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32 results about "Traffic emission" patented technology
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Traffic emissions are one of the commonest and worst spreaders of PAHs into the air we breathe. It is from tyre debris in particular that large quantities of compounds in the form of small particles are released into the environment.
VSP-distribution-based traffic operation data and emission data coupling method and system
ActiveCN104715605ASimplify the physical meaning of emissionsRapid responseDetection of traffic movementCouplingTraffic emission
The invention provides a VSP-distribution-based traffic operation data and vehicle emission data coupling method and system. Excavation and analysis are conducted on features of traffic operation data and vehicle emission data, VSP distribution serves as an intervening variable, and a dynamic mapping relation between traffic operation parameters such as traffic flow, the average speed and vehicle running working condition and vehicle emission parameters such as the emission index and the emission factor. By means of the VSP-distribution-based traffic operation data and emission data coupling method and system, the physical significance of vehicle exhaust emission is simplified, and the efficiency and accuracy of traffic emission quantitative evaluation are improved.
Owner:BEIJING JIAOTONG UNIV
Urban traffic carbon emission measurement and calculation system, and measurement and calculation method
The invention discloses an urban traffic carbon emission measurement and calculation system, and an urban traffic carbon emission measurement and calculation method. The urban traffic carbon emission measurement and calculation system comprises a driving factor generating module, a carbon emission measurement and calculation module and an emission reduction outcome evaluation module, wherein the driving factor generating module is used for extracting and generating driving factors according to various traffic emission reduction policies; the carbon emission measurement and calculation module is used for calculating energy consumption according to the driving factors, and calculating urban traffic carbon emission and atmospheric pollutant emission according to the energy consumption; and the emission reduction outcome evaluation module is used for evaluating emission reduction effects of the traffic emission reduction policies according to the urban traffic carbon emission and atmospheric pollutant emission. On the basis of fully analyzing the traffic emission reduction policies and combining with an LEAP model, the urban traffic carbon emission measurement and calculation system is established, scattered output data of the traditional model is integrated into a visual index, namely, the carbon emission, so that the carbon emission is liable to be used by decision makers directly, and the effective evaluation index and method are provided for the decision-making of policy support strength and time span.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP
Crossing signal timing optimization method for reducing exhaust gas emission of motor vehicle
ActiveCN105243855AControlling traffic signalsInternal combustion piston enginesTraffic emissionExhaust gas emissions
The invention discloses a crossing signal timing optimization method for reducing exhaust gas emission of a motor vehicle, and is applied to a single-point signal control crossing with (without) a left-turn short lane. An emission factor calibration method during red light and green light periods is brought forward based on motor vehicle specific power, and a signal timing optimization model of a minimum motor vehicle emission amount is constructed according to a traffic flow theory and operational research. Three common pollutants including CO, HC and NOx are taken into consideration, a traffic simulation experiment is designed by use of VISSIM software, a parameter calibration and model solution algorithm is compiled by use of MATLAB software, two emission factors of each pollutant of each lane are calibrated according to vehicle driving condition data, and a new signal timing optimization model is verified by use of traffic flow data. Results show that the emission factors during the green light period are higher than the emission factors during the red-light period, and the new method can reduce both vehicle delay and traffic emission. The method provided by the invention facilitates simultaneous reduction of the vehicle delay at a crossing and the traffic emission through optimization of a conventional signal timing scheme, thereby being widely applied to design of a single-point crossing signal timing scheme.
Owner:DALIAN UNIV OF TECH
Method for dynamically monitoring urban traffic emission pollution status based on taxi GPS data
ActiveCN108682156ALow costRealize monitoringDetection of traffic movementTraffic emissionPollutant emissions
The invention provides a method for dynamically monitoring the urban traffic emission pollution status based on taxi GPS data and belongs to the atmospheric environmental monitoring technology field.The method comprises steps that firstly, GPS data of taxis, the proportion of each type of vehicles of different road types and daily change of the proportion of the taxis are collected; GIS-based grid division of the collected GPS data is carried out, and the traffic volume, the average speed and the pollutant emission amount of each grid are calculated; the traffic volume, the average speed, thepollutant emission amount of each grid and road length are selected as monitoring factors, a monitoring index value of each grid is calculated according to the weight of each monitoring factor, and lastly, the level of the traffic emission pollution status of each grid is determined based on the monitored index values. The method is advantaged in that a problem of low accuracy of real-time monitoring data of the traffic emission pollution status in the prior art is solved, and the method is applicable to monitoring of the traffic emission pollution status.
Owner:HARBIN INST OF TECH
Method and device for calculating traffic emission, and terminal
InactiveCN110232816AComprehensive operating dataEnabling traffic emissions calculationsDetection of traffic movementForecastingTraffic capacityTraffic emission
The invention is applicable to the technical field of environmental monitoring, and provides a method and a device for calculating traffic emission, and a terminal. The calculation method comprises the following steps: acquiring vehicle operation data of all road sections in a target area, wherein the vehicle operation data comprises operation data of various types of vehicles; based on the vehicle operation data, extracting traffic operation characteristics of all the road sections in the target area, wherein the traffic operation characteristics include the traffic jam levels of all the roadsections in the target area and the flow and speeds of various different types of vehicles; and calculating the traffic emission of the target area on the basis of the traffic operation characteristics and preset emission factors of various different types of vehicles. Hardware equipment for detecting the traffic emission does not need to be arranged, and the vehicle operation data of the urban area and the emission factors of different types of vehicles can be used for realizing the traffic emission calculation, so that the implementation cost is low and a calculation result is comprehensive.
Owner:SHENZHEN URBAN TRANSPORT PLANNING CENT
Method and system for traffic control and traffic emission control
InactiveCN102314766AReduce parking feesInstruments for road network navigationRegistering/indicating working of vehiclesPaymentTraffic emission
A method for traffic control by controlling traffic emission, using a communication server, which maintains a digital emission map in a storage device of a defined geographical region and which updates the emission map by external sources, comprising the steps: - providing data of the emission map to a onboard unit (OBU) in a car via a wireless network, - calculation of a alternative route by bypassing areas which are highly impacted by emissions, - tracking of the alternative route and transferring the tracking information to the communication server, - calculation of a digital bonus for digital payment by the communication server, and transferring the digital bonus to a digital account, the OBU or mobile device.
Owner:DEUTSCHE TELEKOM AG
Integrated main line intersection group space-time resource allocation method capable of lowering delay and emission
ActiveCN106205123AInternal combustion piston enginesDetection of traffic movementConfiguration optimizationSignal on
A coordinate signal timing dial optimization method capable of lowering vehicle delay and traffic emission is applicable to main line intersection groups with (without) left-handed rotation short lanes. On the basis of impact analysis of coordinate signals on the main line traffic flow, short-lane space optimization is considered, and a main line intersection group space-time resource allocation optimization model is constructed, and the main line intersection group signal timing dial optimization model is constructed for determining the short-lane space. In order to evaluate the operating efficiency and the environmental conditions of main line intersection groups, three performance indexes of the specific form are provided, and a lane group average traffic delay estimation method and a traffic light period emission factor calibration method are improved. Then, technological application processes for models and methods are given for various conditions. By means of traffic simulation software VISSIM and programming software MATLAB, a computational example is used for explaining the technological application processes. A result shows that the novel method can integrally allocate time-space resources for main line intersection groups, the minimization of vehicle delay and traffic emission is achieved, and the method can be widely applied to signal timing dial design and optimization.
Owner:DALIAN UNIV OF TECH
Estimation method for influence of future motor vehicle structure adjustment on traffic emission source list
InactiveCN108052791AEmission source inventory establishmentInformaticsSpecial data processing applicationsTerrainEstimation methods
The invention discloses an estimation method for an influence of future motor vehicle structure adjustment on a traffic emission source list. Based on a traffic yearbook, and according to actual motorvehicle population and driving mileage of a city, a driving ratio of light and heavy vehicles to motorcycles in the city is estimated; according to collected and sorted literatures and data, the Reidvapor pressures of fuel and the sulfur content of the fuel in various regions are adjusted; by utilizing an MICAPS meteorological database, meteorological fields (temperature, humidity, cloud cover,terrain height and the like) of an estimated region are obtained, related environment parameters required by a model are adjusted, and motor vehicle emission factors of various regions and motor vehicle emission factors in a scene of different substitutions of future electric vehicles are estimated by utilizing the MOBILE model; and finally according to the estimated emission factors, and in combination with the motor vehicle population and the average driving mileage of the city, the influence of the future motor vehicle structure adjustment on the traffic emission source list is estimated.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3
Automobile emission purification device
InactiveCN107019983AGood purification effectDecompose fullyCombination devicesGas treatmentTraffic emissionFlue gas
The invention relates to a purification device, in particular to an automobile tail gas purification device. The automobile exhaust gas purifying device comprises an exhaust gas inlet pipe, which is connected with the shell of the purifier. Several groups of vertical filter screens are respectively installed between the screens, and a purification liquid is provided in the shell of the purifier. The beneficial effects of the present invention are: after cooling the exhaust gas of the automobile, it is purified in the purification liquid; during the purification process, the flue gas is sheared, stirred and collided horizontally and vertically, which can fully decompose the flue gas particles and make them be purified by the purified liquid. Adsorption, good effect on flue gas purification, avoiding the pollution of automobile exhaust to the environment.
Owner:郑志泰
Traffic exhaust emission prediction method based on deep residual network
ActiveCN110738367AAccurately predict emissionsImprove accuracyForecastingCharacter and pattern recognitionData setTraffic emission
The invention relates to the technical field of traffic exhaust emission prediction, and provides a traffic exhaust emission prediction method based on a deep residual network. The method comprises the following steps: firstly, dividing a to-be-predicted region into grid regions; acquiring a vehicle GPS trajectory data set, holiday and festival conditions and weather condition data of a to-be-predicted area in each time period, and calculating the traffic exhaust emission of each grid in each time period; constructing a holiday-weather-emission sample set, a nearest time sample set, an adjacent time sample set and a remote time sample set, and preprocessing each sample set; constructing a traffic emission prediction model based on a deep residual network, and training the model; and finally, predicting the traffic exhaust emission of each grid in the to-be-predicted time period by utilizing the trained traffic emission prediction model. According to the method, the accuracy of trafficexhaust emission prediction can be improved, and the traffic exhaust emission of each subarea in the whole city can be predicted at the same time.
Owner:东北大学秦皇岛分校
Real-time traffic atmospheric pollution emission list calculation method and decision-making assistance method
ActiveCN113222442AAddressing the status quo of decouplingImprove practicalityDatabase management systemsForecastingOptimal decisionEmission inventory
The invention provides a real-time traffic air pollution emission list calculation method and a decision-making auxiliary method. According to the method, the method comprises the steps of: obtaining, standardizing and then storing data information meeting list calculation and policy evaluation in a database; and calculating a traffic real-time emission list by using information such as vehicle emission factors and the like based on limited traffic flow extended data. By setting the measure implementation strength of the policy scene, the emission key parameters influenced by the measures are quantified, and the emission reduction effect is evaluated; and real-time traffic jam and high-emission-density road section sequencing is established by utilizing traffic operation and emission data, optimal decision sequencing is established by utilizing scene emission reduction effects, and auxiliary decision suggestions are given. According to the invention, accurate quantification of urban traffic air pollution emission, optimization of traffic emission reduction measures and real-time evaluation of policy and measure effects can be realized.
Owner:DONGGUAN UNIV OF TECH
Method and system for estimating urban mobile source pollution emission by using incomplete information
PendingCN114036135AAchieving refined estimation tasksData processing applicationsDetection of traffic movementTraffic emissionSimulation
The invention relates to a method and system for estimating urban mobile source pollution emission by using incomplete information. The method comprises steps that a road section is divided into two types according to the data density obtained on the road section, specifically including an information missing road section lacking traffic mode information due to sparse collected data and an information complete road section with enough dense data; a continuous speed field and a deduced flow value are constructed for the information complete road section through the motor vehicle driving related data, and a corresponding traffic emission value is calculated through a microscopic emission factor model according to the continuous speed field and the deduced flow value; a graph convolution unit and a gating linear unit are used for respectively extracting topological characteristics of a road network and time sequence dependence of motor vehicle emission sequences on a road section with complete information, so emission sequences on a road section with information missing are reconstructed, and missing emission distribution information is filled up. According to the method, more traffic modes and emission distribution characteristics are mined by using less urban traffic data, and the urban road section level traffic pollution emission refined estimation task is realized.
Owner:UNIV OF SCI & TECH OF CHINA
Carbon payment emission charging method based on dynamic user balanced traffic distribution
ActiveCN112447047AThe result is accurateMeet emission assessment requirementsDetection of traffic movementTravel modeTraffic emission
The invention discloses a carbon payment emission charging method based on dynamic user balanced traffic distribution. The method comprises the following steps: determining a corrected road section emission model based on an average speed; determining a dynamic network loading method based on the road section supply demand; adopting a dynamic user optimal traffic emission model based on an emission target; and determining a carbon payment charging method, setting a charging model based on a road section discharge threshold, setting a corresponding discharge threshold for each road section, andpaying a certain discharge cost when the discharge amount of a travel user passing through the road section exceeds the set threshold. According to the invention, the relationship between a traffic distribution model and a vehicle emission model is established, and the decision of the traveler is changed through the charging method, so that the travel demand is reduced to a certain extent or thetravel user is prompted to select the travel mode with less emission in consideration of multi-mode traffic distribution, and the road network emission is reduced.
Owner:SOUTH CHINA UNIV OF TECH
Bus station model selection method based on microscopic traffic emission estimation
PendingCN110852528AConducive to refined designImprove the level of public transport servicesDetection of traffic movementForecastingTraffic flowUrban bus
The invention discloses a bus station model selection method based on microscopic traffic emission estimation. The invention relates to the technical field of traffic engineering design. According tothe method, based on VISSIM and CMEM models, oil consumption and emission at urban bus stops are analyzed; and analogue simulation is carried out on the traffic flows of the buses and the social vehicles in different station forms, and the traffic flows are coupled with a tail gas emission and oil consumption model to obtain second-by-second pollutant emission rates, oil consumption rates, total emission factors and oil consumption factors of the buses and the social vehicles in different station forms. According to the invention, the second-by-second pollutant emission rate, the oil consumption rate, the total emission factor and the oil consumption factor of buses and social vehicles under different station forms can be effectively simulated; and a reasonable bus station model selectionscheme considering bus commuting personnel pollution exposure is obtained, so that refined design of urban public transportation is facilitated, the public transportation service level is improved, and convenience is provided for urban bus station model selection.
Owner:CHANGAN UNIV
Road charging method considering traffic emission exposure of travelers and residents
ActiveCN114267174AReduce Exposure to Traffic EmissionsReduce pollution concentrationTicket-issuing apparatusDetection of traffic movementTraffic emissionRoad networks
The invention relates to a road charging method considering traffic emission exposure of travelers and residents, and belongs to the technical field of traffic management. The method comprises the following steps: S1, selecting a road network, and determining OD pairs and traffic demand in the road network; s2, estimating the traffic emission pollutant concentration by using the integrated model; s3, quantifying traffic emission exposure of travelers and non-travelers; s4, constructing three road toll models with different management purposes based on the perspective of traffic managers; and S5, acquiring a charging standard of each road section in the road network, a travel path selection condition and traffic emission exposure conditions of travelers and non-travelers under different management purposes. According to the method, different road network flow distribution schemes and change conditions of traffic emission exposure of travelers and non-travelers are obtained by analyzing the road charging schemes under three different management purposes, and the research results can provide reliable theoretical basis and reference methods for a traffic management part when the road charging schemes are formulated.
Owner:CHONGQING UNIV OF POSTS & TELECOMM
Road network fine particulate matter research method based on traffic operation state
ActiveCN113642241AEmissions close toDetection of traffic movementCharacter and pattern recognitionTraffic emissionSimulation
The invention discloses a road network fine particulate matter research method based on a traffic operation state. The method comprises the steps: establishing an urban fine particulate matter transmission recognition model based on a fine particulate matter area transmission recognition algorithm, and obtaining information such as area fine particulate matter transmission time, concentration and direction; eliminating the monitoring interference of fine particulate matter area transmission on local traffic fine particulate matter emission; through urban road classification and road network traffic operation actual data, extracting the road network traffic operation spatial-temporal characteristics, and establishing a road network fine particulate matter spatial-temporal emission model considering the traffic operation state; wherein the road network fine particulate matter space-time emission model reflects the road network fine particulate matter space-time emission characteristics generated by road network traffic operation from the road network actual traffic operation state. According to the invention, the change condition of urban fine particulate matters can be researched, a new perspective is provided for targeted implementation of urban traffic guidance and planning of an urban traffic network, and high-efficiency traffic control from the perspective of urban traffic emission becomes possible.
Owner:BEIHANG UNIV
Traffic signal robust control method considering traffic emission uncertainty
ActiveCN113724508AEmission reductionSignificant improvementControlling traffic signalsInternal combustion piston enginesTraffic flow modelingTraffic emission
The invention discloses a traffic signal robust control method considering traffic emission uncertainty. The method comprises the following steps: establishing a mapping relation between a road section traffic flow and road section traffic emission; performing equivalent transformation on the mapping relation by adopting a robust optimization method, and establishing a traffic emission objective function; and establishing a planning model according to the traffic emission objective function in combination with a traffic flow model, and solving an optimal signal timing scheme. According to the method, the mapping relation between traffic emission and traffic flow is established, so that the influence of traffic state change on traffic emission can be directly reflected; and the traffic emission amount is directly taken as an optimization target, so that a more effective traffic signal timing scheme can be found, the traffic emission is reduced, and the atmospheric environment quality is improved.
Owner:四川国蓝中天环境科技集团有限公司
Traffic low-emission evolution regulation and control method and system
ActiveCN110070222AImprove traffic capacityReduce delaysInternal combustion piston enginesForecastingTraffic capacityConical intersection
The invention discloses a traffic low-emission evolution regulation and control method and system, and the method comprises the steps: a virtual intersection corresponding to a real intersection is built for intersections with different geometrical shapes and topological structures, wherein the optimization of the low-emission signal control scheme of the traffic is realized based on a microscopicsimulation platform, so that the risk caused by an unreasonable signal scheme is reduced; due to the fact that optimization of the evolution control scheme takes vehicle average delay and traffic emission as comprehensive indexes, multi-objective optimization is achieved, the vehicle average delay and emission can be remarkably reduced after multiple times of learning, and the traffic capacity ofthe intersection is improved. Besides, the system of the invention learns a traffic low-emission optimization control scheme through interaction with the environment, solves the problem that accuratemathematical modeling is difficult to carry out, and is better suitable for different intersections and traffic flow conditions.
Owner:安徽中科龙安科技股份有限公司
A method for dynamic monitoring of urban traffic emission pollution based on taxi gps data
The invention provides a method for dynamically monitoring urban traffic discharge pollution conditions based on taxi GPS data, and belongs to the technical field of atmospheric environment monitoring. The present invention firstly collects the taxi GPS data, the proportion of each vehicle type of different road types and the daily change of the taxi proportion; divides the collected GPS data into grids based on GIS, and then calculates the traffic volume and average speed of each grid , pollutant emissions; select the traffic volume, average speed, pollutant discharge and road length of each grid as monitoring factors, and calculate the monitoring index value of each grid according to the weight of each monitoring factor, and finally according to the monitoring index value Determine the traffic emission pollution status level of each grid. The invention solves the problem of low accuracy of real-time monitoring data of traffic emission pollution status in the prior art. The invention can be used for monitoring the urban traffic emission pollution status.
Owner:HARBIN INST OF TECH
A NMR method for distinguishing carbonaceous origins of carbonaceous aerosol components
ActiveCN110646457BIncrease awarenessAnalysis using nuclear magnetic resonanceSolid carbonNMR - Nuclear magnetic resonance
The invention discloses a nuclear magnetic resonance method for distinguishing carbonaceous sources of carbonaceous aerosol components. Collect samples of biomass source aerosol, coal combustion emission aerosol, and traffic emission (fossil source) aerosol samples that are the main sources of carbonaceous aerosols, and use solid-state nuclear magnetic resonance to analyze the carbon spectra of three types of typical source aerosols for data analysis. Divided into sp3-hybridized alkyl C (0-60ppm), sp2-hybridized carbon 100-165ppm) and carbon dioxide (60-100ppm+165-220ppm), with these three categories as end members, Make a ternary point diagram; measure the carbonaceous NMR spectrum data of the carbonaceous aerosol component sample to be tested, and analyze the ternary linear equation according to the above ternary point diagram data to calculate the carbonaceous aerosol component to be measured. The proportion of each carbonaceous source of biomass sources, coal combustion emissions, and traffic emissions in the aerosol component samples. The invention can distinguish the carbon sources of the carbonaceous aerosol components, and provides favorable conditions for preventing and controlling the carbonaceous aerosol components.
Owner:GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
Low-carbon configuration optimization method for typical on-road parking spaces
ActiveCN112365709AEasy to judgeQuick judgmentDetection of traffic movementForecastingTraffic emissionParking space
The invention discloses a low-carbon configuration optimization method for typical on-road parking spaces, and belongs to the technical field of traffic system planning. The method comprises the stepsthat: various data of road sections where on-road parking is set and is planned to be set are obtained; for a traffic environment with data collection conditions, low-carbon on-road parking optimal configuration is conducted through a carbon emission calculation model and a carbon emission comparison method; for a traffic environment where data collection is difficult, low-carbon on-road parkingoptimal configuration is performed through the carbon emission calculation model and a saturation coordinate method; and finally, evaluating the low-carbon emission reduction effects of a parking configuration scheme before and after optimization. According to the low-carbon configuration optimization method, reference can be provided for configuration and optimization links of on-road parking, the result of configuration optimization shows that the total amount of on-road parking carbon emission of a city can be effectively reduced, and the low-carbon configuration optimization method has positive significance for traffic emission reduction and overall energy conservation and emission reduction of the city.
Owner:SOUTHEAST UNIV
Method of Predicting Average Travel Distance and Congestion-prone Road Sections Based on Planning Road Network
Owner:JISHOU UNIVERSITY
A Traffic Exhaust Emissions Prediction Method Based on Deep Residual Network
ActiveCN110738367BAccurately predict emissionsImprove accuracyForecastingCharacter and pattern recognitionData setPredictive methods
The invention relates to the technical field of traffic tail gas emission prediction, and provides a traffic tail gas emission prediction method based on a deep residual network. First, divide the area to be predicted into grid areas; then collect the vehicle GPS trajectory data set, holiday conditions and weather data in the area to be predicted in each time period, and calculate the traffic exhaust emissions of each grid in each time period Then construct the holiday-weather-emission sample set, the latest time sample set, the adjacent time sample set, the distant time sample set, and preprocess each sample set; then build a traffic emission prediction model based on the deep residual network, and train model; finally, use the trained traffic emission prediction model to predict the traffic exhaust emissions of each grid within the time period to be predicted. The invention can improve the prediction accuracy of traffic tail gas discharge, and can predict the traffic tail gas discharge of each sub-region in the whole city at the same time.
Owner:东北大学秦皇岛分校
An Optimal Method for Signal Timing at Intersections to Reduce Motor Vehicle Exhaust Emissions
Owner:DALIAN UNIV OF TECH
Method, device and equipment for analyzing influence of motor vehicle emission on air quality
The embodiment of the invention provides a method, a device and equipment for analyzing the influence of motor vehicle emission on air quality. The method comprises the following steps: constructing a local motor vehicle emission factor model database according to a basic emission factor library; generating urban dynamic traffic flow data according to the urban road network traffic flow; according to the local motor vehicle emission factor model database and the urban dynamic traffic flow data, generating urban road dynamic traffic emission total amount data; and carrying out multi-dimensional dynamic display on the urban dynamic traffic flow data, the urban road dynamic traffic emission total amount data and the air quality data. In this way, a set of Guangzhou city traffic network and emission information multi-dimensional dynamic display platform based on real-time traffic flow and environment monitoring data can be constructed, and motor vehicle emission dynamic updating on the hour scale can be achieved.
Owner:3CLEAR SCI & TECH CO LTD +1
A vehicle sharing planning method based on urban heterogeneity
ActiveCN113096377BThe rideshare planning method is real and reliableEase traffic congestionDetection of traffic movementTraffic emissionTraffic network
The invention discloses a vehicle sharing planning method based on urban heterogeneity, mainly adopts a market experiment method, a traffic network modeling optimization method and a traffic simulation method, especially in the traffic network modeling optimization and traffic simulation, establishes a reasonable description The carpooling system model under different urban conditions can analyze the effect of the scheme more realistically through simulation, so that the obtained carpooling planning method is more realistic and reliable; the analysis in the implementation process of the present invention can be used as a policy basis for alleviating traffic congestion and improving the traffic environment. It will ease traffic congestion in a city, save resources, reduce traffic emissions, and improve the environment; in the context of vigorously advocating carpooling, a reasonable carpooling system can be established to make urban traffic enter a virtuous circle and provide good traffic conditions for the society .
Owner:SOUTHWEST JIAOTONG UNIV
A Carbon Payment Emission Charging Method Based on Dynamic User Balanced Traffic Allocation
ActiveCN112447047BThe result is accurateMeet emission assessment requirementsDetection of traffic movementTravel modeTraffic emission
The invention discloses a carbon payment emission charging method based on dynamic user balanced traffic allocation, which comprises the following steps: determining a modified road section emission model based on average speed; determining a dynamic network loading method based on road section supply and demand; User-optimized traffic emission model; determine the carbon payment charging method, set the charging model based on the emission threshold of the road section, and set the corresponding emission threshold for each road section. emissions charges. The present invention establishes the relationship between the traffic allocation model and the vehicle emission model, changes the traveler's decision-making through the charging method, reduces the travel demand to a certain extent or prompts the traveler to choose a travel mode with less emission when considering multi-mode traffic distribution , thereby reducing road network emissions.
Owner:SOUTH CHINA UNIV OF TECH
A method and system for coupling traffic operation data and emission data based on vsp distribution
ActiveCN104715605BSimplify the physical meaning of emissionsRapid responseDetection of traffic movementTraffic emissionCoupling
The invention provides a VSP-distribution-based traffic operation data and vehicle emission data coupling method and system. Excavation and analysis are conducted on features of traffic operation data and vehicle emission data, VSP distribution serves as an intervening variable, and a dynamic mapping relation between traffic operation parameters such as traffic flow, the average speed and vehicle running working condition and vehicle emission parameters such as the emission index and the emission factor. By means of the VSP-distribution-based traffic operation data and emission data coupling method and system, the physical significance of vehicle exhaust emission is simplified, and the efficiency and accuracy of traffic emission quantitative evaluation are improved.
Owner:BEIJING JIAOTONG UNIV
A visual early warning method and system for traffic emission pollution
ActiveCN110346518BImprove reliabilityImprove practicalityCharacter and pattern recognitionArtificial lifeEnvironmental resource managementData information
The invention discloses a traffic discharge pollution visualization early warning method, which includes the basic data information of the monitoring area; extracts the characteristics of the relative position information; selects the optimal air quality monitoring station and the optimal traffic road node; constructs the prediction of air pollutants model; build a pollutant concentration prediction model for any monitoring point and correct it; perform visual early warning of urban traffic pollution emissions in the monitoring area. The invention also discloses a system for realizing the traffic discharge pollution visualization early warning method. The method of the invention can perform real-time prediction and early warning of real-time dynamic air pollutants at any point in the road traffic coverage area, and the method of the invention has high reliability and good practicability.
Owner:CENT SOUTH UNIV
Vehicle riding sharing planning method based on urban heterogeneity
ActiveCN113096377AThe rideshare planning method is real and reliableEase traffic congestionDetection of traffic movementTraffic emissionTraffic network
The invention discloses a car riding sharing planning method based on urban heterogeneity, which mainly adopts a market experiment method, a traffic network modeling optimization method and a traffic simulation method, and particularly establishes a car riding sharing system model for reasonably describing different urban conditions in traffic network modeling optimization and traffic simulation. The scheme effect is analyzed more practically through simulation, so that the obtained ride-sharing planning method is more real and reliable; analysis in the implementation process can be used as a policy basis for relieving traffic congestion and improving the traffic environment, it is predicted that the traffic congestion of a city will be relieved, resources are saved, meanwhile, traffic emission is reduced, and the environment is improved; under the background of vigorously advocating ride sharing, a reasonable ride sharing system can be established, so that urban traffic enters a virtuous circle, and a good traffic condition is provided for the society.
Owner:SOUTHWEST JIAOTONG UNIV
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