Method for estimating OD position and OD matrix by means of traffic flow
A technology of traffic flow and traffic flow, applied in the field of traffic management, which can solve the problems of low accuracy and large subjective influence.
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[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0032] Such as figure 1 As shown, a method for estimating OD position and OD matrix of traffic flow, specifically includes the following steps:
[0033] The first step is to obtain historical traffic flow: select a group of road networks consisting of N crossroads, each crossroad is connected by n road sections, N and n are natural numbers, and obtain the historical traffic of this road network within 24 hours traffic data S.
[0034] The second step, cluster analysis: based on the historical traffic flow data S of the highway network within 24 hours, the traffic flow data of each road section constitutes a characteristic data group, and cluster analysis is performed on the characteristic data group to obtain k classes and the traffic flow of k different time periods, which are sequentially recorded as S 1 to S k , k is a natural number an...
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