The invention discloses a dynamic expression method of an urban traffic road network grid lock transmission based on a GIS. The method comprises the steps of: when an intersection overflow in an urban road network is detected, querying and displaying attribute information such as the occurrence time, the severity level and the position; assisted by a manual report manner, utilizing modern traffic detection technologies such as video image processing to obtain the increasing speed of vehicle queuing namely a stop wave speed, estimating a queuing length, and accurately predicting the transmission range of a prediction grid lock; based on a traffic wave theory, estimating the time for forming crossing interlocking caused by the propagating of the vehicle queuing length; and under the conditions that no traffic control measures are taken and no traffic flow induction is carried out, the dynamic process of the urban traffic road network grid lock changing with time and space is obtained on an electronic map. A scientific and reasonable data support is provided to traffic managers for making corresponding control measures, and the purpose of preventing the large-scale transmission of the grid lock is achieved.
Dynamic expression method of urban traffic road network grid lock transmission based on GIS
2016-02-24
Patent
Elektronische Ressource
Englisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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