Research Article

A Data-Driven Functional Classification of Urban Roadways Based on Geometric Design, Traffic Characteristics, and Land Use Features

Table 7

Chi-square test based on design speed.

Functional systemsLocal frequency (percent)Collector frequency (percent)Minor arterial frequency (percent)Major arterial frequency (percent)Total frequency (percent)Chi-square test result

Observed8 (2.25%)109 (30.25%)142 (39.45%)101 (28.05%)360 (100%)ā€‰=ā€‰291.5
Predicted186 (51.67%)45 (12.5%)129 (35.83%)0 (0%)360 (100%)