What is Canada's road hierarchy (or road classification)?

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Bin Jiang

I suggest you use bottom up approach to road hierarchy:

https://www.researchgate.net/publication/1910404_Street_Hierarchies_A_Minority_of_Streets_Account_for_A_Majority_of_Traffic_Flow

https://www.researchgate.net/publication/236627484_Ht-Index_for_Quantifying_the_Fractal_or_Scaling_Structure_of_Geographic_Features

Related tools for deriving the hierarchy:

http://fromto.hig.se/~bjg/axwoman/

https://en.wikipedia.org/wiki/Head/tail_Breaks

Article Street Hierarchies: A Minority of Streets Account for A Majo...

Article Ht-Index for Quantifying the Fractal or Scaling Structure of...

Hui Li

thank you.

Marc J.I. Gaudry

In its final report, the Canadian Royal Commission on National Passenger Transportation (1992) used the classification that you will find in Table 2 of the enclosed AJD-6 report.

Marc Gaudry