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Method and device for determining road section flow

A determination method and technology of road sections, applied in the field of road section flow determination, can solve problems such as large errors in road section flow prediction results

Active Publication Date: 2021-08-03
CENNAVI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the speed density traffic forecasting model, it is difficult to obtain the best historical data of road speed and the historical data of road congestion density. It will lead to a large error in the final traffic forecast of the road segment

Method used

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  • Method and device for determining road section flow
  • Method and device for determining road section flow
  • Method and device for determining road section flow

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Embodiment Construction

[0023] The method and device for determining the flow rate of a road section provided by the present application will be described in detail below with reference to the accompanying drawings.

[0024] The terms "first" and "second" in the specification and drawings of the present application are used to distinguish different objects, rather than to describe a specific order of objects.

[0025] In addition, the terms "including" and "having" mentioned in the description of the present application, as well as any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also includes Other steps or elements inherent to the process, method, product or apparatus are included.

[0026] It should be noted that, in the embodiments of the present application, wor...

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Abstract

The present application provides a method and device for determining road flow, which relate to the technical field of urban road traffic and are used for accurately predicting road flow. The method includes: determining M first traffic flow prediction models for road segments according to historical road segment data of N road segments; historical road segment data includes any one or more of road segment traffic and vehicle speed; M is an integer greater than or equal to 1; N is an integer greater than or equal to 1 or an integer equal to M; determine the target road segment flow prediction model from the M first road segment flow prediction models; determine the road segment traffic of the tested road segment according to the segment parameters of the tested road segment and the target road segment flow prediction model.

Description

technical field [0001] The present application relates to the technical field of urban road traffic, and in particular to a method and device for determining road flow. Background technique [0002] With the continuous increase of vehicle ownership, the traffic flow of urban roads has also increased sharply. The traffic pressure brought by a large number of vehicles to the urban road network is increasing. In order to ensure the orderly operation of road traffic, it is necessary to rely on accurate road traffic data to plan the urban road network and manage and control urban traffic. [0003] The current method for determining the traffic data of road sections is usually to establish a speed density traffic forecasting model. Predict the vehicle flow of other roads through the velocity density flow prediction model. However, in the speed density traffic forecasting model, it is difficult to obtain the best historical data of road speed and the historical data of road cong...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/065
CPCG08G1/0129G08G1/065
Inventor 麻雪丽石清华马三立邱奉翠张玉良丁大江
Owner CENNAVI TECH