3D Traffic Flow Visualization via Height-Encoded Lines

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Solution Overview

Problem

Current traffic flow mapping technologies face challenges in effectively communicating complex traffic conditions due to poor resolution in color coding, making it difficult to distinguish between varying traffic flow levels.

Innovation Solution

A computer-implemented method that generates a two-dimensional map with a perspective view, projecting traffic flow information as a line above the road, where the line's height represents the probability of being stopped versus moving, allowing for a three-dimensional representation of traffic flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If color coding is used to represent traffic flow on roads, then traffic flow information can be displayed, but the resolution is poor and it becomes difficult to distinguish varying traffic flow levels

Engineering Contradiction:
Improvetraffic flow informationVSAvoidtraffic flow resolution
Core Design Contradiction:
Loss of informationVSMeasurement precision

Solution Approach 1:

The patent transforms the traditional two-dimensional color-coded road representation into a three-dimensional visualization by projecting traffic flow data as vertical lines above the road. The height of these lines corresponds to traffic flow intensity, adding a vertical dimension that enables precise differentiation of traffic conditions without relying solely on color variations.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If color modulation of roads is used to show traffic flow, then traffic information can be communicated, but greater resolution traffic flow is difficult to distinguish

Engineering Contradiction:
Improvetraffic information communicationVSAvoidtraffic flow distinction
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The invention adds a vertical dimension to traffic flow visualization by displaying traffic data as lines extending upward from the road surface. This third dimension (height) provides intuitive visual cues for traffic intensity, making it easier to distinguish between different flow levels while maintaining ease of interpretation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent combines color modulation with vertical line projection, where colors represent different traffic flow categories and line heights represent the intensity or probability of stopped versus moving traffic. This dual encoding enhances both communication effectiveness and measurement precision.

Inventive Principle:
Principle #32Color changes

Data Source

PatentEP2820633B1Three-dimensional traffic flow presentation
Publication Date: 2024.01.24 HERE GLOBAL BV
  • EP2820633B1 patent drawingFigure 1~2
  • EP2820633B1 patent drawingFigure 3
  • EP2820633B1 patent drawingFigure 4

AI summary

Traffic flow is viewed in mapping or navigation. A processor generates a two- dimensional map from a perspective view. The perspective view is at an angle, which is not a normal to the map, looking down on the two-dimensional map. At least one road or pathway represented on the two-dimensional map is identified. Traffic flow information is obtained for a plurality of locations along the at least one road or pathway. Aline is projected along a third dimension on the two-dimensional map. The line is above the road or pathway from the perspective view. A height of the line is a function of the traffic flow information for the locations such that the height for a first of the locations is greater than for a second of the locations. The map is displayed with the line.