Dynamic Vehicle Guidance System for Traffic Congestion Management

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Solution Overview

Problem

Existing vehicle guidance systems fail to effectively alleviate traffic congestion by not efficiently managing vehicle flow rates on roads, leading to prolonged congestion and inadequate suppression of traffic congestion occurrence.

Innovation Solution

A vehicle guidance system that includes flow rate detection units, storage units, determination units, and guidance units to detect and manage vehicle flow rates on roads, guiding vehicles to optimize road usage and prevent congestion by determining rules for changing flow rates based on real-time data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If vehicles are guided to a bypass road when traffic congestion occurs, then traffic congestion on the congested road is alleviated, but traffic congestion may occur on the bypass road

Engineering Contradiction:
Improvetraffic flow efficiencyVSAvoidtraffic congestion
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system continuously monitors traffic flow rates on both congested and candidate roads, using this feedback to dynamically adjust guidance decisions. The determination unit acquires flow rate information and determines whether to change flow rates based on real-time conditions, preventing congestion on bypass roads while maintaining relief on congested roads

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The guidance system dynamically adjusts vehicle flow rates based on changing traffic conditions. Instead of static routing, the system determines rules for changing flow rates in real-time, allowing the bypass road to be utilized only when conditions are favorable and preventing congestion from forming

Inventive Principle:
Principle #15Dynamics

2Loss of time

If guiding of vehicles is started after occurrence of traffic congestion, then vehicles can be redirected to bypass roads, but it takes a long time until the traffic congestion is eliminated

Engineering Contradiction:
Improvecongestion durationVSAvoidvehicle flow rate
Core Design Contradiction:
Loss of timeVSSpeed

Solution Approach 1:

The system performs preliminary actions by proactively guiding vehicles to bypass roads before the congested road becomes completely blocked. By detecting flow rate trends and predicting congestion development, the system redirects vehicles in advance, reducing the overall congestion duration and maintaining higher average flow rates

Inventive Principle:
Principle #10Preliminary action

3Productivity

If the total number of vehicles on each road is kept constant, then road capacity can be fully utilized, but traffic congestion occurs when flow rate optimization is not performed

Engineering Contradiction:
Improveroad capacity utilizationVSAvoidtraffic congestion
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system changes the flow rate parameter dynamically based on road conditions. Instead of maintaining constant vehicle numbers, the determination unit adjusts flow rates to optimize both capacity utilization and congestion prevention, finding the optimal balance between maximizing road usage and avoiding congestion

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9607511B2Vehicle guidance system, vehicle guidance method, management device, and control method for same
Publication Date: 2017.03.28 NEC CORP
  • US9607511B2 patent drawing
  • US9607511B2 patent drawing
  • US9607511B2 patent drawing

AI summary

This vehicle guidance system carries out guidance of vehicles that are traveling on roads making up a road network, the vehicle guidance system being provided with: a flow detection unit that detects the flow of vehicles on each of the roads making up a road network, and generates flow information indicating the detection result; a storage unit that creates associations between the flow information for the roads which has been generated by the flow detection unit, and road-identifying information indicating the corresponding roads, and storing the information; a decision unit that, for each of the roads making up the road network, specifies a candidate road that is a road which vehicles flow from the road in question, acquires the flow information that is stored in association with the road-identifying information indicating the specified candidate road in question, and based on the acquired flow information, decides on a flow increase or decrease policy of vehicles on the candidate road; and a guidance unit that carries out guidance of the vehicles, in accordance with the decision by the decision unit.