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Method for determining a queue identification number and for determining the length of the queue

一种队列长度、队列的技术，应用在确定队列识别数和确定队列长度领域，能够解决不能确定车辆队列长度等问题

Inactive Publication Date: 2004-09-01
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main disadvantage of this known method is that it is not possible to determine the length of the platoon of vehicles greater than the distance between the console and the detector

Method used

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  • Method for determining a queue identification number and for determining the length of the queue
  • Method for determining a queue identification number and for determining the length of the queue
  • Method for determining a queue identification number and for determining the length of the queue

Examples

Experimental program
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Embodiment Construction

[0064] method 1

[0065] The method for estimating the vehicle queue length and its calibration is applied to roads leading to heavily loaded traffic light installations (city center direction of Landsberger / Trappentreustrasse, Munich) with drastically changing green times (passing times).

[0066] Set the detector 30m from the stop line or about 5 cars away. Take 22 seconds as the reference fill time for this distance.

[0067] If this reference fill time is exceeded, δ is assigned 0, otherwise 1 is assigned. by formula smoothing the vehicle platoon eigenfactor, where α is typically between 0.05 and 0.2, and

[0068] Calculate the lower limit by

[0069] L n 0 = q n 1 - min ( γ 1 , bγ 2 ...

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Abstract

The invention relates to a method for determining a queue identification number on user stations for dispatching individually displaceable units. Two methods for estimating the length of the queue of the user station are provided with the aid of the queue identification number. The first method uses a linear coherence between the length of the queue and the connected queue identification number. In each dispatching phase, the gradient of the queue length function is calibrated, wherein the updated queue identification number is compared to a lower level for the length of the queue. In the second method, the length of the queue is calculated from the queue identification number and the necessary saturation time with the aid of a macroscopic waiting line model.

Description

technical field [0001] The invention relates to a method for determining the characteristic factor δ of a vehicle platoon and a self-calibration method derived therefrom for estimating the length of a platoon of vehicles at a console, such as a traffic light or a checkpoint, for handling individual units moving individually, And have detectors set upstream. The parameters determined in this way and the characteristic values ​​derived therefrom can be used to control traffic lights or barriers, or to display the traffic status in the host device. Background technique [0002] An important problem in road traffic technology is the determination of vehicle queue lengths at traffic lights in order to obtain information items related to traffic flow. Furthermore, information on the length of the vehicle queue can be used to control signaling devices (Bernhard Friedrich, Methoden und Potentialeadaptiver Verfahren für die Lichtsignalsteuerung (Methods and potentials of adaptive me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
CPCG08G1/0104
Inventor 于尔根·穆克
Owner TRANSVER
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