Non-interruption traffic comprehensive construction method for urban road in-situ maintenance and reconstruction

Abstract

The invention discloses an uninterrupted traffic comprehensive construction method for urban road in-situ maintenance and reconstruction, which relates to the field of road maintenance and comprises the following steps: dividing a road to be maintained into a plurality of continuous construction sections, and dividing the road into a first half range and a second half range in each construction section; according to the real-time traffic flow state of the road, dynamically managing the spatial layout of a construction working plane and the time arrangement of construction procedures; according to the traffic-uninterrupted comprehensive construction method for urban road in-situ maintenance and reconstruction, the road to be maintained is divided into a plurality of continuous construction sections, and the interior of each construction section is further divided into a first half range and a second half range, so that refined division and alternate operation of a construction area are realized; therefore, the effect of orderly promoting the maintenance engineering on the premise of not interrupting the traffic is achieved, and the effects of flexibly utilizing the road space resources and reducing the interference to the traffic flow to the greatest extent by dynamically managing the spatial layout of the construction working surface according to the real-time traffic flow state of the road are achieved.

Description

Technical Field

[0001] This invention relates to road maintenance technology, specifically to a comprehensive construction method for in-situ maintenance and reconstruction of urban roads without disrupting traffic. Background Technology

[0002] With the acceleration of urbanization, urban roads, as the arteries of urban transportation, have become a key link in ensuring urban operational efficiency and residents' quality of life through their maintenance and renovation. In recent years, with the rapid development of materials science, information technology, and intelligent transportation systems, urban road maintenance and renovation technologies have made significant progress. Traditional road maintenance methods, such as full-width or half-width closure construction, have solved the problem of road damage to some extent, but they often lead to traffic interruption during construction, causing regional traffic congestion and affecting the normal operation of the city. To address this challenge, the industry has gradually developed a variety of construction strategies aimed at reducing traffic interference, such as nighttime construction and the construction of temporary access roads. However, these methods are either limited by the construction time window or increase construction costs and safety risks, failing to fundamentally solve the contradiction between construction and traffic.

[0003] However, traditional methods often use long, enclosed sections for dividing construction phases, and the boundaries of the work surface are fixed as straight lines perpendicular to the road direction. This limits the working space of construction machinery, reduces construction efficiency, and, due to the lack of accurate perception and dynamic response mechanisms for real-time traffic flow, it is difficult to flexibly adjust the formulation and execution of construction plans according to traffic conditions. This leads to the forced interruption or slowdown of construction activities during peak traffic hours, which in turn prolongs the overall construction period and increases the negative impact on urban traffic. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a comprehensive construction method for in-situ maintenance and reconstruction of urban roads without interrupting traffic, in order to solve the problems in the prior art where the construction section is too long and the boundary of the work surface is fixed, resulting in low construction efficiency. At the same time, the lack of accurate perception and dynamic response mechanism for real-time traffic flow status makes it difficult to efficiently complete road repair while ensuring uninterrupted traffic.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a comprehensive construction method for in-situ maintenance and reconstruction of urban roads without disrupting traffic, comprising the following steps:

[0006] The road to be repaired is divided into multiple consecutive construction sections, and within each construction section, the road is further divided into the first half and the second half.

[0007] Based on real-time road traffic flow, dynamically manage the spatial layout of construction work areas and the time arrangement of construction procedures;

[0008] The dynamic management of the construction work area layout includes: during periods of low traffic flow, adjusting the boundary of the work area from a shape perpendicular to the road direction to a diagonal or sawtooth shape to temporarily expand the mechanical work space to the opposite lane area; during periods of high traffic flow, restoring the boundary of the work area to a shape perpendicular to the road direction.

[0009] The dynamic management of construction process scheduling includes: controlling construction machinery and personnel to carry out construction in an interruptible micro-circulation operation mode based on real-time traffic flow status; starting micro-circulation operation when traffic flow status meets the first condition; and stopping micro-circulation operation and withdrawing when traffic flow status meets the second condition.

[0010] Furthermore, when the boundary of the work surface is adjusted to one of the shapes of a diagonal line or a sawtooth shape, temporary traffic lights and personnel are used to guide vehicles in the opposite lane to move slowly.

[0011] Furthermore, the micro-circulation operation includes any one of the following: preliminary compaction after asphalt paving, surveying and setting out, local milling, and curbstone installation.

[0012] Furthermore, the real-time traffic flow status is achieved through a traffic flow detection device installed upstream of the construction area, which includes one of the following: inductive loop, camera, and radar.

[0013] Furthermore, the instructions to start and stop the microcirculation operation are issued wirelessly.

[0014] Furthermore, when the boundary of the work surface is adjusted to one of the shapes of oblique lines and sawtooth shapes, at least one unobstructed lane is guaranteed to be maintained in this direction.

[0015] Furthermore, the first condition is: the monitored traffic density upstream of the construction area is lower than the preset construction start threshold; the monitored vehicle queue length upstream of the construction area is lower than the preset first length value; and the idle time since the last traffic queue passed without any incoming vehicles being detected reaches the preset time threshold.

[0016] Further, the second condition is: the monitored traffic density upstream of the construction area is higher than a preset construction stop threshold; wherein the construction stop threshold is greater than or equal to the construction start threshold; the monitored vehicle queue length upstream of the construction area is higher than a preset second length value; wherein the second length value is greater than or equal to the first length value; and a new traffic queue is detected to begin entering the monitoring area upstream of the construction area.

[0017] Furthermore, the values ​​of the construction start threshold and construction stop threshold are determined based on the road's design speed, number of lanes, and historical traffic flow data.

[0018] Compared with existing technologies, the comprehensive construction method for in-situ maintenance and reconstruction of urban roads without interrupting traffic provided by the present invention achieves the fine division of the construction area and alternating operations by dividing the road to be repaired into multiple continuous construction sections and further dividing each construction section into a first half and a second half, thereby achieving the effect of orderly advancing the maintenance project without interrupting traffic.

[0019] By dynamically managing the spatial layout of construction work areas based on real-time road traffic flow, the boundary shape of the work areas can be adjusted to expand the space for mechanical operations during periods of low traffic flow, and restored to its original state during periods of high traffic flow. This achieves the effect of flexibly utilizing road space resources and minimizing interference with traffic flow.

[0020] By controlling construction machinery and personnel to operate in an interruptible micro-circulation mode based on real-time traffic flow conditions, operations can be initiated when traffic flow conditions are met and promptly stopped and withdrawn when traffic flow conditions change. This achieves adaptive coordination between construction activities and traffic operation status, ensuring road traffic capacity.

[0021] By integrating traffic flow detection devices, wireless communication command issuance, and dynamic adjustment of multiple parameter thresholds, the system achieves real-time and accurate perception of traffic flow status and intelligent management of construction decisions, thereby improving construction safety, reducing manual intervention, and increasing maintenance efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a flowchart of a method provided in an embodiment of the present invention. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] As attached Figure 1 As shown:

[0026] Example 1:

[0027] This invention provides a comprehensive construction method for in-situ repair and reconstruction of urban roads without disrupting traffic, applicable to road surface repair projects on urban main roads or secondary roads, and includes the following steps:

[0028] Pre-construction preparation and road demarcation: First, a comprehensive technical condition survey and traffic flow analysis of the road to be repaired are conducted. Based on the actual road conditions, the road is divided into several continuous construction sections along its length, with each section ranging from 200 to 300 meters in length. Within each construction section, the road is evenly divided laterally into a first half and a second half, with construction alternating between the two halves to ensure that at least one lane is always maintained for normal vehicle passage.

[0029] Establishment of a real-time traffic flow monitoring system: A traffic flow detection device is installed 150-200 meters upstream of the construction area. This device combines inductive loop detectors with video surveillance. The inductive loop detectors are buried under the road surface to accurately detect the number of vehicles passing through, their speed, and lane occupancy. The video surveillance equipment is installed on roadside pillars to observe vehicle queue length and traffic flow status in real time. The monitoring data is transmitted via fiber optic cable to a central control unit at the construction site. The control unit has built-in traffic flow analysis software that can process the monitoring data in real time and generate traffic condition assessment reports.

[0030] Dynamic space management of the construction work area: During off-peak traffic hours (typically from 10:00 PM to 6:00 AM the following day), the boundary of the work area is adjusted from a straight line perpendicular to the road direction to a diagonal line at a 45° angle to the road direction. This adjustment allows construction machinery to temporarily occupy up to 1.5 meters of the opposite lane, significantly expanding the machinery's operating space. During the adjustment process, LED variable message signs and temporary traffic lights are installed around the work area, and four professionally trained traffic guides are deployed to guide vehicles in the opposite lane to slow down to below 30 km / h using handheld signal flags and flashing batons. Throughout the construction process, at least one standard lane with a width of 3.5 meters is always maintained for vehicle passage in this direction.

[0031] Dynamic management of construction process time: An interruptible micro-circulation operation mode is adopted, which is suitable for processes such as preliminary compaction after asphalt paving, surveying and setting out, local milling, and curbstone installation. The central control unit issues operation instructions to construction machinery and personnel through a wireless communication system (using a dedicated 4G / 5G network) based on real-time traffic flow conditions.

[0032] The system will automatically issue a start command when all three of the following conditions are met:

[0033] (1) The monitored traffic density upstream of the construction area is less than 12 vehicles / minute / lane;

[0034] (2) The length of the vehicle queue is less than 50 meters;

[0035] (3) No vehicle has been detected for 90 seconds since the last traffic queue passed.

[0036] The system will immediately issue a stop command if any of the following conditions occur:

[0037] (1) The monitored traffic density upstream of the construction area is higher than 20 vehicles / minute / lane;

[0038] (2) The length of the vehicle queue exceeds 80 meters;

[0039] (3) A new traffic flow queue was detected to be entering the upstream monitoring area of ​​the construction zone.

[0040] Upon receiving the stop order, all construction machinery was evacuated from the work area within 60 seconds, and construction personnel were evacuated simultaneously to quickly restore traffic.

[0041] Dynamic adjustment of threshold parameters: The specific values ​​of the construction start threshold and construction stop threshold are dynamically adjusted based on the road's design speed, number of lanes, and historical traffic flow data. For example, for a six-lane, two-way road with a design speed of 60 km / h, the construction start threshold can be set to a traffic density of 12 vehicles / minute / lane and a queue length of 50 meters; the construction stop threshold can be set accordingly to a traffic density of 20 vehicles / minute / lane and a queue length of 80 meters. These threshold parameters are reviewed and optimized weekly based on actual traffic conditions.

[0042] This system achieves the goal of ensuring both uninterrupted traffic flow and efficient and safe construction during urban road maintenance. The entire system employs intelligent management, automatically adjusting construction strategies based on real-time traffic conditions to minimize impact on urban traffic.

[0043] Example 2:

[0044] This invention provides a comprehensive construction method for in-situ repair and reconstruction of urban roads without disrupting traffic, with differentiated implementation methods for different road types and traffic organization modes, including the following steps:

[0045] Construction organization for expressways: Expressways are characterized by high speeds, large traffic volumes, and strong closure. Construction sections are controlled to be 300-500 meters long, with each section employing a "quarter-width" progressive construction method. The work surface boundary is adjusted using a low-angle (30°) oblique shape, occupying no more than 1.2 meters of the opposite lane width. Regarding traffic organization, the upstream warning zone is extended to 500 meters, with three levels of warning signs: a "Construction Ahead" sign at 500 meters, a "Slow Down" sign at 300 meters, and a "Speed ​​Limit 60" sign at 100 meters. Nighttime construction is controlled from 23:00 to 5:00 the following day. During this period, the outermost lane is temporarily closed, and construction information is disseminated in advance via electronic variable message signs to guide vehicles to change lanes ahead of time.

[0046] Construction organization for main roads: Main roads have high traffic volume but relatively slow speeds. The length of the construction section is controlled to 200-300 meters, using the "half-width alternating" construction method. The boundary of the work area can be a 45° diagonal or sawtooth shape, occupying no more than 1.5 meters of the width of the opposite lane. No work areas are set up within 50 meters before and after intersections to ensure space for turning vehicles. Traffic organization adopts the "tidal flow lane" method, allowing traffic to pass through the opposite lane during off-peak hours and returning to the original lane during peak hours. Movable barriers and crash barriers are set up to physically separate the work area from the traffic area.

[0047] Construction organization for branch roads: Branch roads are narrower and have lower traffic volume. The length of the construction section is controlled to be 100-150 meters, and a "segmented full closure" construction method is adopted. The boundary of the work surface adopts a sawtooth shape to maximize the use of limited space. In terms of traffic organization, "alternating release on one side" is implemented, and vehicle passage is controlled by temporary traffic lights. Turning points are set up at both ends of the construction section to guide vehicles that cannot pass through to detour. For branch roads with a width of less than 7 meters, a method of full closure construction at night and restoration of traffic during the day is adopted.

[0048] Construction organization for one-way streets: The construction of one-way streets adopts a "segmented and gradual" method, with the length of each construction segment controlled between 150 and 200 meters. The boundary of the work area adopts a diagonal shape consistent with the direction of traffic to minimize the impact on traffic efficiency. In terms of traffic organization, temporary detour signs are set up to guide vehicles to detour via adjacent roads. An emergency lane is reserved in the construction section to ensure the passage of emergency rescue vehicles.

[0049] Construction organization for two-way roads: The construction of two-way roads adopts a staggered time and width method, with the construction sections in the two directions staggered by 50-100 meters to avoid simultaneous lane reduction in both directions. The work surface boundary adopts a symmetrical oblique shape to maintain road alignment coordination. Regarding traffic organization, traffic light timings are adjusted to increase the green light time in the construction direction, improving traffic efficiency.

[0050] Special handling points: When constructing near bus stops, reserve bus stops and set up temporary bus stop signs. When constructing near schools, avoid peak school hours and assign personnel to guide students. When constructing in commercial areas, reserve pedestrian walkways and set up clear pedestrian guidance signs.

[0051] Traffic safety measures: Warning signs, construction signs, and directional signs are set up in all construction areas in accordance with national standards. During nighttime construction, additional LED warning lights and reflective delineators are used. Crash pads and buffer zones are set up between the work area and the traffic area to ensure driving safety. Dedicated traffic safety officers are assigned to monitor traffic conditions in real time and handle emergencies promptly.

[0052] By developing differentiated construction strategies and traffic organization plans tailored to the characteristics of different road types and traffic organization methods, construction efficiency was ensured while minimizing the impact on urban traffic, thus achieving refined construction management.

[0053] Example 3:

[0054] This invention provides a comprehensive construction method for in-situ maintenance and reconstruction of urban roads without disrupting traffic, including construction adjustment strategies and implementation details for special conditions, comprising the following steps:

[0055] Construction adjustments under rain and snow conditions: Immediately suspend all outdoor construction activities when rainfall exceeds 10 mm / h or during snowfall. Adjust the construction start threshold to 1.5 times the normal threshold, i.e., traffic density below 8 vehicles / minute / lane, queue length below 35 meters, and idle time of 135 seconds. Lay anti-slip mats in the work area and increase drainage facilities to prevent water accumulation from affecting construction safety. Equip all construction machinery with anti-skid chains, and ensure construction personnel wear highly visible, anti-slip rain gear. Place "Slippery Road in Rainy Weather" warning signs 200 meters upstream of the work area and reduce the speed limit for guiding vehicles to 20 km / h.

[0056] Special measures for nighttime construction: During nighttime construction hours (22:00-06:00), the illumination standard will be increased to over 300 lux, and LED anti-glare lighting equipment will be used to avoid glare affecting drivers. The construction start threshold will be appropriately relaxed, and the traffic density standard will be adjusted to 15 vehicles / minute / lane, but the idle time requirement will be shortened to 60 seconds. The number of traffic guidance personnel will be increased to 6, all wearing Category IV high-visibility reflective clothing and equipped with high-intensity flashlights and flashing batons. A solar-powered warning light will be installed every 50 meters around the work area to form a continuous warning light strip.

[0057] Adaptive adjustments during peak holiday periods: Three days before and after statutory holidays, construction hours will be adjusted to 23:00-05:00 to avoid peak travel times. The construction start threshold will be raised to a traffic density of less than 10 vehicles / minute / lane, a queue length of less than 40 meters, and an idle time of 120 seconds. A more compact sawtooth-shaped work surface layout will be adopted, occupying no more than 1 meter of the width of the opposite lane. A three-level early warning system will be installed 500 meters upstream, using variable message signs to publish real-time traffic information and detour suggestions.

[0058] Construction safety measures during high temperatures: When temperatures exceed 35℃, shorten continuous work hours to 2 hours and increase shift rotation frequency. Provide heatstroke prevention and cooling supplies for construction workers and set up temporary rest areas. Install insulation facilities on asphalt mixture transport vehicles to ensure that paving temperatures meet specifications. The construction start threshold remains unchanged, but the termination threshold is appropriately lowered; work will be suspended when the traffic density exceeds 18 vehicles / minute / lane.

[0059] Emergency procedures for heavy fog: Immediately cease all construction activities when visibility is below 200 meters. When visibility is between 200 and 500 meters, adjust the construction start threshold to a traffic density of less than 6 vehicles per minute per lane and a queue length of less than 30 meters. Install fog light warning systems 300 meters upstream of the work area and add voice prompt equipment to remind drivers to slow down via broadcast.

[0060] Traffic management optimization during special periods: During school drop-off and pick-up times, coordinate with schools in advance to arrange dedicated personnel to assist in traffic control. During large-scale events, establish a joint mechanism with traffic police to adjust construction plans in real time. During morning and evening rush hours, completely cease construction work, retaining only necessary safety protection facilities.

[0061] Emergency Response Plan Activation and Implementation: Establish a tiered response mechanism: Level 1 response (minor congestion), increase traffic guidance personnel; Level 2 response (moderate congestion), shorten operation time; Level 3 response (severe congestion), immediately suspend construction. Equip with emergency rescue vehicles and equipment to ensure on-site response within 5 minutes. Establish a green channel to ensure rapid passage for emergency vehicles.

[0062] Dynamic adjustment mechanism for monitoring parameters: A threshold dynamic adjustment model based on machine learning algorithms is established to analyze traffic flow data in real time and automatically optimize construction parameters. Threshold parameters are reviewed weekly, and a comprehensive assessment and adjustment are conducted monthly. Parameters are pre-adjusted 24 hours in advance before and after special weather conditions or holidays.

[0063] Enhanced safety measures: Under special conditions, the length of the safety buffer zone will be increased by 50%, and the density of anti-collision facilities will be increased by 30%. All construction personnel will receive daily safety briefings, and specialized safety training will be conducted before inclement weather. A site safety officer patrol system will be established, with a comprehensive inspection of the implementation of safety measures every 30 minutes.

[0064] Information dissemination and public communication: Construction information will be released in advance through multiple channels, including traffic radio, navigation software, and WeChat official accounts. Notices will be posted in residential areas surrounding the construction site, and a 24-hour inquiry service hotline will be established. A rapid complaint handling mechanism will be established to respond to citizen feedback within 30 minutes.

[0065] By making meticulous adjustments and strengthening safeguards for special conditions, we ensure that the construction of urban roads can adapt to various complex environments while maximizing construction safety and smooth traffic flow, reflecting an intelligent and human-centered construction management philosophy.

[0066] Comparative example:

[0067] In existing technologies, in-situ maintenance and renovation of urban roads typically employs the traditional half-width closure construction method. The specific implementation of this method is as follows:

[0068] Before construction, the road will be closed in half, typically 500-1000 meters in length. Fixed work boundaries will be established within the closed area, using a straight line perpendicular to the road direction. Work space will be limited to the closed half. During construction, a fixed detour plan will be implemented, with detour signs placed at both ends of the construction section to guide vehicles to use opposite lanes or adjacent roads.

[0069] Traffic flow monitoring relies on manual observation, with on-site construction personnel visually assessing traffic conditions at fixed times, lacking real-time accuracy and precision. Construction procedures are executed according to a predetermined plan, making adjustments impossible based on real-time traffic conditions. Decisions to initiate or halt construction depend entirely on the experience and judgment of the construction supervisor, lacking quantifiable standards.

[0070] Under severe weather conditions, construction is typically halted entirely until the weather improves. During peak traffic hours, while the number of construction machines is reduced, the existing construction methods are largely maintained, lacking a targeted adjustment mechanism.

[0071] Safety measures are relatively simple, relying mainly on conventional warning signs and isolation facilities, lacking intelligent monitoring and early warning systems. Information dissemination channels are limited, typically consisting of only a few notice boards set up around the construction area, resulting in insufficient timeliness and convenience for the public to obtain construction information.

[0072] Comparison table:

[0073]

[0074] The comparison table shows that the embodiments of the present invention have significant advantages over the prior art: they achieve dynamic, intelligent, and refined management of the construction process, and can automatically adjust construction parameters according to real-time traffic conditions and special circumstances, minimizing the impact on traffic and improving construction efficiency and safety. In contrast, the prior art uses a fixed construction mode, lacking flexibility and adaptability, which easily leads to traffic congestion and low construction efficiency.

[0075] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A comprehensive construction method for in-situ repair and renovation of urban roads without disrupting traffic, characterized in that: Includes the following steps: The road to be repaired is divided into multiple consecutive construction sections, and within each construction section, the road is further divided into the first half and the second half. Based on real-time road traffic flow, dynamically manage the spatial layout of construction work areas and the time arrangement of construction procedures; The dynamic management of the construction work area layout includes: during periods of low traffic flow, adjusting the boundary of the work area from a shape perpendicular to the road direction to a diagonal or sawtooth shape to temporarily expand the mechanical work space to the opposite lane area; during periods of high traffic flow, restoring the boundary of the work area to a shape perpendicular to the road direction. The dynamic management of construction process scheduling includes: controlling construction machinery and personnel to carry out construction in an interruptible micro-circulation operation mode based on real-time traffic flow status; starting micro-circulation operation when traffic flow status meets the first condition; and stopping micro-circulation operation and withdrawing when traffic flow status meets the second condition.

2. The method for non-disruptive traffic construction of in-situ repair and reconstruction of urban roads according to claim 1, characterized in that, When the boundary of the work surface is adjusted to one of the shapes of a diagonal line or a sawtooth shape, temporary traffic lights and personnel are used to guide vehicles in the opposite lane to move slowly.

3. The method for in-situ repair and reconstruction of urban roads without disrupting traffic, as described in claim 1, is characterized in that... The micro-circulation operation includes any one of the following: preliminary compaction after asphalt paving, surveying and setting out, local milling, and curbstone installation.

4. The method for in-situ repair and reconstruction of urban roads without disrupting traffic, as described in claim 1, is characterized in that... The real-time traffic flow status is achieved through a traffic flow detection device installed upstream of the construction area. The traffic flow detection device includes one of the following: inductive loop, camera, and radar.

5. The method for in-situ repair and reconstruction of urban roads without disrupting traffic, as described in claim 1, is characterized in that... The instructions to start and stop the microcirculation operation are issued wirelessly.

6. The method for in-situ repair and reconstruction of urban roads without disrupting traffic, as described in claim 1, is characterized in that... When the boundary of the work surface is adjusted to one of the shapes of oblique line and sawtooth, at least one unobstructed lane shall be maintained in this direction.

7. The method for in-situ repair and reconstruction of urban roads without disrupting traffic, as described in claim 1, is characterized in that... The first condition is: the monitored traffic density upstream of the construction area is lower than the preset construction start threshold; the monitored vehicle queue length upstream of the construction area is lower than the preset first length value; and the idle time after the last traffic queue has passed without any incoming vehicles has reached the preset time threshold.

8. The method for in-situ repair and reconstruction of urban roads without disrupting traffic, as described in claim 1, is characterized in that... The second condition is: the monitored traffic density upstream of the construction area is higher than a preset construction stop threshold; wherein the construction stop threshold is greater than or equal to the construction start threshold; the monitored vehicle queue length upstream of the construction area is higher than a preset second length value; wherein the second length value is greater than or equal to the first length value; and a new traffic queue is detected to be entering the monitoring area upstream of the construction area.

9. The method for in-situ maintenance and reconstruction of urban roads without disrupting traffic, as described in claim 1, is characterized in that... The values ​​of the construction start threshold and construction stop threshold are determined based on the road's design speed, number of lanes, and historical traffic flow data.

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