CN106780269A - A kind of mountain highway descending sharp turn long section vibrates the method to set up of speed reduction marking - Google Patents
A kind of mountain highway descending sharp turn long section vibrates the method to set up of speed reduction marking Download PDFInfo
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- CN106780269A CN106780269A CN201611063553.7A CN201611063553A CN106780269A CN 106780269 A CN106780269 A CN 106780269A CN 201611063553 A CN201611063553 A CN 201611063553A CN 106780269 A CN106780269 A CN 106780269A
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- speed reduction
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- 230000009467 reduction Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 26
- 206010039203 Road traffic accident Diseases 0.000 claims abstract description 7
- 238000000205 computational method Methods 0.000 claims description 17
- 230000036461 convulsion Effects 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 2
- 238000007619 statistical method Methods 0.000 claims description 2
- 238000004364 calculation method Methods 0.000 claims 1
- 230000001149 cognitive effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- G06Q50/40—
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
- G08G1/0129—Traffic data processing for creating historical data or processing based on historical data
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
Abstract
The invention discloses the method to set up that a kind of mountain highway descending sharp turn long section vibrates speed reduction marking, the method is based on cognitive psychology and ergonomics principle, it is determined that these particularly serious traffic accidents easily send out section vibration speed reduction marking set location and vibration speed reduction marking between spacing distance, and then scientifically and rationally to driver enter mountain area climb and fall sharp turn section before carry out deceleration control and prompting.The present invention provides a set of careful effective method to set up for the vibration speed reduction marking in mountain highway descending sharp turn long section is set.
Description
Technical field
The invention belongs to traffic safety technology and traffic management technology field, it is related to a kind of mountain highway descending sharp turn long
Section vibrates the method to set up of speed reduction marking.
Background technology
China is the country on many mountains, and mountain area area accounts for more than the 70% of area.Mountain highway is in highway in China net
Occupy larger proportion, and these mountain highways are mostly low-grade highways, are situated at the foot of a hill and beside a stream, road alignment is cranky, Curved Continuous
Road is more, and turning radius are small, and many section bends often occur simultaneously with Large Longitudinal Slope, and road sighting distance is poor, substantially increases road
The probability and casualty rate of traffic accident.According to China's road traffic accident annual statistics, China's particularly serious traffic accident in recent years
In have significant percentage of accident be occur in mountain highway, wherein in the majority with descending sharp turn long section.
Statistics display, overturns and pendant car is the Main Morphology that the severe and great casualty in these sections occurs, and causes to overturn
With pendant car main reason is that entering curved excessive velocities, these sections lack effective deceleration facilities and prompting indicates.
Deceleration jerks graticule is more conventional non-imposed rate controlling facility a kind of at present.But slow down mark in practical application
The method to set up of line is applied to highway, and the using effect in mountain area descending sharp turn section is not good.In traffic engineering practice,
Lack the method to set up that a kind of effective mountain highway descending sharp turn long section vibrates speed reduction marking, it is impossible to be the particularly serious friendship in mountain area
Interpreter's event easily hair section provides effective speed management and control.
The content of the invention
Technical problem：A kind of accuracy of present invention offer is high, can effectively reduce vehicle rollover and pendant car risk, improves and hands over
The mountain highway descending sharp turn long section of logical security vibrates the method to set up of speed reduction marking, is that the particularly serious traffic accident in mountain area is easy
Hair section provides effective speed management and control.
Technical scheme：The method to set up of mountain highway descending sharp turn long of the invention section vibration speed reduction marking, including with
Lower step：
Step 1：Mountain highway accident Chang Fadian is recognized, specific method is：To nearly 3 years mountain highways at descending sharp turn long
The traffic accident in section carries out statistical analysis, and the accident frequency in descending sharp turn section long each to mountain area is calculated, and is denoted as respectively
f1、f2、f3...fn, and descending arrangement is carried out, the high frequency section for choosing preceding 10%~15% is accident Chang Fadian, and wherein n is road
Hop count；
Step 2：The basic data at mountain highway descending sharp turn long section accident Chang Fadian places is collected, including elbow curve is partly
Footpath, before the cross fall on road surface and entrance sharp turn section, the restricted speed in upstream section；
Step 3：It is determined that into the safe driving speed V before descending bend0, computational methods are：
Wherein：R is elbow curve radius, and unit m, μ are cornering ratio, and i is the cross fall on road surface, unit °；
Step 4：Determine at first vibration speed reduction marking and descending sharp turn easement curve end points apart from L, computational methods
For：
L=S1+S2+S3+B
Wherein：S1Recognize reading distance for vibration speed reduction marking, unit m, computational methods are：
V1To recognize speed when reading to start, unit km/h；t1It is the time that driver is recognized required for reading speed reduction marking, unit
s；
S2：The decision-making distance of graticule, unit m, computational methods are：
t2Time required for driver's decision-making, unit s；
S3：The reaction distance of graticule, unit m, computational methods are：
t3Time required for driver's reaction, unit s；
B：Action distance, unit m, computational methods are：
A is that vehicle travels the deceleration on deceleration jerks graticule, unit m/s2；
Step 5：First vibration speed reduction marking is being set at the L positions of descending sharp turn easement curve end points upstream；
Step 6：Determine the setting spacing of adjacent deceleration jerks graticule, the n-th road and the (n+1)th road deceleration jerks graticule interval Sn
Computational methods it is as follows：
Wherein：Δ t is the time interval of every twice horizontal line, and computational methods are：
Wherein：N is the number that deceleration jerks vibrate graticule；T is the total time by vibrating speed reduction marking；
Step 7：Be starting point with first deceleration jerks graticule, the spacing calculated according to the step 6 along direction of traffic according to
Secondary setting deceleration jerks graticule.
Further, in the inventive method, in step 3, cornering ratio μ values are 0.05~0.06.
Further, in the inventive method, in the step 4, vehicle velocity V when reading to start is recognized1Slope sharp turn section is removed to break
85% speed in point upstream section.
Further, in the inventive method, in the step 6, by the total time t following formula meters for vibrating speed reduction marking
Calculate：
Further, in the inventive method, the restricted speed in the step 2 is 85% speed.
Further, in the inventive method, deceleration a of the vehicle traveling on deceleration jerks graticule takes in the step 4
2.5m/s2。
Specifically, in the step 5 and step 7, according to GB《Road signs and graticule》(GB5768-2009)
Ask to carry out vibrating the material of speed reduction marking, size and be designed.
Beneficial effect：The present invention compared with prior art, with advantages below：
The present invention is based on cognitive psychology and ergonomics principle, and the driving behavior to driver is analysed in depth,
Compared to more existing closest to device, linear and road surface the particularity of mountain highway is taken into full account when safe speed is calculated, it is accurate
True property is higher；The present invention gives the computational methods of deceleration jerks graticule spacing, and the spacing of conventional apparatus set often according to
According to personal experience, lack effective scientific guidance.Mountain highway descending non-intersection speed management and control long, energy can be carried out according to the present invention
It is enough effectively to reduce the risk that vehicle enters section overturning and pendant car, so as to improve the traffic safety of mountain highway.
Brief description of the drawings
Fig. 1 is the setting schematic diagram that mountain highway descending sharp turn long section vibrates speed reduction marking；
Fig. 2 is the schematic diagram of the specific embodiment of the invention.
Specific embodiment
With reference to embodiment and Figure of description, the present invention is further illustrated.
The present invention is based on cognitive psychology and ergonomics principle, determines that the vibration of mountain highway descending sharp turn long section subtracts
The method to set up of fast graticule, scientifically and rationally easily to send out the advance in section into mountain highway severe and great casualty to driver
Row deceleration management and control and prompting, it is specific as shown in figure 1, detailed description refers to Summary.
《National and provincial supervisor's road danger section standard》The standard in middle regulation mountain area descending sharp turn long section is continuous
Descending length is more than 3km, and average gradient is more than 5.5%.The basic data in section is easily sent out by collecting certain highway accident, is obtained
Start position mileage pile No. in mountain highway descending sharp turn long section is K10+100, and the sharp turn section elbow curve half
Footpath is 30 meters, and the cross fall on road surface is 6%.Into before the section of sharp turn, 85% speed in upstream section is (when perceiving beginning
Vehicle velocity V1) it is 60km/h, 85% speed refers to that in all vehicles of the sections of road Vehicle Speed for having 85% exists
Below this speed, vehicle supervision department's restricted speed often with this speed as section, then：
(1) safe speed into mountain highway descending sharp turn long section is determined.According to the content of the invention, cornering ratio μ
0.05 is taken, then V0It is calculated as follows：
(2) determine the last speed reduction marking of vibration together with descending sharp turn long section starting point apart from L.According to the content of the invention,
t1Take 1.3s, t2Take 0.6s, t31.5s is taken, a takes vibration speed reduction marking deceleration 1.8m/s2, then L be calculated as follows：
Calculated according to more than, obtain be apart from L at first vibration speed reduction marking and descending sharp turn entrance end points long
125m。
(3) it is starting point to vibrate speed reduction marking with first on road, and vibration together is set gradually down along direction of traffic
Speed reduction marking, the number n for vibrating speed reduction marking elects 4 roads as.After calculating successively together vibration speed reduction marking together with preceding between graticule
Interval, detailed process is as follows：
Computational methods in inventionCan obtain：
Spacing distance determine after, on road with first vibration speed reduction marking be starting point, along direction of traffic according to
GB《Road signs and graticule》(GB5768-2009) setting for carrying out vibrating speed reduction marking is required.
The specific implementation of " mountain highway descending sharp turn long section vibrates speed reduction marking " is can be obtained by according to above step
Mode, as shown in Figure 2.
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, some improvement and equivalent can also be made, these are to the present invention
Claim be improved with the technical scheme after equivalent, each fall within protection scope of the present invention.
Claims (6)
1. a kind of mountain highway descending sharp turn long section vibrates the method to set up of speed reduction marking, it is characterised in that the method includes
Following steps：
Step 1：Mountain highway accident Chang Fadian is recognized, specific method is：To nearly 3 years mountain highways in descending sharp turn long section
Traffic accident carry out statistical analysis, the accident frequency in descending sharp turn section long each to mountain area is calculated, and f is denoted as respectively1、f2、
f3...fn, and descending arrangement is carried out, the high frequency section for choosing preceding 10%~15% is accident Chang Fadian, and wherein n is section number；
Step 2：The basic data at mountain highway descending sharp turn long section accident Chang Fadian, including elbow curve radius are collected,
Before the cross fall on road surface and entrance sharp turn section, the restricted speed in upstream section；
Step 3：It is determined that into the safe driving speed V before descending bend0, computational methods are：
Wherein：R is elbow curve radius, and unit m, μ are cornering ratio, and i is the cross fall on road surface, unit °；
Step 4：Determine at first vibration speed reduction marking and descending sharp turn easement curve end points apart from L, computational methods are：
L=S1+S2+S3+B
Wherein：S1Recognize reading distance for vibration speed reduction marking, unit m, computational methods are：
V1To recognize speed when reading to start, unit km/h；t1It is the time that driver is recognized required for reading speed reduction marking, unit s；
S2：The decision-making distance of graticule, unit m, computational methods are：
t2Time required for driver's decision-making, unit s；
S3：The reaction distance of graticule, unit m, computational methods are：
t3Time required for driver's reaction, unit s；
B：Action distance, unit m, computational methods are：
A is that vehicle travels the deceleration on deceleration jerks graticule, unit m/s2；
Step 5：First vibration speed reduction marking is being set at the L positions of descending sharp turn easement curve end points upstream；
Step 6：Determine the setting spacing of adjacent deceleration jerks graticule, the n-th road and the (n+1)th road deceleration jerks graticule interval SnMeter
Calculation method is as follows：
Wherein：Δ t is the time interval of every twice horizontal line, and computational methods are：
Wherein：N is the number that deceleration jerks vibrate graticule；T is the total time by vibrating speed reduction marking；
Step 7：It is starting point with first deceleration jerks graticule, is set successively according to the spacing that the step 6 is calculated along direction of traffic
Put down one deceleration jerks graticule.
2. mountain highway according to claim 1 descending sharp turn long section vibrates the method to set up of speed reduction marking, its feature
It is that in the step 3, cornering ratio μ values are 0.05~0.06.
3. mountain highway according to claim 1 descending sharp turn long section vibrates the method to set up of speed reduction marking, its feature
It is in the step 4, to recognize vehicle velocity V when reading to start1Remove 85% speed in slope sharp turn section breakpoint upstream section.
4. the mountain highway descending sharp turn long section according to claim 1,2 or 3 vibrates the method to set up of speed reduction marking, its
It is characterised by, in step 6, is calculated with following formula by the total time t for vibrating speed reduction marking：
5. the mountain highway descending sharp turn long section according to claim 1,2 or 3 vibrates the method to set up of speed reduction marking, its
It is characterised by, the restricted speed in the step 2 is 85% speed.
6. the mountain highway descending sharp turn long section according to claim 1,2 or 3 vibrates the method to set up of speed reduction marking, its
It is characterised by, deceleration a of the vehicle traveling on deceleration jerks graticule takes 2.5m/s in the step 42。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063553.7A CN106780269A (en) | 2016-11-28 | 2016-11-28 | A kind of mountain highway descending sharp turn long section vibrates the method to set up of speed reduction marking |
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| CN201611063553.7A CN106780269A (en) | 2016-11-28 | 2016-11-28 | A kind of mountain highway descending sharp turn long section vibrates the method to set up of speed reduction marking |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111827026A (en) * | 2020-07-27 | 2020-10-27 | 郑州市交通规划勘察设计研究院 | Safe long and large downhill road section and vehicle cooling method |
| CN112991726A (en) * | 2021-02-08 | 2021-06-18 | 东南大学 | Method for setting road marking in urban expressway interweaving area |
| CN113436434A (en) * | 2021-06-25 | 2021-09-24 | 中科路恒工程设计有限公司 | Mountain trunk highway high-risk road section early warning system and method |
| CN113532425A (en) * | 2021-09-16 | 2021-10-22 | 西南交通大学 | Tunnel base station-free vehicle-road cooperative positioning method based on oscillation marked lines and mobile phone sensing |
| CN114530048A (en) * | 2022-04-24 | 2022-05-24 | 湖南车路协同智能科技有限公司 | Vehicle-road cooperative traffic control system and method for intersection |
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| CN104404899A (en) * | 2014-12-05 | 2015-03-11 | 武汉理工大学 | Highway vibrating decelerating facility |
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| CN102926337A (en) * | 2012-10-30 | 2013-02-13 | 东南大学 | Method for setting safe driving prompt marking line on inlet lane at signalized intersection |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827026A (en) * | 2020-07-27 | 2020-10-27 | 郑州市交通规划勘察设计研究院 | Safe long and large downhill road section and vehicle cooling method |
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| CN112991726A (en) * | 2021-02-08 | 2021-06-18 | 东南大学 | Method for setting road marking in urban expressway interweaving area |
| CN113436434A (en) * | 2021-06-25 | 2021-09-24 | 中科路恒工程设计有限公司 | Mountain trunk highway high-risk road section early warning system and method |
| CN113436434B (en) * | 2021-06-25 | 2022-05-27 | 中科路恒工程设计有限公司 | Mountain trunk highway high-risk road section early warning system and method |
| CN113532425A (en) * | 2021-09-16 | 2021-10-22 | 西南交通大学 | Tunnel base station-free vehicle-road cooperative positioning method based on oscillation marked lines and mobile phone sensing |
| CN113532425B (en) * | 2021-09-16 | 2021-11-30 | 西南交通大学 | Tunnel base station-free vehicle-road cooperative positioning method based on oscillation marked lines and mobile phone sensing |
| CN114530048A (en) * | 2022-04-24 | 2022-05-24 | 湖南车路协同智能科技有限公司 | Vehicle-road cooperative traffic control system and method for intersection |
| CN114530048B (en) * | 2022-04-24 | 2022-07-01 | 湖南车路协同智能科技有限公司 | Vehicle-road cooperative traffic control system and method for intersection |
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