Method and system for predicting road congestion caused by construction

Abstract

The invention provides a method for predicting road congestion caused by construction, and the method comprises the steps: obtaining the traffic flow, the vehicle following percentage and the average vehicle spacing on a construction road in a period of time, solving the average vehicle group length and the average vehicle group interval, and further combining the actual operation condition of vehicles on the construction road; analyzing the relationship between the average vehicle group length and the corresponding interval standard deviation and the relationship between the average vehicle group interval and the corresponding interval standard deviation to obtain a vehicle group length standard deviation and a vehicle group interval standard deviation; combining the average vehicle group length and the vehicle group length standard deviation, combining the average vehicle group interval and the vehicle group interval standard deviation, generating two sets of sample data in normal distribution randomly, simulating the road vehicle running condition, solving the probability of congestion through simulation analysis, and further calculating the congestion probability according to the solved probability of congestion; and predicting whether the construction road is congested or not. By implementing the method, the road congestion caused by construction road occupation is predicted, and the method has the characteristics of rapidness and accuracy.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a method and system for predicting road congestion caused by construction. Background technique [0002] According to the statistics of China National Highway Group Co., Ltd., as of December 2019, the total mileage of expressways in my country has exceeded 140,000 kilometers, ranking first in the world in terms of mileage. Because asphalt concrete pavement has the characteristics of low noise, high stability, and comfortable driving, more than 90% of them are asphalt concrete pavement. However, studies have found that due to long-term overloading, many road surfaces have not yet reached their designed service life, and various diseases, such as cracks, unevenness, etc., have occurred. Therefore, road construction and maintenance is a necessary means to improve vehicle driving experience and prolong road use time. [0003] At present, in the process of road co...

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Problems solved by technology

[0003] At present, in the process of road construction and maintenance, the inconvenience of normal traffic operation caused by occupying one side of the road is an important reason for urban traffic congestion.

Traffic congestion increases people's travel time, reduces labor efficiency, increases fuel consumption and increases the difficulty of traffic management, restricts urban development, and brings inconvenience to people's work and life, and the cause of congestion largely depends on driving. The proficiency of the staff, these additional human factors are difficult to quantify, which makes the prediction of congestion very difficult

[0004] However, there are few researches on the traffic congestion model based on driver behavior in the prior art, so there is currently a lack of effective methods to predict road congestion caused by construction

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