CN104464319A - Temporary traffic control method used for environment that part lanes are enclosed - Google Patents
Temporary traffic control method used for environment that part lanes are enclosed Download PDFInfo
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- CN104464319A CN104464319A CN201410768351.7A CN201410768351A CN104464319A CN 104464319 A CN104464319 A CN 104464319A CN 201410768351 A CN201410768351 A CN 201410768351A CN 104464319 A CN104464319 A CN 104464319A
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- 238000010276 construction Methods 0.000 claims abstract description 21
- 238000009941 weaving Methods 0.000 claims abstract description 21
- 230000037250 Clearance Effects 0.000 claims description 14
- 230000035512 clearance Effects 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000033228 biological regulation Effects 0.000 claims description 7
- 230000005526 G1 to G0 transition Effects 0.000 claims description 6
- 230000000875 corresponding Effects 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 210000000474 Heel Anatomy 0.000 claims description 4
- 229920002892 amber Polymers 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 210000003205 Muscles Anatomy 0.000 claims description 3
- 230000002708 enhancing Effects 0.000 claims description 3
- 239000002253 acid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 238000011030 bottleneck Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
Abstract
The invention relates to a temporary traffic control method used for an environment that part lanes are enclosed. The temporary traffic control method includes the steps of (1) warning prompt, wherein a traffic warning sign that the front lane is narrowed is arranged at the position 300 m or 150 m before a waving section, and a sign that lane changing is prohibited is arranged at the same time, (2) lane management, wherein the sign that the lane changing is prohibited is arranged at the position 100 m before the weaving section to stop vehicles from changing lanes randomly at the weaving section, (3) signal lamp arrangement, wherein signal lamps are arranged 50 m before the weaving section, independent signal lamps are adopted to control all lanes respectively and the group number of the signal lamps is equal to the number of original lanes, (4) signal lamp control, wherein at the same moment, the number of releasing lanes is the same as that of the lanes remaining being used in a working region, and the lane releasing principle is the same as that of conventional signal lamps. By the adoption of the method, the weaving section where occupying-road construction is conducted or the number of the lanes is reduced can be effectively managed and controlled, through efficiency is improved, traffic conflicts are reduced, and the method is easy to implement.
Description
Technical field
The present invention relates to traffic administration, particularly relate to a kind of for the temporary traffic control method under part Lane Closed environment.
Background technology
In recent years, China city and highway obtain high speed development, and vehicle guaranteeding organic quantity constantly increases, and traffic safety and congestion problems receive much concern always.In road traffic stable development, various newly-built, renovating and enlarging project spreads over each large, medium and small city, the whole nation, when carrying out construction, needs to carry out partially enclosed to existing road, i.e. road occupying construction; In addition, the road traffic accident moment all occurs at city and highway, and many traffic hazards take one or more strands of track, needs the long period could site clearing, also needs to carry out Seal treatment to track.Road construction and accident treatment all need temporary enclosed track for a long time, cause part Lane Closed, and vehicle needs staggered current just by Lane Closed district, not only affects traffic traffic efficiency, and very easily causes scratch accident.
Owing to causing the existence of Bottle Neck Road under road construction or accident treatment operation area part Lane Closed environment, the vehicle before arrival operation area must carry out lane changing, the change that vehicle lane-changing can cause vehicle flowrate to distribute on track.When driver is close to operation area, in closed track, the up vehicle sailed starts to opening track transfer, thus causes the redistribution of the volume of traffic on different track, and approach construction district is got in closed track, and the vehicle of traveling is fewer.Meanwhile, due to the continuous remittance of vehicle, volume of traffic showed increased on open track, the speed of a motor vehicle reduces, and wagon flow gets muddled phenomenon.And in Countries or area, driver can not initiatively modestly decline when staggered current, on the contrary or rob row and jump a queue, make staggered FOH traffic efficiency lower, scratch Frequent Accidents.
Vehicle is when construction area travels, and car speed reduces causes vehicle density to increase, vehicle lane-changing and and subtend track between interference cause the traffic conflict of construction area.Traffic conflict herein mainly contains three kinds: conflict in interflow, by conflicting and shunting conflict.What interflow, shunting conflict resulted from vehicle in construction section upstream transition district and downstream transition district respectively changes behavior, is the traffic conflict that construction area is main; What then result from construction section operation area vehicle by conflicting changes behavior.Because traffic conflict, traffic flow are disorderly, cause traffic efficiency to decline, and very easily initiation wiping such as to touch at the traffic hazard.
Present stage, the traffic control mode that China's temporary construction closes track interwoven region generally reminds driver slow down and drive with caution by prompting or warning sign board, and does not have concrete control measures to the traffic conflict at interflow place; And traffic accident treatment is also only with road cone cylinder isolation operation area, there is no interim traffic control measure yet.Under this non-signal control, naturally staggered current condition, the traffic efficiency of operation area is very low, and total traffic efficiency maintains the traffic capacity of through lane well below downstream.Therefore, be necessary to propose feasible temporary traffic control method to the situation of road construction or accident treatment operation area part Lane Closed.
For interwoven region traffic administration aspect, also there is no corresponding patent.Patent " large-scale Pivot Interchange interwoven region optimum distance defining method " (CN103225246A) etc. relates to the length calculation method of interwoven region, but does not propose corresponding measure with regard to the traffic administration scheme of interwoven region.
The present invention proposes to adopt temporary traffic signal to manage road occupying construction road interwoven region, signalization lamp is set before the interwoven region caused because of Lane Closed, every track all has corresponding signal lamp group to control it, is furnished with auxiliary sign board simultaneously and is described the track that each signal lamp controls.In addition, corresponding prompting, warning notice are set, forbid vehicle random changing Lane in 100m before interwoven region, electronic police is set simultaneously and carries out monitoring canalization is again carried out to roadmarking in 100m before interwoven region.Controlled by signal, the traffic efficiency of interwoven region under raising part Lane Closed environment, and reduce traffic hazard.
Summary of the invention
The technical problem to be solved in the present invention is for defect of the prior art, provides a kind of for the temporary traffic control method under part Lane Closed environment.
The technical solution adopted for the present invention to solve the technical problems is: a kind of for the temporary traffic control method under part Lane Closed environment, comprising:
1) early warning: 300m, 150m place arranges the traffic warning mark of " front Lane Narrows " before weaving section, arranges " forbidding that conversion is changed " mark simultaneously;
2) Lane regulation: 100m arranges and forbids changing Lane mark before weaving section, forbids that vehicle arbitrarily changes at this place;
3) signal lamp is arranged: 50m signalization lamp before weaving section, adopts independent signal lamp to control respectively each track; The group number of signal lamp is equal with former number of track-lines;
4) Signalized control: in synchronization, it is identical that number of track-lines and the operation area of clearance also retain current number of track-lines; The clearance principle in track is consistent with normal signal lamp, and namely red light represents that no through traffic in this track, green light represents that this track allows to pass through, and amber light is transition.
By such scheme, in step 4), Signalized control is in clearance choosing lane, not cause conflict for principle, is not namely generally let pass in occupied track and the track be adjacent simultaneously.
By such scheme, in step 4), Signalized control adopts following duration control method:
For the part Lane Closed situation of short time, can be that stationary phase controls by signal setting, the green time in each track be all equal in principle, and temporary signal lamp can be withdrawn after removing by operation area, recovers road previous status; Short time is the time be shorter than one day;
For long part Lane Closed situation, stationary phase can be set in the peak flow period and control, staggered clearance, and when vehicle flowrate is less, temporary signal lamp can be set to yellow sudden strain of a muscle pattern, wagon flow is freely imported; It is long-time for the time was more than one day.
By such scheme, in described step 3), signal lamp adopts the hollow cast iron base of iron heel type.
By such scheme, in described step 3), signal lamp is arranged on corresponding track overcentre.
By such scheme, the power acquisition portable power source of described step 3) temporary traffic signal lamp.
By such scheme, for long construction in described Lane regulation, canalization again can be carried out to interwoven region traffic lane line, be solid line by 100m inside lane graticule canalization before stop line, forbid the careless changing Lane of vehicle.
By such scheme, also comprise police car on-site law-enforcing or electronic monitoring in described Lane regulation and to enforce the law the supervision of law enforcement combined, random changing Lane and the vehicle of not observing traffic signals are captured or automatically identified.
The beneficial effect that the present invention produces is: adopt the inventive method, effectively can manage and controls, improve traffic efficiency, reduce traffic conflict, and implementation method is simply easy to operation the interwoven region section that road occupying construction or number of track-lines reduce.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is that the present invention is for the temporary traffic control method schematic diagram under part Lane Closed environment;
Fig. 2 is that temporary traffic of the present invention controls traffic sign placement schematic diagram before and after operation area;
Fig. 3 is the plant bottom case schematic diagram of site traffic control signal lamp of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As depicted in figs. 1 and 2, temporary traffic control method proposed by the invention, is mainly used in two tracks and above road and the situation of part Lane Closed.Be positioned over terrain vehicle diatom place, signal lamp controls respectively to each track temporarily, at a time, allows current number of track-lines identical with the remaining number of track-lines of weaving section.Each signal lamp is all installed according to latest national standards, tries one's best at track overcentre, to facilitate driver's identification and understanding in the position that signal lamp is installed.Comprise:
1) early warning: due to part Lane Closed, needs to control staggered passing through by signal, relates to and stop and possible lane change, therefore will reset weaving section reminder flag.The present invention proposes 300m, 150m place before weaving section and arranges the traffic warning mark of " front Lane Narrows " and " front Lane Narrows " respectively, and before weaving section, 150m place arranges " forbidding that conversion is changed " mark simultaneously.Turn to and routing owing to not relating to, therefore unnecessary setting is according to the prompting mark of lanes.
2) Lane regulation: the vehicle in order to avoid current lane queuing forwards another track to and causes confusion when adjacent lane is let pass, be defined within the scope of distance signal control 100m and forbid changing Lane, go out to arrange to forbid that the temporary sign of changing Lane realizes by 100m before temporary signal; Construction is caused to the situation in the temporary enclosed track of long period, in situation with good conditionsi, advise that to dotted line traffic lane line canalization original in 100m before weaving section be solid line, forbid vehicle random changing Lane within the scope of this.
Again canalization is carried out to the graticule of weaving space, comprising: 1, the construction of long period, under condition with good conditionsi, execute before weaving section and draw vehicle stopping graticule; 2, the construction of long period, under condition with good conditionsi, is solid line to track segmentation graticule canalization original in 100m before weaving section, forbids that vehicle is in this scope inner conversion track; 3, the construction of long period, under condition with good conditionsi, indicates lane number at pavement of road, and ground mark is divided into 2-3 group; Design speed is not less than 40km/h section and arranges 3 groups, wherein arranges 1 group before stop line, and cut-off rule canalization top, track arranges 1 group, and track cut-off rule canalization middle-end arranges 1 group; Design speed is less than 40km/h section and arranges 2 groups, before being separately positioned on cut-off rule canalization top, track and stop line.
The interim control program that the present invention proposes can promote the traffic capacity of interwoven region before Lane Closed greatly, also can reduce the conflict collision of vehicle, therefore need strict implement.Propose police car on-site law-enforcing or electronic monitoring enforce the law the means combined, to random changing Lane and do not capture in accordance with the vehicle of traffic signals or automatically identify.
3) signal lamp is arranged: 50m signalization lamp before weaving section, adopts independent signal lamp to control respectively each track, at a time, allows current number of track-lines identical with the remaining number of track-lines of weaving section; Because signal lamp of the present invention controls respectively to each track, the therefore group number of signal lamp equal with former number of track-lines (such as, original path is unidirectional two tracks, and temporary signal lamp has two groups).In synchronization, it is identical that number of track-lines and the operation area of clearance also retain current number of track-lines, and if weaving section bottleneck number of track-lines is 2, then each number of track-lines of letting pass is 2; The clearance principle in track is consistent with normal signal lamp, and namely red light represents that no through traffic in this track, green light represents that this track allows to pass through, and amber light is transition.In clearance choosing lane, not cause conflict for principle, namely generally do not let pass in occupied track and the track be adjacent simultaneously.As occupied in unidirectional 3 three-lane road outermost tracks, then 1,3 tracks can be selected to let pass or let pass in 2,3 tracks when letting pass simultaneously simultaneously, but 1,2 tracks should not be selected simultaneously to let pass.All signal lamps are all installed according to new national standard (GB 14887-2011), namely three lamp holders are comprised, and be followed successively by red, yellow, and green from top to bottom, should use cantilever lever during installation and ensure that signal lamp vertical projection is at every bar track middle position as far as possible, the driver be convenient in different track identifies and understands.
4) Signalized control: in synchronization, it is identical that number of track-lines and the operation area of clearance also retain current number of track-lines; The clearance principle in track is consistent with normal signal lamp, and namely red light represents that no through traffic in this track, green light represents that this track allows to pass through, and amber light is transition;
For the part Lane Closed situation of short time (as several hours), can be that stationary phase controls by signal setting, the green time in each track be all equal in principle, and temporary signal lamp can be withdrawn after removing by operation area, recovers road previous status; For the part Lane Closed situation of long-time (as reaching many days), stationary phase can be set in the peak flow period and control, staggered clearance, and when vehicle flowrate is less, temporary signal lamp can be set to yellow sudden strain of a muscle pattern, wagon flow is freely imported.
Further, the temporary traffic signal control method proposed due to the present invention is used for the management of interim site traffic, does not generally possess Power Supplies Condition, though have power supply be also difficult in the road between lay, therefore adopt the scheme of portable power source.Recommend the power supply plan adopting lead-acid battery and photovoltaic solar to combine.For only for the system that temporary signal in a few hours controls, recommend only to adopt lead-acid accumulator to power, be finished rear timely charging; For the temporary signal control system exceeding a couple of days, the scheme that suggestion adopts on-the-spot Reproduceable electricity to combine with accumulator, to ensure work on duty in 24 hours.
Field apparatus base designs.Because scene cannot be protected, and require that base is little as far as possible, therefore this patent proposes the hollow cast iron base scheme adopting iron heel type, what on the one hand iron heel type can reduce that vehicle heads on is sharp-pointed, just in case collision reduces the damage to vehicle and base, cast iron can increase base weight on the other hand, ensures stable as far as possible.In addition cored iron style of the shoe base can prevent lead-acid battery in inside, space utilization on the one hand, and lead-acid battery weight can increase base stability on the other hand.Field apparatus base is specifically shown in Fig. 3.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (8)
1., for the temporary traffic control method under part Lane Closed environment, it is characterized in that, comprising:
1) early warning: 300m, 150m place arranges the traffic warning mark of " front Lane Narrows " before weaving section, arranges " forbidding that conversion is changed " mark simultaneously;
2) Lane regulation: 100m arranges and forbids changing Lane mark before weaving section, forbids that vehicle arbitrarily changes at this place;
3) signal lamp is arranged: 50m signalization lamp before weaving section, adopts independent signal lamp to control respectively each track; The group number of signal lamp is equal with former number of track-lines;
4) Signalized control: in synchronization, it is identical that number of track-lines and the operation area of clearance also retain current number of track-lines; The clearance principle in track is consistent with normal signal lamp, and namely red light represents that no through traffic in this track, green light represents that this track allows to pass through, and amber light is transition.
2. temporary traffic control method according to claim 1, is characterized in that, in step 4), Signalized control is in clearance choosing lane, not cause conflict for principle, is not namely generally let pass in occupied track and the track be adjacent simultaneously.
3. temporary traffic control method according to claim 1, is characterized in that, in step 4), Signalized control adopts following duration control method:
1) for the part Lane Closed situation of short time, can be that stationary phase controls by signal setting, the green time in each track be all equal in principle, and temporary signal lamp can be withdrawn after removing by operation area, recovers road previous status; Short time is the time be shorter than one day;
2) for long part Lane Closed situation, stationary phase can be set in the peak flow period and control, staggered clearance, and when vehicle flowrate is less, temporary signal lamp can be set to yellow sudden strain of a muscle pattern, wagon flow is freely imported; It is long-time for the time was more than one day.
4. temporary traffic control method according to claim 1, is characterized in that, in described step 3), signal lamp adopts the hollow cast iron base of iron heel type.
5. temporary traffic control method according to claim 1, is characterized in that, in described step 3), signal lamp is arranged on corresponding track overcentre.
6. temporary traffic control method according to claim 1, is characterized in that, the power acquisition portable power source of described step 3) temporary traffic signal lamp.
7. temporary traffic control method according to claim 1, it is characterized in that, for long construction in described Lane regulation, canalization again can be carried out to interwoven region traffic lane line, be solid line by 100m inside lane graticule canalization before stop line, forbid the careless changing Lane of vehicle.
8. temporary traffic control method according to claim 1, it is characterized in that, also comprise police car on-site law-enforcing or electronic monitoring in described Lane regulation to enforce the law the supervision of law enforcement combined, random changing Lane and the vehicle of not observing traffic signals are captured or automatically identified.
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| CN201410768351.7A CN104464319A (en) | 2014-12-12 | 2014-12-12 | Temporary traffic control method used for environment that part lanes are enclosed |
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Cited By (14)
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| CN104778847A (en) * | 2015-04-09 | 2015-07-15 | 南京全司达交通科技有限公司 | Method for controlling traffic signals under closed condition of lane on outermost side of multi-lane highway |
| CN104778846A (en) * | 2015-03-26 | 2015-07-15 | 南京邮电大学 | Computer-vision-based traffic light control method |
| CN104778844A (en) * | 2015-04-24 | 2015-07-15 | 辽宁省交通规划设计院 | Traffic signal control method of lane borrowing passing in closed construction area of highway |
| WO2017215210A1 (en) * | 2016-06-17 | 2017-12-21 | Boe Technology Group Co., Ltd. | System and method for traffic redirection |
| CN108004971A (en) * | 2017-11-08 | 2018-05-08 | 深圳市晓控通信科技有限公司 | It is a kind of that the tunnel monitoring equipment of automatic shunt is had the function of based on Internet of Things |
| CN108239898A (en) * | 2018-01-10 | 2018-07-03 | 中铁二十二局集团第五工程有限公司 | A kind of Mountainous City transit centre construction period multilevel traffic method for organizing |
| CN108806242A (en) * | 2017-04-27 | 2018-11-13 | 沃尔沃汽车公司 | The determination of road engineering provincial characteristics group |
| CN109326121A (en) * | 2017-07-31 | 2019-02-12 | 交通运输部公路科学研究所 | Highway construction area upstream vehicle cocurrent control method |
| CN110356403A (en) * | 2018-04-09 | 2019-10-22 | 丰田自动车株式会社 | Vehicle travel control system |
| CN111583674A (en) * | 2020-03-23 | 2020-08-25 | 南京慧尔视智能科技有限公司 | Interleaved road section and method for improving traffic efficiency thereof through radar tracking control |
| CN111951571A (en) * | 2020-07-06 | 2020-11-17 | 江苏大学 | System and method for dredging congested vehicles on road section under traffic accident |
| CN112396840A (en) * | 2020-11-19 | 2021-02-23 | 上海海事大学 | Traffic signal control method suitable for highway accident handling |
| CN112523018A (en) * | 2020-11-30 | 2021-03-19 | 武汉理工大学 | Urban and rural joint main road subway construction road section induction system |
| CN113436444A (en) * | 2021-05-08 | 2021-09-24 | 山东交通学院 | Traffic signal control method for passage by lane in closed construction area of expressway |
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Cited By (19)
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| CN104778846A (en) * | 2015-03-26 | 2015-07-15 | 南京邮电大学 | Computer-vision-based traffic light control method |
| CN104778847A (en) * | 2015-04-09 | 2015-07-15 | 南京全司达交通科技有限公司 | Method for controlling traffic signals under closed condition of lane on outermost side of multi-lane highway |
| CN104778844A (en) * | 2015-04-24 | 2015-07-15 | 辽宁省交通规划设计院 | Traffic signal control method of lane borrowing passing in closed construction area of highway |
| WO2017215210A1 (en) * | 2016-06-17 | 2017-12-21 | Boe Technology Group Co., Ltd. | System and method for traffic redirection |
| US10490067B2 (en) | 2016-06-17 | 2019-11-26 | Boe Technology Group Co., Ltd. | System and method for traffic redirection |
| CN108806242A (en) * | 2017-04-27 | 2018-11-13 | 沃尔沃汽车公司 | The determination of road engineering provincial characteristics group |
| CN108806242B (en) * | 2017-04-27 | 2021-09-24 | 沃尔沃汽车公司 | Determination of a set of road engineering regional characteristics |
| CN109326121B (en) * | 2017-07-31 | 2020-10-27 | 交通运输部公路科学研究所 | Upstream vehicle confluence control method for expressway construction area |
| CN109326121A (en) * | 2017-07-31 | 2019-02-12 | 交通运输部公路科学研究所 | Highway construction area upstream vehicle cocurrent control method |
| CN108004971A (en) * | 2017-11-08 | 2018-05-08 | 深圳市晓控通信科技有限公司 | It is a kind of that the tunnel monitoring equipment of automatic shunt is had the function of based on Internet of Things |
| CN108239898A (en) * | 2018-01-10 | 2018-07-03 | 中铁二十二局集团第五工程有限公司 | A kind of Mountainous City transit centre construction period multilevel traffic method for organizing |
| CN110356403A (en) * | 2018-04-09 | 2019-10-22 | 丰田自动车株式会社 | Vehicle travel control system |
| CN111583674A (en) * | 2020-03-23 | 2020-08-25 | 南京慧尔视智能科技有限公司 | Interleaved road section and method for improving traffic efficiency thereof through radar tracking control |
| CN111951571A (en) * | 2020-07-06 | 2020-11-17 | 江苏大学 | System and method for dredging congested vehicles on road section under traffic accident |
| CN111951571B (en) * | 2020-07-06 | 2022-05-17 | 江苏大学 | System and method for dredging congested vehicles on road section under traffic accident |
| CN112396840A (en) * | 2020-11-19 | 2021-02-23 | 上海海事大学 | Traffic signal control method suitable for highway accident handling |
| CN112523018A (en) * | 2020-11-30 | 2021-03-19 | 武汉理工大学 | Urban and rural joint main road subway construction road section induction system |
| CN113436444A (en) * | 2021-05-08 | 2021-09-24 | 山东交通学院 | Traffic signal control method for passage by lane in closed construction area of expressway |
| CN113436444B (en) * | 2021-05-08 | 2022-07-15 | 山东交通学院 | Traffic signal control method for passage by lane in closed construction area of expressway |
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