CN110616612A - Asymmetric widening vision induction system for small-radius curve of highway tunnel - Google Patents
Asymmetric widening vision induction system for small-radius curve of highway tunnel Download PDFInfo
- Publication number
- CN110616612A CN110616612A CN201911017541.4A CN201911017541A CN110616612A CN 110616612 A CN110616612 A CN 110616612A CN 201911017541 A CN201911017541 A CN 201911017541A CN 110616612 A CN110616612 A CN 110616612A
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- Prior art keywords
- curve
- road
- tunnel
- widening
- small
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/002—Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/007—Design or auxiliary structures for compelling drivers to slow down or to proceed with caution, e.g. tortuous carriageway; Arrangements for discouraging high-speed or non-resident traffic
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/619—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings with reflectors; with means for keeping reflectors clean
Abstract
The invention relates to the technical field of traffic safety facilities, in particular to an asymmetric widening visual guidance system for a small-radius curve of a highway tunnel, which comprises the curve with the asymmetrically widened inner side, a guidance facility of a warning post arranged at the side of the curve of the tunnel, a guidance facility of a vertical lane indication mark arranged at the side of a widening section, a guidance facility of a visual reference strip arranged at the side wall of the curve of the tunnel, a guidance facility of a toughened glass road button arranged in a double yellow line at the center of the road and a guidance facility of a grid line arranged on the road surface of the widening section. The invention widens the inner side of the curve and combines with a perfect sight line induction design, has good economy and practicability, can improve the driving sight distance of a driver driving at the curve, ensures the continuity of sight line induction, enhances the perception judgment of the driver on the curvature of the curve of the tunnel and improves the driving safety of the small-radius curve section of the road tunnel.
Description
Technical Field
The invention relates to the technical field of traffic safety facilities, in particular to an asymmetric widening vision induction system for a small-radius curve of a road tunnel.
Background
Influenced by landform, mountain areas, engineering investment budget and the like, the mountain areas in the middle and western parts of China have poor highway line shapes and more tunnels. The space in the tunnel is relatively closed, the light environment is relatively poor, and the sight distance visual area of a driver is limited in the driving process. In particular to the poor line shape of the road and the tunnel, low lighting condition and incomplete traffic facilities. Particularly, the sight distance of the curve road section of the small-radius tunnel is insufficient, the driving safety is low, and certain threats are formed to the personal and property safety of traffic travelers.
When a driver drives at a curve road section of a small-radius tunnel, due to insufficient sight distance, the driver is often difficult to find the opposite vehicles in the tunnel in time, and collision or scraping is very easy to cause. Relevant investigation results show that the accident rate of the curve section of the small-radius tunnel is far higher than the average accident rate of the whole line. In order to solve the traffic safety problem of small-radius curves of highway tunnels, the prior method is to change straight lines through curves or enhance curve illumination and the like. But the engineering quantity for changing the curve into the straight line is large, and the economy is poor; the problem of sight distance cannot be fundamentally solved by enhancing the illumination of the curve, and the effect is limited.
In combination with the related traffic safety problem and the defects of the existing method, the invention asymmetrically widens the inner side of the curve to improve the driving sight distance of a driver driving at the curve, and performs curve section sight line guidance design to enhance the perception judgment of the driver on the curvature of the curve of the tunnel, aiming at providing a road tunnel small-radius curve safety guarantee method with small engineering quantity and good inductivity.
Disclosure of Invention
Aiming at the problems, the invention provides an asymmetric widening vision induction system for a small-radius curve of a road tunnel, which widens the inner side of the curve and combines with a perfect sight line induction design.
In order to achieve the purpose, the technical scheme applied by the invention is as follows:
the utility model provides a road tunnel minor radius bend asymmetric visual induction system that widens, includes the inboard asymmetric bend of widening, locates the induced facility of the warning post of tunnel bend roadside, locates the induced facility of the vertical lane pilot mark of widening section roadside, locates the induced facility of the visual reference strip of tunnel bend lateral wall, locates the induced facility of the toughened glass knob of road center double yellow lines and locates the induced facility of the gridlines on widening section road surface.
Furthermore, the curve with the asymmetrically widened inner side is widened on the inner side of the curve with a small radius, the outer side of the curve is unchanged, the inner widening range is widened from a linear straight dot to a linear straight dot section to meet the sight distance requirement, and the height of the road surface at the widening position is the same as that of the road surface of the traffic lane.
Further, locate the warning post of tunnel bend roadside adopts the symmetric position setting in the bend both sides, and each adjacent warning post interval is 3m, and the warning post in the bend outside is 10cm than inboard warning post height in same cross section, and the warning post of bend circle midpoint department is highest in the same side, is the quadratic curve and reduces to both ends, and the reflective marker of the warning post of same side is the quadratic curve and reduces to both ends gradually equally, and the reflective marker of the warning post of same side wholly is triangle arrow point shape.
Furthermore, the vertical lane indication marks arranged on the road side of the widening section are arranged at three points and are respectively arranged at the outer sides of the warning posts at the straight round points, the round middle points and the round straight points of the widening section, and the distance between the inner side edge of each vertical lane indication mark and the warning post is more than 30 cm.
Further, the visual reference bars arranged on the side wall of the tunnel curve are respectively arranged on the outer side and the inner side of the straight round point, the round middle point and the round straight point of the widening section, the inner side visual reference bar of the same cross section is lower than the outer side visual reference bar, the height of the outer side visual reference bar is 2/3 of the height of the tunnel, the height of the inner side visual reference bar is 1/2 of the height of the tunnel, the width of the outer side visual reference bar of the tunnel is 10-15cm, and the width of the inner side visual reference bar is 7-10 cm.
Furthermore, the toughened glass road buttons arranged in the double yellow lines at the center of the road are arranged at a distance of 3m and are crossed with the warning posts at the two sides of the road,
furthermore, the grid lines arranged on the widened road surface are yellow, the line width of the grid lines is 15-20cm, and the distance between the grid lines is 2-3 m.
The invention has the beneficial effects that:
1) the invention only asymmetrically widens the inner side of the curve, the height of the road surface at the widened position is the same as that of the road surface of the lane, the sight distance of the curve is increased by using small engineering quantity, and the invention has good economical efficiency and practicability;
2) the warning posts are arranged at the symmetrical positions of the two sides of the curve, the warning post at the outer side of the curve in the same cross section is higher than the inner side, the visual reference bar at the outer side of the curve is wider than the inner side, and the asymmetrical traffic guidance facility is favorable for enhancing the perception judgment of a driver on the curvature of the curve of the tunnel;
3) the warning columns at the middle points of the curve circles on the same side are highest and are reduced towards two ends in a secondary curve manner, the light reflecting marks of the warning columns on the same side are also gradually reduced towards two ends in a secondary curve manner, and the light reflecting marks of the warning columns on the same side are integrally in a triangular arrow shape, so that the continuity of sight line induction is favorably ensured;
4) the vertical lane indicating signs arranged on the sides of the widened sections and the grid lines applied to the road surfaces of the widened sections can warn a driver that the widened sections are not motor lanes, so that vehicles are prevented from entering or stopping in the widened areas, and potential safety hazards are prevented from being caused.
Drawings
FIG. 1 is a front view of a bend widening and sight inducing design;
FIG. 2 is a plan view of a bend widening and sight inducing design;
FIG. 3 is a side view of a roadside warning post design.
1. A warning post; 2. a vertical lane indicator; 3. a visual reference bar; 4. tempering the glass road buttons; 5. and (4) grid lines.
Detailed Description
The technical solution of the present invention is described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, the asymmetric widening visual guidance system for the small-radius curve of the road tunnel comprises the curve with the asymmetrically widened inner side, a guidance facility of a warning post 1 arranged at the side of the curve of the tunnel, a guidance facility of a vertical lane indication mark 2 arranged at the side of a widening section, a guidance facility of a visual reference strip 3 arranged at the side wall of the curve of the tunnel, a guidance facility of a toughened glass road button 4 arranged in a double yellow line at the center of the road and a guidance facility of a grid line 5 arranged on the road surface of the widening section. The above constitutes the basic structure of the present invention.
According to the invention, the inner side of the curve is widened, and the traffic facilities such as the warning post 1 arranged at the side of the tunnel curve, the vertical lane indication mark 2 arranged at the side of the widening section, the visual reference strip 3 arranged at the side wall of the tunnel curve, the toughened glass road button 4 arranged in the double yellow lines at the center of the road, the grid lines 5 arranged on the road surface of the widening section are reasonably combined, so that the driving sight distance of a driver in the curve can be improved, the continuity of sight induction is ensured, the perception judgment of the driver on the curvature of the tunnel curve is enhanced, and the driving safety of the small-radius curve section of the road tunnel is improved.
More specifically, the curve with the asymmetrically widened inner side is widened at the inner side of the curve with a small radius, the outer side of the curve is unchanged, the section from a straight round point to a round straight point with a linear inner side widening range is widened to meet the sight distance requirement, and the road surface at the widening position is as high as the road surface of a traffic lane. By adopting the design, the sight distance of the curve can be increased by using small engineering quantity, the driving safety of the small-radius curve is improved, and the design has good economical efficiency and practicability.
In practical application, as shown in fig. 1, the dashed line part AGC is the position of widening the tunnel wall inside the front tunnel curve, and the solid line AIE is the position after widening. The broken line FGCB is an access road on the inner side of the front widening curve, the solid line HIED is an access road after widening, and the height of the road surface BD at the widening section is the same as the height of the road surface OB of the roadway.
More specifically, locate tunnel bend roadside warning post 1 and adopt the symmetric position setting in the bend both sides, and the warning post 1 in the bend outside is higher than the inboard in same cross section, asymmetric traffic guidance facility design is favorable to reinforcing the perception of driver to tunnel bend camber and judges, the warning post 1 of bend central point department is the highest in same side, it reduces to both ends to be the secondary curve, the reflection of light mark of the warning post 1 of same side is the secondary curve equally and reduces to both ends gradually, the whole triangle arrow point shape that is of the reflection of light mark of the warning post 1 of same side, adopt such design, be favorable to ensureing the induced continuity of sight.
In practical application, as shown in fig. 1 and 2, the warning pillars 1 are arranged at symmetrical positions at two sides of a curve, the distance between every two adjacent warning pillars is 3m, and as shown in fig. 1, the warning pillar 1 at the outer side of the curve is 10cm higher than the warning pillar 1 at the inner side of the curve in the same cross section. As shown in fig. 3, the warning post 1 at the middle point of the curve circle in the same side is highest and is reduced towards two ends in a quadratic curve manner (as shown by the quadratic dotted line at the top of fig. 3), the reflective mark of the warning post 1 on the same side is also gradually reduced towards two ends in a quadratic curve manner, and the reflective mark of the warning post 1 on the same side is entirely in a triangular arrow shape (as shown by the dotted line in the middle of fig. 3).
More specifically, the vertical lane indicator 2 arranged on the side of the widened section is provided with three setting points, which are respectively arranged at the outer sides of the straight round point, the round middle point and the warning post 1 at the round straight point of the widened section, and the lateral clearance of the lane is noticed when the warning post is arranged. By adopting the design, the driver can be warned to keep driving in the current lane, and the driver is prevented from entering the widened area by mistake.
In practical application, the roadside vertical lane indication signs 2 are respectively arranged at three positions of a straight dot, a circular middle point and a circular straight point of the widened section, as shown in fig. 1 and 2, the roadside vertical lane indication signs 2 are arranged at the outer side of the warning post 1, and as shown in fig. 1, the distance from the inner side edge of the roadside vertical lane indication signs 2 to the warning post 1 is larger than 30cm so as to ensure lateral clearance.
More specifically, the visual reference bars 3 arranged on the side wall of the tunnel curve are arranged at three points, and are respectively arranged on the straight round points, the round middle points and the outer side and inner side tunnel side walls at the straight points of the circle of the widening section, and the arrangement of the visual reference bars 3 can enhance the contour induction of the tunnel; and the visual reference strip 3 on the outer side of the curve in the same cross section is higher than the inner side, and the visual reference strip 3 on the outer side of the curve is wider than the inner side, so that the asymmetric traffic guidance facility design is favorable for enhancing the perception judgment of the driver on the curvature of the curve in the tunnel.
In practical application, as shown in fig. 1, the visual reference bars 3 are respectively arranged on the outer side and the inner side of the straight round point, the round middle point and the round straight point of the widening section, the inner visual reference bar 3 of the same cross section is lower than the outer visual reference bar 3, the height of the outer visual reference bar 3 is 2/3 of the tunnel height, the height of the inner visual reference bar 3 is 1/2 of the tunnel height, the width of the outer visual reference bar 3 of the tunnel is 10-15cm, and the width of the inner visual reference bar 3 is 7-10 cm.
More specifically, the toughened glass road buttons 4 arranged in the double yellow lines at the center of the road are arranged to cross the warning posts 1 at the two sides of the road. By adopting the design, the driver can be warned to keep driving in the current lane when turning, and the driver is prevented from driving into the opposite lane.
In practical application, as shown in fig. 2, the toughened glass road buttons 4 arranged in the double yellow lines at the center of the road are arranged at intervals of 3m and are arranged to intersect with the warning posts 1 at two sides of the road.
More specifically, the grid lines 5 applied to the widened road surface are yellow. By adopting the design, the driver can be warned that the widened road section is not a motor vehicle lane, and the vehicle is prevented from entering or stopping in the widened area so as to prevent potential safety hazards.
In practical application, as shown in fig. 2, yellow grid lines 5 are marked on the road surface of the widened area, the line width of each grid line 5 is 15-20cm, and the distance is 2-3 m.
While the embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (7)
1. The utility model provides a vision induction system is widened to road tunnel minor diameter bend asymmetry which characterized in that: the road comprises a curve with an asymmetrically widened inner side, an induction facility of a warning post (1) arranged on the side of the tunnel curve, an induction facility of a vertical lane indication mark (2) arranged on the side of a widening section, an induction facility of a visual reference strip (3) arranged on the side wall of the tunnel curve, an induction facility of a toughened glass road button (4) arranged in a double yellow line at the center of a road and an induction facility of a grid line (5) arranged on the road surface of the widening section.
2. The asymmetric widening vision induction system for the small-radius curve of the road tunnel according to claim 1, is characterized in that: the bend with the asymmetrically widened inner side is widened on the inner side of the bend with a small radius, the outer side of the bend is unchanged, the section from a straight round point to a round straight point with the linear widening range on the inner side is widened to meet the sight distance requirement, and the height of the road surface at the widening position is the same as that of the road surface of a driveway.
3. The asymmetric widening vision induction system for the small-radius curve of the road tunnel according to claim 1, is characterized in that: locate warning post (1) of tunnel bend trackside and adopt the symmetrical position setting in the bend both sides, and each adjacent warning post (1) interval is 3m, warning post (1) in the bend outside is 10cm than inboard warning post (1) height in same cross section, warning post (1) of bend round midpoint department is the highest in same side, it reduces to both ends to be the quadratic curve, the reflection of light mark of warning post (1) of same side is the quadratic curve equally and reduces to both ends gradually, the whole triangle arrow point shape that is of the reflection of light mark of warning post (1) of same side.
4. The asymmetric widening vision induction system for the small-radius curve of the road tunnel according to claim 1, is characterized in that: the vertical lane indicating mark (2) arranged on the road side of the widening section is arranged at three points and is respectively arranged at the outer sides of the warning post (1) at the straight round point, the round middle point and the round straight point of the widening section, and the distance between the inner side edge of the vertical lane indicating mark (2) and the warning post (1) is larger than 30 cm.
5. The asymmetric widening vision induction system for the small-radius curve of the road tunnel according to claim 1, is characterized in that: the visual reference strip (3) arranged on the side wall of the tunnel curve is arranged on the outer side and the inner side of the straight round point, the round middle point and the round straight point of the widening section respectively, the inner side visual reference strip (3) of the same cross section is lower than the outer side visual reference strip (3), the height of the outer side visual reference strip (3) is 2/3 of the height of the tunnel, the height of the inner side visual reference strip (3) is 1/2 of the height of the tunnel, the width of the outer side visual reference strip (3) of the tunnel is 10-15cm, and the width of the inner side visual reference strip (3) is 7-10 cm.
6. The asymmetric widening vision induction system for the small-radius curve of the road tunnel according to claim 1, is characterized in that: the toughened glass road buttons (4) arranged in the double yellow lines at the center of the road are arranged at intervals of 3m and are arranged in a cross way with the warning posts (1) at the two sides of the road.
7. The asymmetric widening vision induction system for the small-radius curve of the road tunnel according to claim 1, is characterized in that: the grid lines (5) arranged on the widened road surface are yellow, the line width of the grid lines is 15-20cm, and the distance between the grid lines is 2-3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017541.4A CN110616612A (en) | 2019-10-24 | 2019-10-24 | Asymmetric widening vision induction system for small-radius curve of highway tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911017541.4A CN110616612A (en) | 2019-10-24 | 2019-10-24 | Asymmetric widening vision induction system for small-radius curve of highway tunnel |
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| Publication Number | Publication Date |
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| CN110616612A true CN110616612A (en) | 2019-12-27 |
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| CN201911017541.4A Pending CN110616612A (en) | 2019-10-24 | 2019-10-24 | Asymmetric widening vision induction system for small-radius curve of highway tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962481A (en) * | 2021-02-08 | 2021-06-15 | 武汉理工大学 | Highway tunnel is put down and is indulged induced system of combination highway section sight |
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Application publication date: 20191227 |