Method and system for evaluating urban cycling traffic resilience based on street view perception and machine learning

By using a street view perception and machine learning approach, tree canopies, bike lanes, sky, and shaded areas in street view images are extracted, and lateral misalignment and sky opening are calculated. This solves the problem of insufficient identification of bike lane sun exposure risk under high green visibility in existing technologies, and achieves a more accurate assessment of the thermal resilience of cycling traffic.

CN122415599APending Publication Date: 2026-07-17TONGJI UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TONGJI UNIV
Filing Date
2026-06-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing urban cycling environment assessment methods fail to accurately identify the risk of continuous sun exposure on the center track of bike lanes under high green visibility conditions, resulting in inconsistencies between thermal resilience assessment results and the actual risks to cyclists.

Method used

Using a street view perception and machine learning approach, the system extracts tree canopy, bike path, sky and shade areas through an image semantic segmentation model, calculates lateral misalignment, sky opening and shade coverage, generates reverse thermal toughness risk values, and identifies the sun exposure risk of cycling routes.

Benefits of technology

It improves the accuracy of urban cycling traffic thermal resilience assessment, can identify the sun exposure risk of the center track of the bike lane under high green visibility, provides interpretable image analysis basis, and supports traffic environment optimization and cycling access improvement.

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Abstract

本发明公开了基于街景感知与机器学习的城市骑行交通热韧性评估方法及系统,涉及交通场景图像处理技术领域;所述方法包括:获取目标骑行路段的街景图像序列,利用图像语义分割模型提取树冠区域、自行车道区域、天空区域和阴影区域;基于自行车道区域生成中心轨迹上方观测区域,计算树冠区域与自行车道区域的横向错位度、中心轨迹天空开口度和自行车道未被阴影覆盖度;结合树冠区域占比生成反向热韧性风险值,并依据各采样位置风险值及其连续关系计算连续暴晒风险值,生成骑行交通热韧性评估结果。本发明能够识别高绿视率表象下自行车道中心轨迹持续暴晒风险,提高评估准确性。
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