Short-term prediction method of viaduct travel time based on traffic scene radar

A technology of travel time and prediction method, which is applied in the direction of traffic flow detection, traffic control system, road vehicle traffic control system, etc. It can solve the problems of delaying the normal affairs of drivers and passengers, long travel time, etc., and achieve optimal traffic management plan, equalize traffic flow, ensure accuracy and reliability effects

Active Publication Date: 2018-11-02
ANHUI SUN CREATE ELECTRONICS
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in real life, due to the temporary congestion of the viaduct, the travel time of the viaduct is longer than that of ordinary roads. In addition, the closed nature of the viaduct itself often delays the normal affairs of drivers and passengers.

Method used

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  • Short-term prediction method of viaduct travel time based on traffic scene radar
  • Short-term prediction method of viaduct travel time based on traffic scene radar
  • Short-term prediction method of viaduct travel time based on traffic scene radar

Examples

Experimental program
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Effect test

Embodiment

[0092] Select the test road section to install, deploy and debug the traffic scene radar to ensure the return of data collected by the traffic scene radar. The sampling period is 5 minutes, and the experimental road section is 934m long.

[0093] Select the data of a sampling period 7:00-7:05, there are 15 vehicles passing by during this period, and their instantaneous speeds are: 71km / h, 68km / h, 64km / h, 72km / h, 59km / h, 71km / h, 65km / h, 68km / h, 55km / h, 67km / h, 78km / h, 71km / h, 69km / h, 66km / h, 70km / h.

[0094] Calculate the average travel speed of the viaduct section within a single sampling period:

[0095] v=(71+68+64+72+59+71+65+68+55+67+78+71+69+66+70) / 15=67.6km / h=18.78m / s

[0096] Calculate the travel time of the viaduct in a single sampling period: t = 934 / 18.78 = 49.73s

[0097] Get the travel time for the period 7:05-7:10 of the next sample:

[0098] 1) Take the travel time of the first three sampling periods 7:00-7:05, 6:55-7:00, 6:50-6:55:

[0099] t=49.73s, t 1 =...

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Abstract

The invention relates to the field of urban viaduct outgoing service technology, and particularly to a viaduct travel time short-term forecasting method based on a traffic scene radar. The method comprises the following steps of 1), performing installation, disposition and debugging of the traffic scene radar; 2), transmitting data which are acquired by the traffic scene radar; 3), calculating an average travel time of a viaduct section in a single sampling period; 4), calculating the travel time of the viaduct in the single sampling period; and 5), calculating a viaduct travel time predicated period. The viaduct travel time short-term forecasting method can realize forecast on future travel time of the viaduct section according to traffic information which is acquired by the traffic scene radar, thereby facilitating selection of an optimal driving router according to an actual outgoing time requirement, and reducing time delay in outgoing. Furthermore the viaduct travel time short-term forecasting method supplies basis for balancing traffic flow, alleviating traffic jam on a road, optimizing a traffic management solution, improving traffic control, etc.

Description

technical field [0001] The invention relates to the technical field of urban viaduct travel services, in particular to a short-term prediction method for viaduct travel time based on traffic scene radar. Background technique [0002] The viaduct is the main artery of the urban traffic system, carrying the main traffic load in all directions of the city; due to its good sealing and fast driving speed, drivers usually choose it as a travel route. However, in real life, due to the temporary congestion of the viaduct, the travel time of the viaduct is longer than that of ordinary roads. In addition, the closed nature of the viaduct itself often delays the normal affairs of drivers and passengers. Under this background, how to find an online prediction method for the viaduct travel time, so as to realize the accurate prediction of the viaduct travel time of the specified section within a certain period of time in the future, so as to effectively reduce travel delays while allevia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0104
Inventor 邹娇董婉丽孙晓静刘倩杨灿
Owner ANHUI SUN CREATE ELECTRONICS
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