Method for obtaining OD real-time running time between adjacent checkpoints

A technology of driving time and acquisition method, which is applied to the traffic control system, instrument, traffic control system of road vehicles, etc. It can solve the problems that affect the system performance and real-time performance, the statistical results are inconsistent with the actual, and cannot cover the passing data. , to achieve the effect of short delay of statistical information, less data volume, and less time-consuming

Active Publication Date: 2013-12-25
ENJOYOR COMPANY LIMITED
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Problems solved by technology

[0005] However, when calculating the OD real-time driving time between adjacent checkpoints, the current method used is to count the driving time of each road section in a fixed-length time window. This method has the following defects: the time window is too large, resulting in a large number of Data retrieval affects system performance and real-time performance, and the real-time performance is not strong; the time window selection is too small to cover normal passing data, resulting in statistical results inconsistent with reality

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  • Method for obtaining OD real-time running time between adjacent checkpoints
  • Method for obtaining OD real-time running time between adjacent checkpoints
  • Method for obtaining OD real-time running time between adjacent checkpoints

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[0036] The present invention will be further described below in conjunction with the accompanying drawings.

[0037] refer to figure 2 and image 3 , a method for obtaining OD real-time travel time between adjacent bayonets, including the following process:

[0038] Setting premise: The change of diversion rate from point D to point O (the proportion of vehicles passing through point O and then passing through point D) is relatively stable, but when the diversion rate changes significantly, it means that some of them have passed through Vehicles at points O and D are not counted because the time window length is too small;

[0039] The traffic conditions of the same road section are continuous in time, that is, under the premise that the statistical time interval is relatively short, the OD real-time driving time of adjacent statistical cycles is related, so the next statistical cycle can be determined according to the results of the previous statistical cycle. The length ...

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Abstract

A method for obtaining OD real-time running time between adjacent checkpoints comprises the following steps that (1) parameters are set and initialized; (2) a real-time vehicle passing information table is established, vehicle passing information of all checkpoints is inserted in the table, and the vehicle passing information at least comprises the following keywords such as vehicle types, plate numbers, vehicle passing time, checkpoint ID and checkpoint position information; (3) the statistical process is conducted for the ith time; (4) according to a calculation result obtained in the step (3) and the following mode, OD real-time running time Xi counted at the ith time is adjusted and the length of a statistical time window at the i+1th time is determined; (5) after T minutes, the statistical process of the next period is conducted. According to the method for obtaining OD real-time running time between the adjacent checkpoints, accuracy is good and instantaneity is good.

Description

technical field [0001] The invention relates to the field of OD travel analysis, in particular to a method for acquiring real-time OD travel time between adjacent bayonets. Background technique [0002] With the continuous development of urbanization in my country, the population and the number of motor vehicles in large and medium-sized cities have grown rapidly. However, due to factors such as geography, space, capital investment, and road construction cycle, the speed of urban road construction is relatively slow, and urban roads are basically saturated. state, road congestion is widespread. Therefore, how to choose travel routes and avoid peak road sections has become an important topic in the analysis of citizens' travel. [0003] The existing OD travel time algorithm generally divides the long path into several small road sections, counts the travel time of each road segment by segment, and finally sums up the OD travel time. [0004] With the improvement of the bayon...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/26G08G1/052
Inventor 张珏唐晓东王辉张书浆袁昆刘伟领孙志生
Owner ENJOYOR COMPANY LIMITED
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