CN105908641A - Method of inspecting mountain highway direction sign under dynamic environment - Google Patents
Method of inspecting mountain highway direction sign under dynamic environment Download PDFInfo
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- CN105908641A CN105908641A CN201610243315.8A CN201610243315A CN105908641A CN 105908641 A CN105908641 A CN 105908641A CN 201610243315 A CN201610243315 A CN 201610243315A CN 105908641 A CN105908641 A CN 105908641A
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- distance
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- fingerpost
- dynamic environment
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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
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a method of inspecting mountain highway direction signs under a dynamic environment; the method comprises the following steps: basic information collection, sign information grading inspection, single side sign position inspection, and multi-road side sign inspection; the method fully considers mountain highway landscape features and driver characteristics, and sets up a mountain highway direction sign inspection system, wherein the system ensures the traffic signs to provide continuous, networked, and complete information for drivers; the novel can inspect traffic sign positions under dynamic environment, can improve mountain highway traffic safety level and passing efficiency, thus maximumly reducing safety problems in the traffic sign design node, and converting management assurance into design assurance.
Description
Technical field
The invention belongs to the road signs in road field or traffic signs processing method, core under especially a kind of dynamic environment
The method looking into mountainous area highway fingerpost.
Background technology
The effect of mountainous area highway is to make quick, safe the arriving at of driver, all kinds of according to mountainous area highway
The effect of traffic signs, fingerpost rationally arrange can for be unfamiliar with road network driver provide instruct clearly, other
All kinds of marks are reasonably equipped with fingerpost, it is possible to ensure the safety that driver travels.Highways in mountain areas is public simultaneously
Road is also the assembly of all kinds of road alignment and structure, and mountainous area highway should be in conjunction with the road alignment residing for each section
All kinds of marks are rationally arranged by the characteristic of structure.Mountainous area highway road conditions is complicated, and sharp turn recurvation is numerous,
Bridge tunnel gathers, and long and steep downgrade and uphill way dense distribution bring great difficulty to the road conditions anticipation of driver.Mountain area is high
The speed great and particularly serious vehicle accident of highway takes place frequently.It addition, mountainous area highway is owing to being limited by factors such as landform,
Highway traffic safety mark is laid and is lacked specific standards and method, signs blocking, mark disappearance, and between mark, harmony is not enough,
Installation position can not meet the problems such as driving people's actual demand and generally exist.Traffic safety for mountainous area highway driver
Bring very big hidden danger.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect of prior art, it is provided that a kind of verification under dynamic environment
The method of mountainous area highway fingerpost.
The present invention solves that its technical problem be the technical scheme is that a kind of verification highways in mountain areas public affairs under dynamic environment
The method of road fingerpost, comprises the steps:
Step 1, essential information are collected, and described essential information includes:
Recognize reading distance (l), read flag information to the distance running through logo content from starting；
Judging distance (j), after running through mark, the distance of process when making the judgement taken action；
Action distance (L), from the distance taken action to when having taken action；
Distance of visual cognition (s), from starting the distance that reads flag information to flag information present position；
Future range (D), from flag information present position to the distance taken action a little；Run through the residing position of mark to mark
The distance (K) put；
Disappear distance (m), from end point to the distance of mark present position；And, the first speed (v of the nearly ramp location of row1)、
Arrive the second speed (v of ramp location2), number of track-lines (n), time (t needed for a change lane1), to recognize reading mark required
Time (t2), judge take measures required time (t3), and the spacing (P) between multiple trackside traffic signs；
Step 2, flag information classification are verified: it is believed that the significance level of breath sets up flag information staging hierarchy, build information
Level；
Step 3, mark position, single side are verified
Mark position, described single side is verified in step, and when there is not cart circumstance of occlusion, the action according to driver is special
Property and depending on recognize rule consider mark place position offering question；
Step 4, multiple roadside sign are verified
When the situation that cart blocks occurs, multiple trackside advance notice mark is set and is blocked by cart and to ask solving single roadside sign
Topic.
In a further embodiment, described step 2 is further:
Information is classified/classification is with the reasonability improved information in fingerpost and choose and level, and realize referring to completely
The smooth and easy linking of road information, it is simple to the road user being unfamiliar with road network arrives at smoothly；
Relatedness and the order of information at different levels, each side in every piece of fingerpost space of a whole page need to be considered when fingerpost information is chosen
To the destination information sum of instruction less than six, with guarantee information clear layer.
In a further embodiment, described step 3 farther includes:
Step 31, verification action distance
S=L+j+l-D=K+l；
J=v1t3；
D=L+j-K；
L=v1t2；
In formula, v1The first speed for the nearly ramp location of row；t1It it is the time needed for a change lane；N is number of track-lines；v2
For arriving the speed of ramp location；t2For recognizing the time read needed for mark；t3For judging to take measures the required time；A is
Deceleration, l is for recognizing reading distance, and L is action distance, and D is future range, and s is distance of visual cognition.
In a further embodiment, described step 3 is further for including:
Step S32, verification future range
Once change distance L needed for track3=v1t1；
Wherein, D is future range, and n is number of track-lines, v1For the first speed of the nearly ramp location of row, t1For once changing car
Time needed for road, v2For arriving the speed of ramp location, a is deceleration, and j is judging distance.
In a further embodiment, described step 3 farther includes:
Step 33, verify after running through mark to mark present position distance
To distance K of mark after running through information,
K=5.67h*
In formula, h*=K1K2K3H represents significant character height；H is actual characters height；K1For language correction factor；K2
For complexity of Chinese character correction factor；K3For road speed correction factor.
In a further embodiment, described step 4 is further:
Calculating the minimum spacing of each roadside sign, position and practical situation according to the 1st mark determine that remaining trackside is predicted
Indicate specifically arranges position；
The spacing that traffic signs is arranged is determined, i.e. with driver based on the universal law of drivers information processed
The complete previous mark of interpretation, presents later mark again after being adjusted driven vehicle running state；
Spacing (P) between traffic signs:
P=s+v1×t4+j-K
In formula, s is distance of visual cognition, v1For the first speed of the nearly ramp location of row, t4For default time interval, j for judge away from
From, K is the distance running through mark to mark present position.
Implement the present invention and have following technical effect that the dynamic kernel being carried out mountainous area highway mark by subsystem by pile No.
Looking into and optimize, the present invention, according to the exploration of existing theoretical method, combines closely with highways in mountain areas traffic safety situation again, makes
The setting of traffic signs, function or form all coordinate system with whole mountainous area highway traffic driving environmental system
One, improve mountainous area highway traffic safety level and traffic efficiency.Promote entering of traffic safety facilities designing technique level
One step improves, for mountainous area highway traffic signs from now on design, construct and the work such as management provides strong method
Support, and realize road information association completely in order, be connected smooth and easy, it is ensured that the information of fingerpost can correctly be guided and drive
Sail man-powered vehicle.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention.
Fig. 2 is that the single roadside sign of the present invention recognizes read procedure schematic diagram.
Fig. 3 and Fig. 4 is the disappearance distance schematic diagram of mark of the present invention respectively.
Fig. 5 is the minimum range analysis schematic diagram that the present invention arranges mark continuously.
Detailed description of the invention
The research long-term through inventor finds, the most both at home and abroad the research to traffic signs, outside being the most also confined to mark
See the aspects such as size, colour match, information expression form and facility structure.In actual design, the cloth of traffic signs
If mechanically indiscriminately imitating often Standard andRegulation, seldom for the distribution method of fingerpost and the special road of mountainous area highway
The cooperation distribution method of section variety classes traffic signs carries out special item, causes and indicates that the information provided to driver exists
Certain limitation, has influence on traffic signs and provides the seriality of information, internetworking and integrity to driver；And
Some research does not constitute the entirety of a system, and ratio is relatively decentralized.This is the most difficult during Traffic Signs Design is arranged also to be
A most important link, fails to solve the most always.Applicant thinks that Reasonable Arrangement traffic signs is to giving full play to
Traffic mark effect and the overall efficiency of mountainous area highway the most important.To this end, applicant proposed technology
Scheme.
As it is shown in figure 1, verify the overview flow chart of mountainous area highway fingerpost method under dynamic environment.
The method includes four steps carried out successively: step one, collects basic relevant information step, step 2, mark letter
Step, step 3 are verified in breath classification, and step, step 4 are verified in mark position, single side, and multiple roadside signs are verified；
Step one is the data collection steps of the inventive method, can provide data support by subsequent step.
Wherein, concrete following information is collected: recognize reading distance l from starting to read flag information to run through logo content；Read
After complete mark, should make the judgement taken action, this segment distance is referred to as judging distance j；From action limit to having taken action a little
Action distance L；Distance of visual cognition s；Future range D；Distance K of mark is arrived after running through flag information；End point is to mark
Disappearance distance m of will；Speed v of the nearly ramp location of row1；Time t needed for change lane1；Number of track-lines n；Arrive
Reach speed v of ramp location2；Recognize the time t read needed for mark2；Judge the time t taking measures required3；Actual characters
Highly h；Spacing P between multiple trackside traffic signss.
Flag information classification is verified in step, carries out classification verification according to collected fingerpost information.According to information
Significance level, sets up flag information staging hierarchy, builds level of information and first has to information is carried out classification with complete
It is apt to reasonability and level that in fingerpost, information is chosen, and realizes the smooth and easy linking of road information completely, it is simple to be not yet done
The road user knowing road network arrives at smoothly.Fingerpost information choose need to consider emphatically information at different levels association,
In order, in the moderate one piece of fingerpost space of a whole page of quantity of information, the destination information sum of all directions instruction is no more than six guarantors
Card level of information is clear, information classification.
Highway signs information grading table
Mark position, single side is verified in step, verifies mainly for there is not cart circumstance of occlusion, according to the row of driver
Dynamic characteristic and depending on recognize rule consider mark place position offering question, mountainous area highway outlet Warning Mark depending on recognizing process
And figure is set as shown in Figure 2.
Fig. 2 indicating, S, for installing roadside sign, is arranged near the starting point of mountainous area highway exit ramp deceleratuib lane.Logical
Often, driver depending on recognize have been found that at an A mark S, beginning read point B point start read indicate information, to running through a C
Point runs through logo content, and this segment distance is referred to as recognizing reading distance l.After running through mark, the judgement taken action should be made, this section away from
From referred to as judging distance j.Then, go into action, at this moment garage to action limit G from action limit G to having taken action a F's
Distance is referred to as action distance L.Driver in this segment distance must safety complete necessary operation swimmingly, as changing Lane,
Change direction, ramp to stop etc..From B point to mark S point distance be referred to as distance of visual cognition s, from C point to indicate S away from
To distance K of mark after being referred to as running through.If this distance K is shorter than distance m that disappears, it is meant that can not run through calmly mark
Will, in C point to disappearance distance range, driver cannot accurate interpretation key information, E is end point.
1) verification to action distance L
Distance of visual cognition s, judging distance j, future range D can be obtained according to principle shown in Fig. 2, recognize reading distance l and action distance L
It is respectively as follows:
S=L+j+l-D=K+l；
J=v1t3；
D=L+j-K；
L=v1t2；
Wherein: v1Speed for the nearly ramp location of row；t1It it is the time needed for a change lane, about 10s；N is track
Number；v2For arriving the speed of ramp location；t2For recognizing the time read needed for mark, generally 210～310s；t3For sentencing
Break and take measures the required time, generally 210～215s；A is deceleration, typically takes 175～115m/s2,
85% parking stall speed duration takes 110m/s2。
2) verification to future range D
Once change distance L needed for track3=v1t1≈ 120m (85% parking stall speed duration), so must being fulfilled for condition:
3) verify to distance K indicated after running through mark
As shown in Figure 3 and Figure 4, if regard high (112m) that d is driver arrives side of mark away from (trackside Installation Mark) or driver
Depending on high height (crown Installation Mark) above mark；θ is at end point and roadside sign or (general with the angle of crown mark
The θ angle of roadside sign is 15 °；Crown mark is 7 ° from the elevation angle theta of end point with mark top margin).
After running through information, distance K to mark is shorter than disappearing distance m, it is meant that can not run through calmly mark, C point arrives
In disappearance distance range, driver cannot accurate interpretation key information.So must being fulfilled for condition:
Therefore, traffic sign placement position must is fulfilled for formula (1), (2), (3) requirement.Answer to distance K indicated about after running through
Meet:
K=5.67h*(formula 4)
Wherein, h*=K1K2K3H represents significant character height；H is actual characters height；K1For language correction factor；K2
For complexity of Chinese character correction factor；K3For road speed correction factor.
Multiple roadside signs are verified in step, mainly for there is the situation that cart blocks, by arranging multiple trackside warning signs for approaching a station
Will solves single roadside sign by cart occlusion issue.If calculating the minimum spacing of each roadside sign, can be according to the 1st
What the position of individual mark and practical situation determined remaining trackside advance notice mark specifically arranges position, thus solves single traffic signs
The problem blocked by cart.The spacing that traffic signs is arranged, based on the universal law should process by drivers information, processed
It is determined, i.e. with the complete previous mark of driver's interpretation, after driven vehicle running state is adjusted, presents later again
It is masked as principle.For mountainous area highway, its time interval is to be advisable more than 2s.According to Fig. 5 distance relation, and
Taking time interval is 2.5s, show that between traffic signs, spacing P meets:
P=s+v1× 2.5+j-K=l+v1× 2.5+j (formula 5)
In a word, the present invention proposes a set of feasible, practical mountainous area highway Traffic Signs Design Optimizing Flow and method,
Subsystem carries out dynamically verifying and optimizing, according to the exploration of existing theoretical method, again of mountainous area highway mark by pile No.
Combine closely with highways in mountain areas traffic safety situation, make the setting of traffic signs, function or form all with whole mountain
District's freeway traffic environment system coordination, unification, improve mountainous area highway traffic safety level and traffic efficiency.
Promote the further raising of traffic safety facilities designing technique level, for mountainous area highway traffic signs from now on design,
The work such as construction, management provides strong method support, and realize road information association completely in order, be connected smooth and easy,
Guarantee that the information of fingerpost can correctly guide driver to drive a vehicle, farthest reduce in Traffic Signs Design link
Potential safety hazard, transfers " design ensures " to by " regulation ensures ".
Claims (6)
1. the method verifying mountainous area highway fingerpost under dynamic environment, it is characterised in that include walking as follows
Rapid:
Step 1, essential information are collected, and described essential information includes:
Recognize reading distance (l), read flag information to the distance running through logo content from starting；
Judging distance (j), after running through mark, the distance of process when making the judgement taken action；
Action distance (L), from the distance taken action to when having taken action；
Distance of visual cognition (s), from starting the distance that reads flag information to flag information present position；
Future range (D), from flag information present position to the distance taken action a little；Run through the residing position of mark to mark
The distance (K) put；
Disappear distance (m), from end point to the distance of mark present position；And, the first speed (v of the nearly ramp location of row1)、
Arrive the second speed (v of ramp location2), number of track-lines (n), time (t needed for a change lane1), to recognize reading mark required
Time (t2), judge take measures required time (t3), and the spacing (P) between multiple trackside traffic signs；
Step 2, flag information classification are verified: it is believed that the significance level of breath sets up flag information staging hierarchy, build information
Level；
Step 3, mark position, single side are verified
Mark position, described single side is verified in step, and when there is not cart circumstance of occlusion, the action according to driver is special
Property and depending on recognize rule consider mark place position offering question；
Step 4, multiple roadside sign are verified
When the situation that cart blocks occurs, multiple trackside advance notice mark is set and is blocked by cart and to ask solving single roadside sign
Topic.
2. the method verifying mountainous area highway fingerpost under dynamic environment as claimed in claim 1, its feature exists
In, described step 2 is further:
Information is classified/classification is with the reasonability improved information in fingerpost and choose and level, and realize referring to completely
The smooth and easy linking of road information, it is simple to the road user being unfamiliar with road network arrives at smoothly；
Relatedness and the order of information at different levels, each side in every piece of fingerpost space of a whole page need to be considered when fingerpost information is chosen
To the destination information sum of instruction less than six, with guarantee information clear layer.
3. the method verifying mountainous area highway fingerpost under dynamic environment as claimed in claim 1, its feature exists
In, described step 3 farther includes:
Step 31, verification action distance
S=L+j+l-D=K+l；
J=v1t3；
D=L+j-K；
L=v1t2；
In formula, v1The first speed for the nearly ramp location of row；t1It it is the time needed for a change lane；N is number of track-lines；v2
For arriving the speed of ramp location；t2For recognizing the time read needed for mark；t3For judging to take measures the required time；A is
Deceleration；L is for recognizing reading distance；L is action distance；D is future range；S is distance of visual cognition.
4. the method verifying mountainous area highway fingerpost under dynamic environment as claimed in claim 1, its feature exists
In, described step 3 is further for including:
Step S32, verification future range
Once change distance L needed for track3=v1t1；
Wherein, D is future range, and n is number of track-lines, v1For the first speed of the nearly ramp location of row, t1For once changing car
Time needed for road, v2For arriving the speed of ramp location, a is deceleration, and j is judging distance.
5. the method verifying mountainous area highway fingerpost under dynamic environment as claimed in claim 1, its feature exists
In, described step 3 farther includes:
Step 33, verify after running through mark to mark present position distance
To distance K of mark after running through information,
K=5.67h*
In formula, h*=K1K2K3H represents significant character height；H is actual characters height；K1For language correction factor；K2
For complexity of Chinese character correction factor；K3For road speed correction factor.
6. the method verifying mountainous area highway fingerpost under dynamic environment as claimed in claim 1, its feature exists
In, described step 4 is further:
Calculating the minimum spacing of each roadside sign, position and practical situation according to the 1st mark determine that remaining trackside is predicted
Indicate specifically arranges position；
The spacing that traffic signs is arranged is determined, i.e. with driver based on the universal law of drivers information processed
The complete previous mark of interpretation, presents later mark again after being adjusted driven vehicle running state；
Spacing (P) between traffic signs:
P=s+v1×t4+j-K
In formula, s is distance of visual cognition, v1For the first speed of the nearly ramp location of row, t4For default time interval, j for judge away from
From, K is the distance running through mark to mark present position.
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| JP4099323B2 (en) * | 2001-07-27 | 2008-06-11 | 積水樹脂株式会社 | Attaching method of snow cover for road sign, snow cover for road sign and road sign |
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| CN101727743A (en) * | 2009-11-27 | 2010-06-09 | 东南大学 | Method for setting roadside speed limit signs on ordinary road |
| CN101818470A (en) * | 2010-04-20 | 2010-09-01 | 长安大学 | Method for optimally setting expressway traffic safety facilities |
| CN105002839A (en) * | 2015-06-15 | 2015-10-28 | 武汉理工大学 | Continuous highway downslope section vision speed control method and system |
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2016
- 2016-04-19 CN CN201610243315.8A patent/CN105908641A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4099323B2 (en) * | 2001-07-27 | 2008-06-11 | 積水樹脂株式会社 | Attaching method of snow cover for road sign, snow cover for road sign and road sign |
| CN101240527A (en) * | 2007-03-23 | 2008-08-13 | 天津国锐工程实验检测有限公司 | Method for setting traffic sign used for optimizing freeway net |
| CN101727743A (en) * | 2009-11-27 | 2010-06-09 | 东南大学 | Method for setting roadside speed limit signs on ordinary road |
| CN101818470A (en) * | 2010-04-20 | 2010-09-01 | 长安大学 | Method for optimally setting expressway traffic safety facilities |
| CN105002839A (en) * | 2015-06-15 | 2015-10-28 | 武汉理工大学 | Continuous highway downslope section vision speed control method and system |
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Application publication date: 20160831 |