slope;

[0006] Double-layer convex mirrors and rigid warning columns are arranged on the safety island, the double-layer convex mirrors are arranged at both ends of the safety island, and the rigid warning column is arranged in the middle section of the safety island.

[0007] According to the above scheme, the inner wheel difference blind spot of the truck includes the front wheel trajectory marking line, the rear wheel trajectory marking line and the radial marking line. The front wheel trajectory marking line is an outer arc line, the rear wheel trajectory marking line is an inner arc line, the radial marking line is arranged between the outer arc line and the inner arc line, and a horseshoe-shaped protruding road sign is arranged on the radial marking line.

[0008] According to the above scheme, the one-way brightening type raised road sign is a tempered glass raised road sign, and the interval distance between the one-way brightening type raised road sign arranged on the dividing line between the motor vehicle lane and the green non-motor vehicle lane is 6m to 15m; the one-way brightening type raised road sign arranged on the outside of the front wheel track marking line in the truck is arranged in an arc shape and the interval arc is 27° to 30°; the horseshoe-shaped raised road sign shell is cast by cast aluminum or aluminum alloy, and the horseshoe-shaped raised road sign is arranged along the radial marking line and the interval distance is 20cm to 25cm.

[0009] According to the above scheme, yellow and black vertical markings are set on the island side of the safety island, the blind spot side of the safety island is an arc with a radius of 40° to 50°, and the non-motorized crossing side of the safety island is an arc with a radius of 90° to 95°.

[0010] According to the above scheme, the double-layer convex mirror includes a pole, a low-position convex mirror and a high-position convex mirror. The high-position convex mirror is arranged at the top of the pole, the low-position convex mirror is arranged in the middle and upper part of the pole, and the pole body of the pole is painted with red and white paint.

[0011] According to the above scheme, the rigid warning column includes a column and an LED warning light. The LED warning light is arranged on the top of the column. The column body is painted with yellow and white paint. The LED warning light is red and is controlled by a road pressure sensor.

[0012] According to the above scheme, the fan radius of the fan-shaped curb slope is 4 to 5 meters, the ratio of the vertical height to the horizontal width of the fan-shaped curb slope is less than 1:12, and the ramp of the fan-shaped curb slope must be aligned with the pedestrian crossing; the positioning belt is set inside the fan-shaped curb slope, and the position of the positioning belt is aligned with the position of the guide line; the warning belt is set near the corner of the pedestrian walkway.

[0013] According to the above solution, the guide wire is set in the pedestrian crossing near the lane side, and the guide wire is 25cm to 35cm away from the edge of the pedestrian crossing.

[0014] The intelligent safety guidance system for level intersections that takes into account the blind spot of the inner wheel difference of trucks according to the present invention has the following beneficial effects:

[0015] 1. This invention solves the problem of inner wheel difference when trucks turn at grade intersections. It integrates road markings, raised road signs, and slopes to effectively outline the dangerous area of ​​inner wheel difference of trucks, enhance the perception of this area by drivers and pedestrians, and ensure the traffic safety of both parties.

[0016] 2. This invention solves the problem of blind spots when a vehicle turns. By using traffic islands, double-layer convex mirrors and rigid warning columns, the driver's blind spots are filled and non-motor vehicle drivers and pedestrians are warned, thereby improving traffic safety and reducing traffic accidents.

[0017] 3. Based on the principles of "avoidance effect" and "forced behavior," this invention installs flexible warning posts between the green non-motorized vehicle crossing and the pedestrian crossing to ensure that non-motorized vehicle drivers and pedestrians clearly understand their right of way, reducing the risk of conflict between their lanes and ensuring the safety of both parties. Furthermore, by installing flexible warning posts between the green non-motorized vehicle lane and the pedestrian crossing, non-motorized vehicle drivers are forced to cross the street or turn on the right side, reducing the risk of non-motorized vehicle drivers crossing the street through the blind spot of the inner wheel difference of trucks.

[0018] 4. The present invention provides warning and guidance information to the visually impaired by setting up fan-shaped curb slopes, positioning strips, warning strips, and guide lines, so that they can clearly understand the surrounding environment and their own position, and help them complete the street crossing in a stable, smooth and safe manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0020] Figure 1 This is a perspective view of an intelligent safety guidance system for a flat intersection that takes into account the blind spot of the inner wheel difference of a truck according to the present invention;

[0021] Figure 2 This is a top view of an intelligent safety guidance system for a planar intersection taking into account the blind spot of the inner wheel difference of a truck according to the present invention;

[0022] Figure 3 This is a top view of the blind area of ​​the inner wheel differential of a truck according to the present invention;

[0023] Figure 4 This is a cross-sectional view of the blind area of ​​the inner wheel differential of a truck according to the present invention;

[0024] Figure 5 This is a top view of a one-way brightening raised road sign of the present invention;

[0025] Figure 6 This is a schematic diagram of a horseshoe-shaped protruding road sign of the present invention;

[0026] Figure 7 This is a top view of the safety island of the present invention;

[0027] Figure 8 This is a front view of the rigid warning column of the present invention;

[0028] Figure 9 It is a side view of the double-layer convex mirror of the present invention;

[0029] Figure 10 This is a front view of the flexible warning column of the present invention;

[0030] Figure 11 It is a top view of the warning tape and positioning tape of the present invention. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figure 1-11 As shown, the intelligent safety guidance system for grade intersections that considers the inner wheel difference blind spot of trucks of the present invention includes the inner wheel difference blind spot 1, a green non-motorized vehicle crossing 8, a pedestrian crossing 16, a safety island 4, a sector-shaped curb ramp 10, a guide line 13, a green non-motorized vehicle lane 14, a one-way brightened raised road sign 2, a road surface pressure sensor 7, a flexible warning post 9, a positioning strip 11, and a warning strip 12. Safety island 4 is provided with a double-layer convex mirror 5 and a rigid warning post 6. The double-layer convex mirror 5 is located at both ends of safety island 4, and the rigid warning post 6 is located in the middle of safety island 4.

[0033] The truck inner wheel difference blind spot 1, the safety island 4 and the green non-motor vehicle crossing 8 are arranged from the inside to the outside to form a road plane intersection corner area, the green non-motor vehicle crossing 8 is arranged between the pedestrian crossing 16 and the safety island 4, the guide line 13 is arranged on the pedestrian crossing 16, the fan-shaped curb slope 10 is arranged at the corner of the pedestrian crossing 16, the green non-motor vehicle lane 14 is arranged next to the motor vehicle lane 15, the one-way brightening type protruding road signs 2 are respectively arranged at the outer edge of the truck inner wheel difference blind spot 1 and the dividing point of the green non-motor vehicle lane 14, the road surface pressure sensing device 7 is arranged in front of the motor vehicle lane stop line, the flexible warning column 9 is arranged between the green non-motor vehicle crossing 8 and the pedestrian crossing 16, and between the pedestrian crossing and the green non-motor vehicle lane 14; the positioning belt 11 and the warning belt 12 are arranged in the curb slope of the fan-shaped curb slope 10.

[0034] In a preferred embodiment of the present invention, the inner wheel difference blind spot 1 of the truck is composed of the front wheel trajectory marking line 18, the rear wheel trajectory marking line 19 and three radial marking lines 20 arranged inside the truck. The inner wheel difference blind spot 1 of the truck has a certain slope and is in the shape of a speed reduction hill with a height of 0.05m to 0.1m. The slope ratio of the slope section is 1:20 to 1:10. The radius of the front wheel trajectory marking line 18 of the truck is 8m, and the central angle corresponding to the arc is 110° to 120°. The radius of the rear wheel trajectory marking line 19 of the truck is 12m, and the central angle corresponding to the arc is 50° to 60°. The extension lines of the radial marking lines 20 all pass through the center of the rear wheel trajectory marking line 19 of the truck, and the interval arc is 15°. One-way brightening raised road signs 2 are tempered glass raised road signs, no more than 2.5 cm in height and 10-12 cm in diameter. One-way brightening raised road signs 2 are placed at intervals of 6-15 m on the dividing line between the motor vehicle lane 15 and the green non-motor vehicle lane 14. One-way brightening raised road signs 2 placed outside the inner front wheel track marking 18 of trucks are arranged in an arc with an arc interval of 27°-30°. The reflective brightness of the one-way brightening raised road signs 2 in the driver's direction of travel is 1.5-2 times that of the other side. The outer shell of the horseshoe-shaped raised road sign 3 is made of cast aluminum or aluminum alloy, with a side length of about 12 cm and a height of about 4 cm. A mixture of epoxy resin and sand is poured inside to provide compressive strength. Acrylic plastic reflective sheets or glass bead reflective sheets are embedded in the front and back sides as reflective components. The horseshoe-shaped raised road sign 3 is arranged along three radial marking lines 20, with 4 to 5 horseshoe-shaped raised road sign 3 set on each marking line. The interval between the horseshoe-shaped raised road sign 3 is 20 cm to 25 cm.

[0035] In a preferred embodiment of the present invention, the height of the safety island 4 is 0.25m, the island side of the safety island 4 is painted with yellow and black facade markings, the width is 30cm, the blind spot side 21 of the safety island 4 is an arc with a radius of 12m and an arc of 40° to 50°; the green non-motorized crossing side 22 of the safety island is an arc with a radius of 6m and an arc of 90° to 95°, and the radius of the chamfered corners on both sides of the safety island is 0.7m. The double-layer convex mirror 5 consists of a red-and-white painted pole 23, a low-position convex mirror 24, and a high-position convex mirror 25. The pole 23 is 2 meters tall and has a radius of 4 to 5 centimeters. The convex radii of the low-position convex mirror 24 and the high-position convex mirror 25 are 0.5 meters. The low-position convex mirror 24 is mounted 1.5 meters from the pole 23, and the high-position convex mirror 25 is mounted 2 meters from the pole 23. The centerline of the mirrors forms an angle of 30 to 40 degrees with the horizontal. The centerlines of the low-position convex mirror 24 and the high-position convex mirror 25 form angles of 30 and 60 degrees with the centerline of the motor vehicle lane, respectively. The rigid warning post 6 is 1.5 meters tall and has a radius of 5 to 8 centimeters. It consists of a yellow and white pole 26 and a red LED warning light 27. Five rigid warning posts 6 are arranged in an arc on the safety island 4, with a radius of 13 meters, a central angle of 25° to 30°, and intervals of 15° to 20°. The red LED warning light 27 is switched on and off by a road pressure sensor 7. The belt-type road pressure sensor 7 is 60 to 80 centimeters wide and 3.75 meters long. It uses a vibrating wire pressure sensor. For vehicles weighing over 2 tons, the road pressure sensor 7 controls the red LED warning light 27.

[0036] In a preferred embodiment of the present invention, the green non-motor vehicle crossing 8 is 1.5m wide, with a rounded corner radius of 6m and an angle of 90° at the turning point. The edge of the green non-motor vehicle crossing 8 is separated by a white dotted line, which is 40cm long and 20cm wide, and the white dotted lines are arranged at intervals of 60cm. The green non-motor vehicle lane 14 is 2.5m wide, and the width becomes 1m after the vehicle stop line. Flexible warning posts 9 are set between the green non-motor vehicle crossing and the pedestrian crossing, and between the pedestrian crossing and the green non-motor vehicle lane. The flexible warning posts 9 are painted green and white, with a height of 50 to 70cm and a radius of 8 to 10cm. The flexible warning posts 9 are arranged at intervals of 70cm, with three set on each side.

[0037] In a preferred embodiment of the present invention, a fan-shaped curb slope 10 is set at the corner of the pedestrian walkway, with a fan radius of 4 to 5 meters, a slope vertical height to horizontal width ratio of less than 1:12, and the slope of the fan-shaped curb slope 10 must be aligned with the pedestrian crossing. A positioning strip 11 is set inside the fan-shaped curb slope 10 and is set with a guide brick with a width of 50 cm and a length of 60 cm. The position of the positioning strip 11 is aligned with the position of the guide line 13. The positioning strip 11 is a warning guide brick with a yellow color and a dot protrusion with a radius of 2.5 cm and a protrusion height of 4 mm to 5 mm. The warning strip 12 is set near the corner of the pedestrian walkway and is set with a guide brick with a width of 60 cm and a length of 1.5 m. The warning strip 12 is a yellow warning guide brick with a protruding height of 4mm to 5mm. The guidance device between the warning strip 12 and the positioning strip 11 is a guide brick with five straight protruding lines with a protruding height of 4mm to 5mm. The guide line 13 is set on the side of the pedestrian crossing near the lane, 30cm from the edge of the pedestrian crossing. It consists of three parallel white solid lines, 5cm wide, 5cm apart, and 0.4 to 0.5cm thick. The length is consistent with the width of the road section.

[0038] 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. An intelligent safety guidance system for level intersections that takes into account the blind spot of the inner wheel difference of trucks, characterized by: Including truck inner wheel difference blind spot, green non-motor vehicle crossing, pedestrian crossing, safety island, fan-shaped curb slope, guide lane, green non-motor vehicle lane, one-way brightening type raised road sign, road pressure sensor device, flexible warning column, positioning tape and warning tape; The truck inner wheel difference blind spot, the safety island and the green non-motor vehicle crossing lane are arranged from the inside to the outside to form a road plane intersection corner area, the pedestrian crossing lane is arranged outside the green non-motor vehicle crossing lane, the guide line is arranged on the pedestrian crossing lane, the fan-shaped curb slope is arranged at the corner of the pedestrian crossing lane, the green non-motor vehicle lane is arranged next to the motor vehicle lane, the one-way brightening type protruding road sign is arranged at the outer edge of the truck inner wheel difference blind spot and the separation of the green non-motor vehicle lane and the motor vehicle lane, the road surface pressure sensing device is arranged in front of the motor vehicle lane stop line, the flexible warning column is arranged between the green non-motor vehicle crossing lane and the pedestrian crossing lane, and between the pedestrian crossing lane and the green non-motor vehicle lane; the positioning strip and the warning strip are arranged inside the curb slope of the fan-shaped curb slope; Double-layer convex mirrors and rigid warning columns are arranged on the safety island, the double-layer convex mirrors are arranged at both ends of the safety island, and the rigid warning columns are arranged in the middle section of the safety island.

2. The intelligent safety guidance system for level intersections taking into account the blind spot of the inner wheel difference of trucks according to claim 1 is characterized in that: The inner wheel difference blind spot of the truck includes the front wheel trajectory marking line, the rear wheel trajectory marking line and radial marking lines inside the truck. The front wheel trajectory marking line inside the truck is an outer arc line, the rear wheel trajectory marking line inside the truck is an inner arc line, the radial marking line is arranged between the outer arc line and the inner arc line, and a horseshoe-shaped protruding road sign is arranged on the radial marking line.

3. The intelligent safety guidance system for level intersections taking into account the blind spot of the inner wheel difference of trucks according to claim 2 is characterized in that: The one-way brightening type raised road sign is a tempered glass raised road sign. The interval distance between the one-way brightening type raised road sign arranged on the dividing line between the motor vehicle lane and the green non-motor vehicle lane is 6m to 15m; the one-way brightening type raised road sign arranged on the outside of the front wheel track marking line in the truck is arranged in an arc shape and the interval arc is 27° to 30°; the horseshoe-shaped raised road sign shell is cast from cast aluminum or aluminum alloy, and the horseshoe-shaped raised road sign is arranged along the radial marking line and the interval distance is 20cm to 25cm.

4. The intelligent safety guidance system for level intersections taking into account the blind spot of the inner wheel difference of trucks according to claim 1 is characterized in that: The island side of the safety island is provided with yellow and black vertical markings, the blind spot side of the safety island is an arc with a radius of 40° to 50°, and the non-motorized crossing side of the safety island is an arc with a radius of 90° to 95°.

5. The intelligent safety guidance system for level intersections taking into account the blind spot of the inner wheel difference of trucks according to claim 1 is characterized in that: The double-layer convex mirror includes a pole, a low-position convex mirror and a high-position convex mirror. The high-position convex mirror is arranged at the top of the pole, and the low-position convex mirror is arranged at the middle and upper part of the pole. The pole body is painted with red and white paint.

6. The intelligent safety guidance system for level intersections taking into account the blind spot of the inner wheel difference of trucks according to claim 1 is characterized in that: The rigid warning column includes a column and an LED warning light. The LED warning light is arranged on the top of the column. The column body is painted with yellow and white paint. The LED warning light is red and is controlled by a road pressure sensor.

7. The intelligent safety guidance system for level intersections taking into account the blind spot of the inner wheel difference of trucks according to claim 1 is characterized in that: The fan radius of the fan-shaped curb slope is 4 to 5 meters, the ratio of the vertical height to the horizontal width of the fan-shaped curb slope is less than 1:12, and the ramp of the fan-shaped curb slope must be aligned with the pedestrian crossing; the positioning belt is set inside the fan-shaped curb slope, and the position of the positioning belt is aligned with the position of the guide line; the warning belt is set near the corner of the pedestrian walkway.

8. The intelligent safety guidance system for level intersections taking into account the blind spot of the inner wheel difference of trucks according to claim 1 is characterized by: The guide wire is arranged on one side of the pedestrian crossing close to the lane, and the guide wire is 25 cm to 35 cm away from the edge of the pedestrian crossing.

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