Road traffic congestion index calculation method based on fixed detection device

A traffic congestion index, fixed detection technology, applied in the field of traffic management, can solve problems such as inability to accurately group, decision makers and travelers' congestion feelings, and inability to adapt to the actual traffic conditions in different cities.

A traffic congestion index, fixed detection technology, applied in the field of traffic management, can solve problems such as inability to accurately group, decision makers and travelers' congestion feelings, and inability to adapt to the actual traffic conditions in different cities.

CN108629973AInactive Publication Date: 2018-10-09SICHUAN JIUZHOU VIDEO TECH
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  • Road traffic congestion index calculation method based on fixed detection device
  • Road traffic congestion index calculation method based on fixed detection device
  • Road traffic congestion index calculation method based on fixed detection device

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Comparison scheme
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Embodiment Construction

[0074] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0075] Taking the main road of Linyuan (Linyuankou-Lingnan intersection) in Mianyang City, Sichuan Province as an example, the actual TPI is calculated according to the above model based on the basic indicators of traffic flow and vehicle speed at the location, and the model verification work is carried out. This road section is a two-way six-lane road, and the road type is a trunk road. 5 minutes is a collection cycle, and the travel time detected by the fixed detector (observed value from 7:00 to 19:00 on April 13, 2018, where the vertical axis is the speed and the horizontal axis is the time point) is as follows figure 1 As shown, the effective traffic statistics are as follows figure 2 As shown, the index calculated according to the parameters of speed and travel time is as follows image 3 shown.

[0076] Depend on figure 1 , figu...

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Abstract

The invention discloses a road traffic congestion index calculation method based on a fixed detection device. The method comprises the steps that data collected by the fixed detection device are compared and processed by using a period of 5 to 10 minutes, so as to acquire a representative speed value and travel time of the road in a time period; and a congestion index calculation formula is used to convert the speed value and travel time into a road traffic congestion index to acquire the current traffic congestion of the road. According to the invention, the traffic congestion index of the road network is calculated through parameters such as the length of the road, the travel time, the speed, the number of lanes, the free travel speed, the occupancy rate and the flow rate; travel delay time is used to reflect the traffic congestion index, and the traffic congestion index is closer to the congestion feeling of a driver; the calculation of the road congestion index can provide automatic input parameters for an urban intelligent traffic light signal controller; automatic traffic light control is realized; and the road use efficiency and the work efficiency of a traffic management department are improved.

Description

technical field [0001] The invention relates to a calculation method of a traffic congestion index, in particular to a calculation method of a road section traffic congestion index based on a fixed detection device, and belongs to the technical field of traffic management. Background technique [0002] With the rapid development of my country's social economy, the number of cars in various cities continues to grow, and many cities are still in the period of urban development of old city reconstruction and new city construction. Road traffic congestion is becoming more and more frequent, and urban road traffic management departments have to use various channels to alleviate traffic congestion and improve road use efficiency and service levels. [0003] Since the 1970s, major cities around the world have begun to build many traffic management systems, and based on comprehensive detection information and predictive analysis, proactive traffic management has been implemented to g...

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Application Information

Patent Timeline
09 Oct 2018
Publication
CN108629973A
IPC
G08G1/01; G06Q50/26; G06Q10/06
CPC
G06Q10/0639; G06Q50/26; G08G1/0133
Inventors
王成中; 杨贤柱