A multi-source data fusion method for predicting urban road network flooding status

Abstract

The invention provides an urban road network water accumulation state prediction method based on multi-source data fusion. In view of the deficiencies of the current road water accumulation monitoring, multi-source monitoring data such as water accumulation monitoring data and traffic operation data are synthetically utilized, the traffic operation characteristics under different water accumulation environments are considered, whether road network water accumulation monitoring stations are built at intersections and road sections is combined, and thus, water accumulation states and predictionanalysis of the intersections or the road sections under different water accumulation states and different traffic operation conditions are given. Based on water accumulation judgment and prediction results of all intersections and all road sections, classification and color division for different water accumulation states of the road are built, a road network water accumulation state prediction map is built, and thus, discrete point water accumulation monitoring is expanded to road network-level water accumulation state analysis, the water accumulation distribution condition and the influenceproportions of roads which are moderately or above influenced by urban waterlogging are obtained, and finally, qualitative and quantitative prediction analysis on the road network water accumulationstates can be realized.

Description

technical field [0001] The invention discloses a method for predicting the state of water accumulation in an urban road network based on multi-source data fusion, and belongs to the field of monitoring the state of water accumulation in roads under urban rainstorm and waterlogging scenarios. Background technique [0002] At present, due to the impact of heavy rains in cities, waterlogging is common in urban areas, resulting in trapped vehicles and personnel, property losses, traffic interruptions and even paralysis. With the acceleration of urbanization in my country, the adverse consequences caused by urban waterlogging have become more and more serious, seriously hindering the sustainable development of cities. In order to improve the monitoring level of waterlogging and avoid various losses caused by waterlogging, the rainfall road network waterlogging monitoring station can effectively and accurately monitor the waterlogging situation after the rainstorm. According to th...

AI Technical Summary

Problems solved by technology

However, due to problems such as construction cost, monitoring scope, and practicability, urban rainfall road network water accumulation monitoring stations are generally only built for individual or key locations, and there is no large-scale, high-density implementation of effective monitoring of rainfall and water accumulation in the entire urban area. Monitoring, that is, once there is a heavy rain in the city, only the water accumulation near the road network water accumulation monitoring station can be obtained. It is a kind of water accumulation monitoring at discrete points. Monitoring of stagnant water status

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