CN117894209A - Multi-entry underpass tunnel color vision and intelligent warning safety guiding system - Google Patents
Multi-entry underpass tunnel color vision and intelligent warning safety guiding system Download PDFInfo
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Abstract
The invention belongs to the technical field of traffic control systems, and particularly relates to a multi-entry underpass tunnel color vision and intelligent warning safety guiding system, which comprises the following components: 5 sections arranged on a main road and a secondary road of the multi-entry underpass tunnel, comprising a downhill section, a transition section, a confluence section, an inner section and a secondary section; the color vision-induced safety guiding subsystem is arranged at each section of the multi-entrance underpass tunnel; the intelligent warning type safety guiding subsystem comprises a road side sensor arranged on the main road, an intelligent warning information board linked with the secondary road, and an intelligent warning information board linked with the road side sensor arranged on the secondary road. According to the invention, in the passing process of the main road and the secondary road of the multi-entrance underpass tunnel, color progression, visual induction and coming reminding can be carried out on a driver, so that the reaction capability of the driver is improved, and the traffic safety of the multi-entrance underpass tunnel is ensured.
Description
Technical Field
The invention belongs to the technical field of traffic control systems, and particularly relates to a multi-entry underpass tunnel color vision and intelligent warning safety guiding system.
Background
The multi-entrance underpass tunnel is an important component of modern urban traffic construction, and the converging area of the multi-entrance underpass tunnel is a tunnel accident high-incidence area, and accidents are frequent because the speed of the vehicle is relatively high. When a vehicle runs before a tunnel entrance door is penetrated downwards, a driver easily generates problems such as misjudgment of a vehicle distance, lane departure, overspeed running and the like due to gradient change, poor light, monotonous reference system and the like, and traffic accidents are extremely easy to induce. When a vehicle enters a tunnel junction region, a traffic conflict region is formed due to the interweaving process of the vehicle in the tunnel junction region, and the vehicle operation characteristic change is caused in the junction process, so that the accident risk of vehicle collision is increased.
At present, the tunnel traffic safety guiding design is mainly focused on an entrance and exit section of a single-port tunnel, and the safety guiding and safety design for a downward-penetrating tunnel with a plurality of entrances of a converging section are relatively few. Therefore, the design of the color vision and intelligent warning safety guiding system is carried out in the multi-entrance underpass tunnel, and the method has important significance for enhancing the speed grasping capability, improving the monotone driving environment of the tunnel, reducing the traffic accidents in the confluence area of the tunnel and ensuring the driving safety.
Disclosure of Invention
According to the defects in the prior art, the invention provides the multi-entrance underpass tunnel color vision and intelligent warning safety guiding system, which can carry out color progression, vision induction and coming reminding on a driver in the passing process of a main road and a secondary road of the multi-entrance underpass tunnel, is beneficial to improving the reaction capability of the driver and ensures the traffic safety of the multi-entrance underpass tunnel.
In order to achieve the above purpose, the multi-entry underpass tunnel color vision and intelligent warning safety guiding system of the invention comprises:
5 sections of main road and secondary road of multi-entrance underpass tunnel including downhill section L 1 Transition section L 2 Confluence section L 3 Inner section L 4 And minor road segment L 5 ；
Color vision-induced safety guiding subsystem arranged on each section of multi-entrance underpass tunnel and comprising a downhill section L arranged on the multi-entrance underpass tunnel 1 The device comprises a vertical progressive guide bar of a side wall, transverse color progressive guide lines arranged on the side walls of a main path and a secondary path of a multi-entrance underpass tunnel, and visual progressive induction arcs arranged on the inner walls of the main path and the secondary path of the multi-entrance underpass tunnel;
wherein, downhill segment L 1 The vertical progressive guide strip of the side wall carries out visual induction on a driver so as to reduce the downhill section L of the tunnel 1 The vehicle running speed reminds a driver of the impending entering a tunnel; from transition L 2 Or minor road section L 5 Travel to the inner section L 4 During the process, the transverse color progressive guide line of the tunnel side wall and the visual progressive induction arc of the tunnel inner wall carry out color progressive and visual induction, so that a driver is reminded of being in the confluence section L 3 Taking the approach of the secondary road or the main road, and taking the measures of decelerating and changing the road in advance;
the intelligent warning type safety guiding subsystem is arranged on a main road and a secondary road of a multi-entrance underpass tunnel and comprises a road side sensor arranged on the main road, an intelligent warning information board linked with the secondary road, and an intelligent warning information board linked with the road side sensor arranged on the secondary road and the main road;
the intelligent warning information card of the secondary road is used for displaying the information of the coming vehicles of the primary road detected by the road side sensor of the primary road.
The arrangement mode of the 5 sections is as follows:
downhill segment L 1 Length of l 1 ，，l s For the parking sight distance of the tunnel, the unit m and theta are the downhill section L 1 In degrees, r is a correction factor, < ->Alpha is a constant and represents the influence degree of gradient on the vehicle performance, the value range is 0.1-0.3, and the downhill section L 1 The end point of the tunnel is the entrance portal of the main tunnel;
transition section L 2 The junction triangle wall of the main road and the secondary road disappears from the entrance portal of the main road of the tunnel;
confluence section L 3 From transition section L 2 The width of the merging lane from the end point to the secondary road is 0;
inner section L 4 At the confluence section L 3 Thereafter, go toThe tunnel extends inside;
minor road segment L 5 And the junction triangle wall between the main road and the secondary road is disappeared from the entrance portal of the secondary road of the tunnel.
The vertical progressive guide strip comprises a descending slope section L which is sequentially arranged along the driving direction 1 The heights of the guide strips 1, 2 and 3 on the side walls at two sides are 1/4H, 1/2H and 3/4H respectively, H is the height of the tunnel, and the width of the vertical progressive guide strip is the same as the height of the tunnel repair channel.
The intervals among the guide strips 1, 2 and 3 are obtained according to the aesthetic golden ratio:
，n=2，3；/>；
wherein D is 1 Is a downhill segment L 1 The distance from the starting point to the guide strip 1 is in m; d (D) 2 The distance between the guide strip 1 and the guide strip 2 is in m; d (D) 3 The distance between the guide bars 2 and 3 is in m.
The transverse color progressive guide line adopts color gradual change setting and width gradual change setting, wherein:
the color gradient is set to be in the transition section L 2 The side wall is set to be red gradually changed; in the secondary road section L 5 The side wall is set to be green and gradually changed; at the confluence section L 3 The left side wall (the left side wall and the right side wall are the left side and the right side in the driving direction and the same applies to the following) is set to be in red and blue gradual change, and the right side wall is set to be in green and blue gradual change; inner section L 4 The side wall is set to be blue gradual change; the color gradual change is along the driving direction, and the color is changed from dark to light;
the width is gradually changed to be at the transition section L 2 From the starting point width S 1 Gradual change to end point width S 2 The method comprises the steps of carrying out a first treatment on the surface of the At the confluence section L 3 From the starting point width S 2 Gradual change to end point width S 2 The method comprises the steps of carrying out a first treatment on the surface of the Inner section L 4 From the starting point width S 2 Gradual change to end point width S 1 The method comprises the steps of carrying out a first treatment on the surface of the In the secondary road section L 5 From the starting point width S 1 Gradual change to end point width S 2 ；
Due to the confluence section L 3 Both the left side wall and the right side wall of (1) comprise two color gradations, so that the merging section L 3 Two guide lines respectively corresponding to right triangle structures with different gradually changed colors are arranged in the box, and the guide lines of the two right triangles are combined into a square, so that the width of the starting point is the same as that of the ending point;
in the setting of the gradual change of the width,；S i gradually changing a widening value for any point in the gradual change section by a unit m; k is the gradual change rate of any point, +.>；L x The distance between any point and the gradual change starting point is in unit m; the ratio of the total width of the gradual change to the total length of the gradual change is not more than 1/100; s is S 1 The value range of (2) is 0.08-0.12m; s is S 2 The range of the value of (2) is 0.3-0.35m.
The visual progressive induction arc comprises a transition section L which is sequentially arranged along the driving direction 2 An induced arc 1, an induced arc 2 and an induced arc 3 on the left side wall; sequentially arranged on the secondary road section L along the driving direction 5 An induced arc 4, an induced arc 5 and an induced arc 6 on the right side wall; sequentially arranged at the confluence section L along the driving direction 3 And an inner section L 4 Induction arc 7, induction arc 8, induction arc 9, induction arc 10; the bottom ends of the induction arcs 1 and 7 are flush with the lower edge of the tunnel entrance portal side wall.
The width of the visual progressive induction arc is the same as the height of the tunnel repair channel, and the interval between the induction arcs is obtained according to the aesthetic golden ratio;
the induced arcs 1, 2, 3, 7, 8, 9 and 10 are progressive visual induced arcs of the main road, which are respectively 1/6 left side wall arcs, 1/3 left side wall arcs, 1/2 left side wall arcs, full arcs, 3/4 hole top arcs, 1/2 hole top arcs and 1/4 hole top arcs progressive in sequence along the driving direction from the entrance portal of the main road of the tunnel; the induced arcs 4, 5 and 6 are progressive visual induced arcs of the secondary road, and are respectively 1/6 right side wall arcs, 1/3 right side wall arcs and 1/2 right side wall arcs which are progressive in sequence along the driving direction from the entrance portal of the secondary road of the tunnel.
The intelligent warning information board is arranged in a way that the road side sensor of the main road and the secondary road are linked with the sensor of the main road is as follows:
；
wherein L is z The distance from the entrance portal of the main tunnel to the road side sensor of the main tunnel is in unit m; l (L) s The distance from the entrance portal of the secondary road to the intelligent warning information board of the secondary road is in unit m; v 1 The speed is designed for the main tunnel, and the unit is m/s; v 2 The speed is designed for the tunnel secondary road, and the unit is m/s;
；
wherein t is r The visual recognition time (usually 1-2 s) of the intelligent warning information board is given in units s; t is t th Time (typically 0.4-1.0 s) in s is judged for the driver; l (L) 2 Is a transition section L 2 Is a unit of m.
The arrangement mode of the intelligent warning information board of the secondary road side sensor and the primary road linked with the secondary road side sensor is as follows:
；
wherein L is c The distance from the entrance portal of the secondary road of the tunnel to the sensor at the road side of the secondary road is in unit m; l (L) m The distance from the entrance portal of the main road of the tunnel to the intelligent warning information board of the main road is in unit m;
；
wherein, I 5 For the secondary road section L 5 Is a unit of m.
The invention has the beneficial effects that:
the invention reasonably divides the main road and the secondary road of the multi-entrance underpass tunnel, and the arranged vertical progressive guide bar can visually induce the driver so as to reduce the downhill section L of the tunnel 1 The vehicle running speed reminds a driver of the impending entering a tunnel; the transverse color progressive guide line and the visual progressive induction arc can carry out color progressive and visual induction, so that a driver is reminded of paying attention to a secondary road or a main road to get on at a road converging position, deceleration and lane changing measures are taken in advance, the response capability of the driver is improved, and the traffic safety of a multi-entrance underpass tunnel is guaranteed.
According to the intelligent warning type safety guiding subsystem for the road junction, the intelligent warning type safety guiding subsystem for the road junction is arranged, so that the driver can be effectively informed of the information of the coming vehicles on the main road or the secondary road, the driver can quickly and effectively judge the road junction, and the driver can be effectively guided to safely run.
Drawings
FIG. 1 is a schematic diagram of a frame of a system of the present invention;
FIG. 2 is a schematic diagram of 5 segments according to the present invention;
FIG. 3 is a schematic view of the arrangement of the vertical progressive guide bar of the present invention;
FIG. 4 is a schematic view of the transverse color progression guideline setup of the left sidewall of the main road of the present invention;
FIG. 5 is a secondary road segment L of the present invention 5 To the inner section L 4 A schematic diagram is arranged on a transverse color progressive guide line of the right side wall;
FIG. 6 is a schematic view of the arrangement of the visual progressive induction arcs of the present invention;
FIG. 7 is a schematic diagram of the arrangement of the visual progressive induction arcs of the main road of the present invention;
FIG. 8 is a schematic diagram of a road side sensor and an intelligent warning sign arrangement of the main road of the invention;
fig. 9 is a schematic diagram of the arrangement of the road side sensor and the intelligent warning information board of the secondary road of the invention.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
as shown in fig. 1-9, a multi-entry underpass tunnel color vision and intelligent warning safety guidance system, the system comprises:
5 sections of main road and secondary road of multi-entrance underpass tunnel including downhill section L 1 Transition section L 2 Confluence section L 3 Inner section L 4 And minor road segment L 5 ；
Color vision-induced safety guiding subsystem arranged on each section of multi-entrance underpass tunnel and comprising a downhill section L arranged on the multi-entrance underpass tunnel 1 The device comprises a vertical progressive guide bar of a side wall, transverse color progressive guide lines arranged on the side walls of a main path and a secondary path of a multi-entrance underpass tunnel, and visual progressive induction arcs arranged on the inner walls of the main path and the secondary path of the multi-entrance underpass tunnel;
wherein, downhill segment L 1 The vertical progressive guide strip of the side wall carries out visual induction on a driver so as to reduce the downhill section L of the tunnel 1 The vehicle running speed reminds a driver of the impending entering a tunnel; from transition L 2 Or minor road section L 5 Travel to the inner section L 4 During the process, the transverse color progressive guide line of the tunnel side wall and the visual progressive induction arc of the tunnel inner wall carry out color progressive and visual induction, so that a driver is reminded of being in the confluence section L 3 Taking the approach of the secondary road or the main road, and taking the measures of decelerating and changing the road in advance;
the intelligent warning type safety guiding subsystem is arranged on a main road and a secondary road of a multi-entrance underpass tunnel and comprises a road side sensor arranged on the main road, an intelligent warning information board linked with the secondary road, and an intelligent warning information board linked with the road side sensor arranged on the secondary road and the main road;
the intelligent warning information card of the secondary road is used for displaying the information of the coming vehicles of the primary road detected by the road side sensor of the primary road.
As shown in fig. 2, the arrangement of 5 sections is as follows:
downhill segment L 1 Length of l 1 ，，l s For the parking sight distance of the tunnel (obtained by a well-known calculation mode), the unit m and theta are the downhill section L 1 In degrees, r is a correction factor, < ->Alpha is a constant and represents the influence degree of gradient on the vehicle performance, the value range is 0.1-0.3, and the downhill section L 1 The end point of the tunnel is the entrance portal of the main tunnel;
transition section L 2 The junction triangle wall of the main road and the secondary road disappears from the entrance portal of the main road of the tunnel;
confluence section L 3 From transition section L 2 The width of the merging lane from the end point to the secondary road is 0;
inner section L 4 At the confluence section L 3 Then, extending to the inside of the tunnel;
minor road segment L 5 And the junction triangle wall between the main road and the secondary road is disappeared from the entrance portal of the secondary road of the tunnel.
As shown in fig. 3, the vertical progressive guide bar comprises a plurality of guide bars arranged on the downhill section L in sequence along the driving direction 1 The heights of the guide strips 1, 2 and 3 on the side walls at two sides are 1/4H, 1/2H and 3/4H respectively, H is the height of the tunnel, and the width of the vertical progressive guide strip is the same as the height of the tunnel repair channel.
The spacing between the guide strips 1, 2, 3 is obtained according to the aesthetic golden ratio:
，n=2，3；/>；
wherein D is 1 Is a downhill segment L 1 The distance from the starting point to the guide strip 1 is in m; d (D) 2 The distance between the guide strip 1 and the guide strip 2 is in m; d (D) 3 The distance between the guide bars 2 and 3 is in m.
As shown in fig. 4 and 5, the lateral color progression guideline adopts a color gradation setting and a width gradation setting, in which:
the color gradient is set to be in the transition section L 2 The side wall is set to be red gradually changed; in the secondary road section L 5 The side wall is set to be green and gradually changed; at the confluence section L 3 The left side wall is set to be in red and blue gradual change, and the right side wall is set to be in green and blue gradual change; inner section L 4 The side wall is set to be blue gradual change; the color gradual change is along the driving direction, and the color is changed from dark to light;
the width is gradually changed to be at the transition section L 2 From the starting point width S 1 Gradual change to end point width S 2 The method comprises the steps of carrying out a first treatment on the surface of the At the confluence section L 3 From the starting point width S 2 Gradual change to end point width S 2 The method comprises the steps of carrying out a first treatment on the surface of the Inner section L 4 From the starting point width S 2 Gradual change to end point width S 1 The method comprises the steps of carrying out a first treatment on the surface of the In the secondary road section L 5 From the starting point width S 1 Gradual change to end point width S 2 ；
Due to the confluence section L 3 Both the left side wall and the right side wall of (1) comprise two color gradations, so that the merging section L 3 Two guide lines respectively corresponding to right triangle structures with different gradually changed colors are arranged in the box, and the guide lines of the two right triangles are combined into a square, so that the width of the starting point is the same as that of the ending point;
in the setting of the gradual change of the width,；S i gradually changing a widening value for any point in the gradual change section by a unit m; k is the gradual change rate of any point, +.>；L x The distance between any point and the gradual change starting point is in unit m; the ratio of the total width of the gradual change to the total length of the gradual change is not more than 1/100; s is S 1 The value range of (2) is 0.08-0.12m; s is S 2 The range of the value of (2) is 0.3-0.35m.
As shown in fig. 6 and 7, the visual progressive induction arc comprises a transition section L arranged in sequence along the traveling direction 2 An induced arc 1, an induced arc 2 and an induced arc 3 on the left side wall; sequentially arranged on the secondary road section L along the driving direction 5 Induced arc of right sidewall4. An induction arc 5 and an induction arc 6; sequentially arranged at the confluence section L along the driving direction 3 And an inner section L 4 Induction arc 7, induction arc 8, induction arc 9, induction arc 10; the bottom ends of the induction arcs 1 and 7 are flush with the lower edge of the tunnel entrance portal side wall.
The width of the visual progressive induction arc is the same as the height of the tunnel repair channel, and the interval between the induction arcs is obtained according to the aesthetic golden ratio; specifically, the intervals among the induced arcs 1, 2 and 3 are obtained according to the aesthetic golden ratio; the intervals among the induced arcs 4, 5 and 6 are obtained according to the aesthetic golden ratio; the intervals among the induced arcs 7, 8, 9 and 10 are obtained according to the aesthetic golden ratio; the calculation principle is the same as that of the guide bar interval;
the induced arcs 1, 2, 3, 7, 8, 9 and 10 are progressive visual induced arcs of the main road, which are respectively 1/6 left side wall arcs, 1/3 left side wall arcs, 1/2 left side wall arcs, full arcs, 3/4 hole top arcs, 1/2 hole top arcs and 1/4 hole top arcs progressive in sequence along the driving direction from the entrance portal of the main road of the tunnel; the induced arcs 4, 5 and 6 are progressive visual induced arcs of the secondary road, and are respectively 1/6 right side wall arcs, 1/3 right side wall arcs and 1/2 right side wall arcs which are progressive in sequence along the driving direction from the entrance portal of the secondary road of the tunnel.
As shown in fig. 8, the way side sensors of the main road and the secondary road are linked with the intelligent warning information board in the following manner:
；
wherein L is z The distance from the entrance portal of the main tunnel to the road side sensor of the main tunnel is in unit m; l (L) s The distance from the entrance portal of the secondary road to the intelligent warning information board of the secondary road is in unit m; v 1 The speed is designed for the main tunnel, and the unit is m/s; v 2 The speed is designed for the tunnel secondary road, and the unit is m/s;
；
wherein t is r The visual recognition time of the intelligent warning information board is in units s; t is t th Judging time for a driver by a unit s; l (L) 2 Is a transition section L 2 Is a unit of m.
As shown in fig. 9, the way side sensor of the secondary road and the intelligent warning information board linked with the primary road are arranged in the following way:
；
wherein L is c The distance from the entrance portal of the secondary road of the tunnel to the sensor at the road side of the secondary road is in unit m; l (L) m The distance from the entrance portal of the main road of the tunnel to the intelligent warning information board of the main road is in unit m;
；
wherein, I 5 For the secondary road section L 5 Is a unit of m.
For example, as shown in fig. 8 and 9, when the road side sensor of the main road detects that the vehicle arrives on the X-th lane of the main road, information is transmitted to the intelligent warning information board of the secondary road linked with the main road, and the vehicle arrives on the X-th lane of the main road is displayed on the intelligent warning information board of the secondary road, so that the driver can be informed of the information of the road merging position, and the judgment accuracy of the driver can be improved.
Claims (9)
1. The utility model provides a tunnel color vision and intelligent warning safety guide system are worn under many inlets which characterized in that, the system includes:
5 sections of main road and secondary road of multi-entrance underpass tunnel including downhill section L 1 Transition section L 2 Confluence section L 3 Inner section L 4 And minor road segment L 5 ；
Color vision-induced safety guiding subsystem arranged on each section of multi-entrance underpass tunnel and comprising a downhill section L arranged on the multi-entrance underpass tunnel 1 Vertical progressive guide strip of side wall and tunnel under multiple inletsLateral color progressive guide lines on the side walls of a main road and a secondary road of the road, and visual progressive induction arcs on the inner walls of the main road and the secondary road of the multi-entrance underpass tunnel;
wherein, downhill segment L 1 The vertical progressive guide strip of the side wall carries out visual induction on a driver so as to reduce the downhill section L of the tunnel 1 The vehicle running speed reminds a driver of the impending entering a tunnel; from transition L 2 Or minor road section L 5 Travel to the inner section L 4 During the process, the transverse color progressive guide line of the tunnel side wall and the visual progressive induction arc of the tunnel inner wall carry out color progressive and visual induction, so that a driver is reminded of being in the confluence section L 3 Taking the approach of the secondary road or the main road, and taking the measures of decelerating and changing the road in advance;
the intelligent warning type safety guiding subsystem is arranged on a main road and a secondary road of a multi-entrance underpass tunnel and comprises a road side sensor arranged on the main road, an intelligent warning information board linked with the secondary road, and an intelligent warning information board linked with the road side sensor arranged on the secondary road and the main road;
the intelligent warning information card of the secondary road is used for displaying the information of the coming vehicles of the primary road detected by the road side sensor of the primary road.
2. The multi-entry underpass tunnel color vision and intelligent warning safety guidance system of claim 1, wherein: the arrangement mode of the 5 sections is as follows:
downhill segment L 1 Length of l 1 ，，l s For the parking sight distance of the tunnel, the unit m and theta are the downhill section L 1 In degrees, r is a correction factor, < ->Alpha is a constant and represents the influence degree of gradient on the vehicle performance, the value range is 0.1-0.3, and the vehicle is downhillSegment L 1 The end point of the tunnel is the entrance portal of the main tunnel;
transition section L 2 The junction triangle wall of the main road and the secondary road disappears from the entrance portal of the main road of the tunnel;
confluence section L 3 From transition section L 2 The width of the merging lane from the end point to the secondary road is 0;
inner section L 4 At the confluence section L 3 Then, extending to the inside of the tunnel;
minor road segment L 5 And the junction triangle wall between the main road and the secondary road is disappeared from the entrance portal of the secondary road of the tunnel.
3. The multi-entry underpass tunnel color vision and intelligent warning safety guidance system of claim 2, wherein: the vertical progressive guide strip comprises a descending slope section L which is sequentially arranged along the driving direction 1 The heights of the guide strips 1, 2 and 3 on the side walls at two sides are 1/4H, 1/2H and 3/4H respectively, H is the height of the tunnel, and the width of the vertical progressive guide strip is the same as the height of the tunnel repair channel.
4. A multi-entry underpass tunnel color vision and intelligent alert safety guidance system as defined in claim 3, wherein: the intervals among the guide strips 1, 2 and 3 are obtained according to the aesthetic golden ratio:
，n=2，3；/>；
wherein D is 1 Is a downhill segment L 1 The distance from the starting point to the guide strip 1 is in m; d (D) 2 The distance between the guide strip 1 and the guide strip 2 is in m; d (D) 3 The distance between the guide bars 2 and 3 is in m.
5. The multi-entry underpass tunnel color vision and intelligent warning safety guidance system of claim 2, wherein: the transverse color progressive guide line adopts color gradual change setting and width gradual change setting, wherein:
the color gradient is set to be in the transition section L 2 The side wall is set to be red gradually changed; in the secondary road section L 5 The side wall is set to be green and gradually changed; at the confluence section L 3 The left side wall is set to be in red and blue gradual change, and the right side wall is set to be in green and blue gradual change; inner section L 4 The side wall is set to be blue gradual change; the color gradual change is along the driving direction, and the color is changed from dark to light;
the width is gradually changed to be at the transition section L 2 From the starting point width S 1 Gradual change to end point width S 2 The method comprises the steps of carrying out a first treatment on the surface of the At the confluence section L 3 From the starting point width S 2 Gradual change to end point width S 2 The method comprises the steps of carrying out a first treatment on the surface of the Inner section L 4 From the starting point width S 2 Gradual change to end point width S 1 The method comprises the steps of carrying out a first treatment on the surface of the In the secondary road section L 5 From the starting point width S 1 Gradual change to end point width S 2 ；
Due to the confluence section L 3 Both the left side wall and the right side wall of (1) comprise two color gradations, so that the merging section L 3 Two guide lines respectively corresponding to right triangle structures with different gradually changed colors are arranged in the box, and the guide lines of the two right triangles are combined into a square, so that the width of the starting point is the same as that of the ending point;
in the setting of the gradual change of the width,；S i gradually changing a widening value for any point in the gradual change section by a unit m; k is the gradual change rate of any point, +.>；L x The distance between any point and the gradual change starting point is in unit m; the ratio of the total width of the gradual change to the total length of the gradual change is not more than 1/100; s is S 1 The value range of (2) is 0.08-0.12m; s is S 2 The range of the value of (2) is 0.3-0.35m.
6. Root of Chinese characterThe multi-entry underpass tunnel color vision and intelligent warning safety guidance system of claim 2, wherein: the visual progressive induction arc comprises a transition section L which is sequentially arranged along the driving direction 2 An induced arc 1, an induced arc 2 and an induced arc 3 on the left side wall; sequentially arranged on the secondary road section L along the driving direction 5 An induced arc 4, an induced arc 5 and an induced arc 6 on the right side wall; sequentially arranged at the confluence section L along the driving direction 3 And an inner section L 4 Induction arc 7, induction arc 8, induction arc 9, induction arc 10; the bottom ends of the induction arcs 1 and 7 are flush with the lower edge of the tunnel entrance portal side wall.
7. The multi-entry underpass tunnel color vision and intelligent warning security guidance system of claim 6, wherein: the width of the visual progressive induction arc is the same as the height of the tunnel repair channel, and the interval between the induction arcs is obtained according to the aesthetic golden ratio;
the induced arcs 1, 2, 3, 7, 8, 9 and 10 are progressive visual induced arcs of the main road, which are respectively 1/6 left side wall arcs, 1/3 left side wall arcs, 1/2 left side wall arcs, full arcs, 3/4 hole top arcs, 1/2 hole top arcs and 1/4 hole top arcs progressive in sequence along the driving direction from the entrance portal of the main road of the tunnel; the induced arcs 4, 5 and 6 are progressive visual induced arcs of the secondary road, and are respectively 1/6 right side wall arcs, 1/3 right side wall arcs and 1/2 right side wall arcs which are progressive in sequence along the driving direction from the entrance portal of the secondary road of the tunnel.
8. The multi-entry underpass tunnel color vision and intelligent warning safety guidance system of claim 2, wherein: the intelligent warning information board is arranged in a way that the road side sensor of the main road and the secondary road are linked with the sensor of the main road is as follows:
；
wherein L is z Road side sensor for entrance portal to main road of tunnelDistance, unit m; l (L) s The distance from the entrance portal of the secondary road to the intelligent warning information board of the secondary road is in unit m; v 1 The speed is designed for the main tunnel, and the unit is m/s; v 2 The speed is designed for the tunnel secondary road, and the unit is m/s;
；
wherein t is r The visual recognition time of the intelligent warning information board is in units s; t is t th Judging time for a driver by a unit s; l (L) 2 Is a transition section L 2 Is a unit of m.
9. The multi-entry underpass tunnel color vision and intelligent alert safety guidance system of claim 8, wherein: the arrangement mode of the intelligent warning information board of the secondary road side sensor and the primary road linked with the secondary road side sensor is as follows:
；
wherein L is c The distance from the entrance portal of the secondary road of the tunnel to the sensor at the road side of the secondary road is in unit m; l (L) m The distance from the entrance portal of the main road of the tunnel to the intelligent warning information board of the main road is in unit m;
；
wherein, I 5 For the secondary road section L 5 Is a unit of m.
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