Expressway congestion state judgment and traffic flow management and control system and method
A congested state, expressway technology, applied in the traffic control system of road vehicles, traffic control system, traffic flow detection, etc., can solve the problems of lack of front-end display layer and back-end business processing layer, lack of processing capacity of the system, etc.
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Embodiment 1
[0122] Such as figure 1 As shown, a highway congestion state discrimination and traffic flow control system, including a data acquisition module, a data processing module, a back-end service module and a front-end display module;
[0123] The data collection module is configured to collect traffic flow data at the trunk line of the expressway and vehicle queuing length information at the entrance ramp;
[0124] The data processing module is configured to divide the degree of traffic congestion, determine the congestion state, and perform flow control judgment according to the congestion state;
[0125] The back-end service module is configured to provide a data interface responsible for data interaction and realize data storage, query, and update functions;
[0126] The front-end display module is configured to realize the visual display of traffic conditions and equipment management data of different road sections;
[0127] The data acquisition module collects the traffic f...
Embodiment 2
[0152] On the basis of above-mentioned embodiment 1, the present invention also mentions a kind of expressway congestion status discrimination and traffic flow control method, and its flow process is as follows figure 2 As shown, it specifically includes the following steps:
[0153] Step 1: selection of congestion speed threshold;
[0154] Utilizing the current highway section and ramp service level standards, the design speed is based on the 120km / h highway operation evaluation standard, and the speed congestion is divided into four levels, 04 3 2 1 <120;
[0155] v 1 Indicates unimpeded; v 2 Indicates that it is basically unblocked; v 3 means crowded; v 4 indicates severe congestion;
[0156] Step 2: Transform the speed congestion level into three road operation states;
[0157] Transform the speed congestion level into three road operation states: no congestion, no serious congestion, and severe congestion;
[0158] The speed congestion level is unblocked and basic...
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