CN103147371B - Design method of speed-control marking line based on edge rate for long and flat straight-line road segment of freeway - Google Patents
Design method of speed-control marking line based on edge rate for long and flat straight-line road segment of freeway Download PDFInfo
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- CN103147371B CN103147371B CN201310074255.8A CN201310074255A CN103147371B CN 103147371 B CN103147371 B CN 103147371B CN 201310074255 A CN201310074255 A CN 201310074255A CN 103147371 B CN103147371 B CN 103147371B
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Abstract
The invention provides a design method of a speed-control marking line based on the edge rate for a long and flat straight-line road segment of a freeway. The method comprises the following steps: collecting and analyzing the speed data of the long and flat straight-line road segment of the freeway; establishing a location vehicle speed distribution histogram and a cumulative frequency distribution diagram for the speed distribution of each data collection site of the long and flat straight-line road segment; finding out the location in which the data of the driving speed just exceeds the designed speed; setting the speed-control marking line from the location in which the data of the driving speed just exceed the designed speed, wherein the speed-control marking line is based on the edge rate according to the wundt illusion principle; and calculating the single cycle length of the marking line based on the edge rate according to 50% of the driving speed and the maximum speed. By setting the speed-control marking line, a driver can obviously enhance the perception to sense the speed and also sense the lane width to become narrow, so that the danger sense of the driver is improved when the driver drives on the straight-line road segment, i.e., the driver is induced to perform an active operation to control the driving speed. Therefore, the driving safety on the straight-line road segment of the freeway is improved.
Description
Technical field
The invention belongs to traffic safety technology field, being specifically related to a kind of control speed reticle design method for controlling speedway linear section Vehicle Speed of setting about from the Wundt illusion driver's Visual Perception Characteristics.
Background technology
Long flat line section road alignment is simple, thinks that broad view constantly accelerates in driver drives vehicle process.And driver exists compliance to the speed of a motor vehicle, driver, after a segment distance of running at high speed, there will be and underestimates phenomenon to the speed of a motor vehicle, and the longer low valuation of running time is higher, and this just makes to produce hypervelocity phenomenon in driving conditions.
Display in expressway traffic accident reason data statistics, the accident caused by driving over the speed limit, number is 893, accounts for total accident and plays several 9.21%; Death toll is 665 people, accounts for 10.56% of total death toll; Number of injured people is 1455 people, accounts for 10.59% of total number of injured people; Direct property loss 35485941 yuan, accounts for total direct property loss 11.23%.As can be seen here, driving over the speed limit is the main cause of motercycle accident, and adopting effective regulation speed method to carry out control to road speed is reduce traffic accident quantity, alleviates the requisite measure of traffic accident strength.
Mainly contain vibration deceleration strip, overspeed snapping and speed(-)limit sign etc. for the measure controlling high way super speed at present, but all there is defect definitely in above regulation speed method of forcing.Vibration is slowed down from driver's sense of touch, feels under the weather thus forces the reduction speed of a motor vehicle when allowing driver run at high speed by vibration, but may reduce along with the raising slowing effect of Vehicle damper performance, vibrates in addition also to cause vehicle and damages definitely; Afterwards overspeed snapping system punishes deterrence method, can not carry out obviate; Speed(-)limit sign is low in accordance with rate due to driver's, reduction of speed weak effect.This carries out forced controlling speed with regard to needing to introduce new theory and means urgently to vehicle, force the method for regulation speed must carry out from people-Che-Lu-environment comprehensive is collaborative, the more important thing is will from the speed of a motor vehicle control main body---driver takes measures to the intrinsic propesties that the speed of a motor vehicle controls.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of speedway based on edge rate long flat line section to control fast reticle design method, according to the principle of Wundt illusion, driver is significantly raised in the perception of speedway linear section driving process medium velocity, lane width perception significantly narrows, improve the dangerous criminal of driver in linear section driving conditions, induction driver active operation control lines vehicle speed, the traffic safety of Improving Expressway linear section.
The present invention for solving the problems of the technologies described above taked technical scheme is: fast reticle design method is controlled in a kind of speedway based on edge rate long flat line section, it is characterized in that: it comprises the following steps:
S1, selected waiting spread the long flat line section of speedway controlling fast graticule, gather the road speed data in the long flat line section of speedway;
The speed data that S2, analysis gather, sets up spot spe J distribution histogram and the cumulative frequency distribution map of each data collection point speed of a motor vehicle distribution of long flat line section;
S3, preset design speed, based on the spot spe J distribution histogram of each data collection point speed of a motor vehicle of long flat line section distribution, find out the position of road speed data just beyond design speed of collection, start to arrange the fast graticule of control according to the position of road speed data just beyond design speed; Described control speed graticule is the edge rate graticule of the principle according to Wundt illusion;
S4, the cumulative frequency distribution map distributed based on long flat line non-intersection speed, find out maximal rate V in the speed data of collection
maxwith 50% road speed V
50, according to the distributed area of the single Cycle Length L of 50% road speed and maximal rate edge calculation rate graticule, design formulas is:
（1）；
Get the maximum value in the L interval obtained in formula (1) as single Cycle Length;
If formula (1) without separating, then adopts 75% road speed V
75substitute 50% road speed V
50, get the maximum value in the L interval of acquisition as single Cycle Length;
If or without separating, then adopt 95% road speed V
95substitute maximal rate V
max, get the maximum value in the L interval of acquisition as single Cycle Length;
50% described road speed V
50for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 50% correspondence; 75% described road speed V
75for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 75% correspondence; 95% described road speed V
95for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 95% correspondence.
By such scheme, described step S1 specifically comprises 101) access speed collection section; 102) speed acquisition section is determined; 103) road speed data are gathered;
Wherein 102) be specially: three the velocity characteristic points defining long flat level according to road travel speed of a motor vehicle model, point centered by velocity characteristic point, chooses upstream and downstream 50m, upstream and downstream 100m respectively, and amounting to 12 road segment segment faces is speed data collection section;
103) be specially: utilize portable traffic flow point analyzer to be gathered by speed during each speed data collection section vehicle, each speed data collection section need gather more than 220 sample datas.
By such scheme, described control speed graticule carries out arranging form design form according to the principle of Wundt illusion and is: be [60 °, 150 °] between the angle transition region of edge rate graticule, depth-graded is 0.39 °.
By such scheme, described edge rate graticule is taked to be interrupted opening patten's design.
By such scheme, the mode that described edge rate graticule is interrupted opening is specially: by edge rate graticule point of intersection, arrange the opening of a 3cm in the process that both sides, track are launched successively every 10cm, the thickness of edge rate graticule is 15cm.
By such scheme, color reflective anti-slip material selected by described edge rate graticule paver, and color selects yellow.
By such scheme, described control speed graticule overall length is 600m.
Beneficial effect of the present invention is:
1, by the setting of the fast graticule of control, the speed perception of driver is significantly raised, and lane width perception significantly narrows, and improves the dangerous criminal of driver in linear section driving conditions, induction driver active operation control lines vehicle speed, the traffic safety of Improving Expressway linear section.
2, by Appropriate Sampling Quantity certificate, make to control the more reasonable of fast graticule setting.
3, pass through reticle design opening, thus reach the object not affecting the horizontal and vertical draining of speedway, ensure that the draining of speedway is smooth and easy.
4, controlling fast graticule arranges simply, and raw material economics cost is low, does not produce the influential material of environment.
Accompanying drawing explanation
The design flow diagram of Fig. 1 one embodiment of the invention.
Fig. 2 is that portable traffic flow point analyzer survey data lays schematic diagram.
Fig. 3 is the control speed graticule schematic diagram adopting the inventive method design.
Fig. 4 is the single graticule schematic diagram of the fast graticule of control.
In figure: 1-portable traffic flow point analyzer, 2-velocity characteristic point, 3-edge rate graticule, 4-edge rate graticule intersection point, 5-opening.
Detailed description of the invention
The present invention utilizes Wundt illusion effect (to refer to that the parallel lines of two scripts are by after one group of rhombus segmentation, article two, parallel lines look no longer parallel, seem to curve inwardly), (the edge rate) being changed driver's visual perception by the pavement strip of manual change's express highway pavement is referred to from driver's visual perception edge rate, at the fast edge rate graticule of the laying Novel control of the both sides, track entering speedway linear section, driver is significantly raised in the perception of speedway linear section driving process medium velocity, lane width perception significantly narrows, improve the dangerous criminal of driver in linear section driving conditions, induction driver active operation control lines vehicle speed, the traffic safety of Improving Expressway linear section.
The design flow diagram of Fig. 1 one embodiment of the invention, it comprises the following steps:
S1, selected waiting spread the long flat line section of speedway controlling fast graticule, gather the speed data in the long flat line section of speedway;
The speed data that S2, analysis gather, sets up spot spe J distribution histogram and the cumulative frequency distribution map of each data collection point speed of a motor vehicle distribution of long flat line section;
S3, preset design speed, based on the spot spe J distribution histogram of each data collection point speed of a motor vehicle of long flat line section distribution, find out the position of road speed data just beyond design speed of collection, start to arrange the fast graticule of control according to the position of road speed data just beyond design speed, controlling fast graticule overall length in the present embodiment is 600m; Described control speed graticule is the edge rate graticule of the principle according to Wundt illusion;
S4, the cumulative frequency distribution map distributed based on long flat line non-intersection speed, find out maximal rate V in the speed data of collection
maxwith 50% road speed V
50, according to the distributed area of the single Cycle Length L of 50% road speed and maximal rate edge calculation rate graticule, design formulas is:
（1）；
Get the maximum value in the L interval obtained in formula (1) as single Cycle Length;
If formula (1) without separating, then adopts 75% road speed V
75substitute 50% road speed V
50, get the maximum value in the L interval of acquisition as single Cycle Length;
If or without separating, then adopt 95% road speed V
95substitute maximal rate V
max, get the maximum value in the L interval of acquisition as single Cycle Length;
50% described road speed V
50for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 50% correspondence; 75% described road speed V
75for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 75% correspondence; 95% described road speed V
95for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 95% correspondence.
Step S1 specifically comprises 101) access speed collection section; 102) speed acquisition section is determined; 103) vehicle speed data is gathered.As shown in Figure 2,102) be specially: three the velocity characteristic points 2 defining long flat level according to road travel speed of a motor vehicle model, point centered by velocity characteristic point 2, chooses upstream and downstream 50m, upstream and downstream 100m respectively, and amounting to 12 road segment segment faces is speed data collection section; 103) be specially: utilize portable traffic flow point analyzer 1 pair of vehicle to be gathered by speed during each speed data collection section, each speed data collection section need gather more than 220 sample datas.In the present embodiment, speed when utilizing portable traffic flow point analyzer NC200 (Quixote Technology) to choose section to vehicle by each gathers.
Described control speed graticule carries out arranging form design form according to the principle of Wundt illusion: as shown in Figure 3, and the angle theta of edge rate graticule 3 adopts gradual manner to form Wundt illusion, and be [60 °, 150 °] between transition region, depth-graded is 0.39 °.
Described edge rate graticule is taked to be interrupted opening patten's design.In the present embodiment, single edge line design signal as shown in Figure 4, by edge rate graticule intersection point 4 place, arrange the opening 5 of a 3cm in the process that both sides, track are launched successively every 10cm, the thickness of edge rate graticule is 15cm.
Color reflective anti-slip material selected by edge rate graticule paver, and color selects yellow.
To have selected certain road speed limit in the present embodiment be Hang Rui speedway one director's flat line section of 100km/h is speed data collection section, speed data collection is selected fine, the non-traffic peak period, and in strict accordance with required by the present invention, in collection vehicle speed data process, eliminate other disturbing factors.Picking rate sample data is more than 6000.
According to the statistical analysis technique that inventive method second step is determined, utilize MATLAB7.0 software to carry out matching to the distribution of speed data collection, obtain the value of parameters in formula (1).
Be 100km/h and speed data matching distribution according to design speed, determine that the start position of long flat line section Novel control speed graticule is 258.45m place.
(1)
In formula:
,
,
Calculate L=2.35m according to formula (1), have solution.
The applicant, according to such scheme, can make average speed, 85% road speed, speed standard deviation reduce 7.59km/h respectively, 9.02km/h and 3.73km/h by carrying out experimental verification laying effect on road at Chinese Hang Rui speedway Hubei Section.Speedway linear section set up Novel control speed graticule and do not set up the fast graticule of Novel control under on two speedway roads experimental verification vehicle driving speed three major parameter comparing result data see the following form.
From upper table, this method regulation speed successful, from the speed of a motor vehicle control main body---driver takes measures to the intrinsic propesties that the speed of a motor vehicle controls, driver can be made to produce speed and to over-evaluate, thus the ACTIVE CONTROL speed of a motor vehicle.
Claims (7)
1. a fast reticle design method is controlled in the speedway long flat line section based on edge rate, it is characterized in that: it comprises the following steps:
S1, selected waiting spread the long flat line section of speedway controlling fast graticule, gather the road speed data in the long flat line section of speedway;
The speed data that S2, analysis gather, sets up spot spe J distribution histogram and the cumulative frequency distribution map of each data collection point speed of a motor vehicle distribution of long flat line section;
S3, preset design speed, based on the spot spe J distribution histogram of each data collection point speed of a motor vehicle of long flat line section distribution, find out the position of road speed data just beyond design speed of collection, start to arrange the fast graticule of control according to the position of road speed data just beyond design speed; Described control speed graticule is the edge rate graticule of the principle according to Wundt illusion;
S4, the cumulative frequency distribution map distributed based on long flat line non-intersection speed, find out maximal rate V in the speed data of collection
maxwith 50% road speed V
50, according to the distributed area of the single Cycle Length L of 50% road speed and maximal rate edge calculation rate graticule, design formulas is:
Get the maximum value in the L interval obtained in formula (1) as single Cycle Length;
If formula (1) without separating, then adopts 75% road speed V
75substitute 50% road speed V
50, get the maximum value in the L interval of acquisition as single Cycle Length;
If or without separating, then adopt 95% road speed V
95substitute maximal rate V
max, get the maximum value in the L interval of acquisition as single Cycle Length;
50% described road speed V
50for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 50% correspondence; 75% described road speed V
75for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 75% correspondence; 95% described road speed V
95for cumulative frequency distribution map middle rolling car speed data cumulative frequency reaches the road speed of 95% correspondence.
2. fast reticle design method is controlled in the speedway based on edge rate according to claim 1 long flat line section, it is characterized in that: described step S1 specifically comprises 101) access speed collection section; 102) speed acquisition section is determined; 103) road speed data are gathered;
Wherein 102) be specially: three the velocity characteristic points defining long flat level according to road travel speed of a motor vehicle model, point centered by velocity characteristic point, chooses upstream and downstream 50m, upstream and downstream 100m respectively, and amounting to 12 road segment segment faces is speed data collection section;
103) be specially: utilize portable traffic flow point analyzer to be gathered by speed during each speed data collection section vehicle, each speed data collection section need gather more than 220 sample datas.
3. fast reticle design method is controlled in the speedway based on edge rate according to claim 1 long flat line section, it is characterized in that: described control speed graticule is arranged according to the principle of Wundt illusion, design form is: be [60 ° between the angle transition region of edge rate graticule, 150 °], depth-graded is 0.39 °.
4. fast reticle design method is controlled in the long flat line of the speedway based on the edge rate section according to claim 1 or 3, it is characterized in that: described edge rate graticule is taked to be interrupted opening patten's design.
5. fast reticle design method is controlled in the speedway based on edge rate according to claim 4 long flat line section, it is characterized in that: the mode that described edge rate graticule is interrupted opening is specially: by edge rate graticule point of intersection, in the process that both sides, track are launched successively, arrange the opening of a 3cm every 10cm, the thickness of edge rate graticule is 15cm.
6. fast reticle design method is controlled in the long flat line of the speedway based on the edge rate section according to claim 1 or 2 or 3, it is characterized in that: color reflective anti-slip material selected by described edge rate graticule paver, and color selects yellow.
7. fast reticle design method is controlled in the long flat line of the speedway based on the edge rate section according to claim 1 or 2 or 3, it is characterized in that: described control speed graticule overall length is 600m.
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| CN106618612B (en) * | 2016-12-21 | 2020-11-10 | 长安大学 | Method for testing influence of traffic engineering measures on longitudinal distance perception capability of driver |
| CN107273616B (en) * | 2017-06-16 | 2020-10-27 | 中南大学 | High-speed railway adjacent line plane design method based on intersection point method |
| CN108385457B (en) * | 2018-03-15 | 2020-03-10 | 武汉理工大学 | Underground interchange intelligent vehicle speed control method based on edge rate |
| CN109145401B (en) * | 2018-07-31 | 2023-09-01 | 石家庄铁道大学 | Method, system and terminal equipment for calculating emission list of motor vehicle |
| CN109887308B (en) * | 2019-03-29 | 2021-05-04 | 武汉理工大学 | Long tunnel vehicle speed control system and method based on optical flow rate |
| CN110060474B (en) * | 2019-04-12 | 2021-09-24 | 武汉理工大学 | Tunnel dynamic edge rate intelligent speed control system and method |
| CN110164144B (en) * | 2019-05-10 | 2021-07-06 | 武汉理工大学 | Vision-guided urban tunnel vehicle acceleration control system and method |
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| CN102888816A (en) * | 2012-10-11 | 2013-01-23 | 长安大学 | Express way deceleration marked line and configuring method thereof |
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| CN102888816A (en) * | 2012-10-11 | 2013-01-23 | 长安大学 | Express way deceleration marked line and configuring method thereof |
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| Title |
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| 公路视错觉减速标线设计研究;颜先华;《中国优秀硕士学位论文全文数据库工程科技II辑》;20120115(第1期);C034-594 * |
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