Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A traffic index calculation method for urban traffic

A technology of traffic index and calculation method, applied in the field of intelligent transportation, can solve the problems of no application scenario and high cost, and achieve the effect of fast calculation speed, strong feasibility and high accuracy

Active Publication Date: 2017-03-15
ENJOYOR COMPANY LIMITED
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent "Estimation System for Road Section Traffic Index Based on UAV Measurement" provides a road section traffic index estimation system based on UAV measurement. According to the GPS positioning data of key road sections, the UAV is automatically introduced into the key road section area. Cameras and image processors perform image capture and image processing on key road sections, and estimate the traffic index of key road sections through the technical means of vehicle target recognition, but this method has problems such as high cost of implementation, and there is no application scenario yet

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A traffic index calculation method for urban traffic
  • A traffic index calculation method for urban traffic
  • A traffic index calculation method for urban traffic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0059] Embodiment: This embodiment adopts the microwave data and floating car data in Hangzhou during July 2014 to August 2014. The microwave detector outputs the detector number, detection time, flow rate, lane number, speed, etc. within a certain statistical period at the same time in different lanes, and the data sampling interval is 5 minutes; the floating car GPS detector outputs the detector number and road section within a certain statistical period Number, detection time, speed, etc., the data sampling interval is 5 minutes.

[0060] Such as figure 1 As shown, a traffic index calculation method for urban traffic, the steps are as follows:

[0061] Step 1: Read raw data from the database:

[0062] Connect to the "Hangzhou Road Conditions" database, and use PL / SQL to read microwave data and floating car data at 5-minute intervals from the database.

[0063] Raw microwave data such as figure 2 As shown, it has the following field information: WAVE_ID is the microwav...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an urban traffic-oriented traffic index calculation method. The calculation method is defined by flow and a vehicle speed, and is based on commonly used microwave data and floating car data in urban traffic; and historical or real-time traffic indexes of a road network can be determined by adopting methods such as data fusion, statistical modeling and mathematical modeling. The urban traffic-oriented traffic index calculation method has the characteristics of high accuracy of calculation result, high adaptivity, low cost, high feasibility, simplicity and convenience of calculation process, low time complexity and high operation speed.

Description

technical field [0001] The invention relates to the field of intelligent traffic, in particular to a traffic index calculation method for urban traffic. Background technique [0002] With the continuous development of various high-tech technologies such as microelectronics technology, computer technology, digital communication technology, network technology and artificial intelligence, the three traffic situation information provided by traditional traffic service information, namely congestion, slow traffic and smooth traffic, can no longer satisfy traffic managers. and travelers' intuitive perception of the traffic situation. [0003] The traffic index integrates the spatial scope, duration, and severity of traffic congestion, and is a comprehensive indicator for quantitative evaluation of the overall operation of road network traffic. Compared with the traditional vehicle speed, flow and other parameters, it is intuitive and simple. The traffic index allows people not o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G06Q50/30
CPCG08G1/0125G16Z99/00
Inventor 赵贝贝李建元张麒李芳陈涛李丹王浩靳明豪吴越
Owner ENJOYOR COMPANY LIMITED
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com