Change Rate Exploration System for Congestion Control

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Solution Overview

Problem

Existing systems for reducing congestion by changing people's behavior risk over-crowding in other areas, making it challenging to achieve a desirable congestion level.

Innovation Solution

A change rate search system that simulates people's behavior in response to predetermined measures and searches for an optimal change rate to achieve a desirable degree of congestion in a behavior area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If measures to reduce congestion by changing people's behavior are taken, then congestion in the target area is reduced, but other times or places become more crowded

Engineering Contradiction:

Improvecongestion level in target areaVSAvoidover-crowding in other areas

Core Design Contradiction:

Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The system changes the parameter of behavior change rate from a fixed assumption to a variable that is optimized through simulation. By adjusting this rate parameter and observing the resulting congestion distribution, the system identifies an optimal rate that reduces target area congestion without causing excessive overflow to other areas.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system implements feedback by simulating the consequences of behavior change measures and using the simulation results to determine the optimal change rate. The simulation provides feedback on how different change rates affect congestion distribution, allowing the system to select rates that achieve desirable congestion levels without harmful side effects.

Inventive Principle:

Principle #23Feedback

2Productivity

If the behavior change rate is increased to reduce congestion, then congestion reduction effect is enhanced, but the risk of over-crowding in other areas increases

Engineering Contradiction:

Improvecongestion reduction effectivenessVSAvoidrisk of counterproductive congestion

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system performs preliminary simulation before implementing behavior change measures to predict their consequences. By pre-simulating different change rates and observing the resulting congestion patterns, the system can select an optimal rate that ensures effective congestion reduction while avoiding the risk of creating new congestion problems in other areas.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20250156775A1Change rate exploration system

Publication Date: 2025.05.15 NTT DOCOMO INC

AI summary

A change rate search system is a system that searches for a change rate, which is a rate at which people change their behavior in response to predetermined measures, to make the degree of congestion in the people's behavior area desirable under predetermined criteria, and includes: a simulation unit that sets a change rate for predetermined measures and simulates people's behavior when the predetermined measures are taken in a behavior area by using the set change rate; and a search unit that searches for a desirable change rate based on the degree of congestion obtained from simulation results by the simulation unit.