Parking Generation Manual 5th edition

Hi Maki I did some (a lot of) research regarding this matter and in my opinion we should follow the ITE Transportation Planning Handbook, 4th edition. I may be wrong as I am not a transportation planner but Parking Generation Manual, 5th edition, does not contain any recommended parking ratios. Also please see the addenda table: https://www.usgbc.org/sites/default/files/2020-07/LEED%20BD%2BC%20v4.1%20Addenda%20Table%20-%201st%20edition_7-10-2020_0.pdf On the bottom of the table there is a sentence that "Shaded rows denote rating system changes". LTc Reduced Parking Footprint addenda is not shaded, so it doesn't change the rating system. The requirement remains: "Provide parking capacity that is a 30% reduction below the base ratios recommended by the Parking Consultants Council, as shown in the Institute of Transportation Engineers’ Transportation Planning Handbook, 4th edition, Table 11-12". Furthermore, I found the 4th edition of the Handbook on Google Books: https://books.google.pl/books?id=UhmrDAAAQBAJ&pg=PT33&hl=pl&source=gbs_selected_pages&cad=3#v=onepage&q&f=false It is a preview only, but it is possible to access the table 11.6 Recommended Parking Ratios. If I see correctly the ratios for offices didn't change from 3rd edition, not sure about the rest. Hope this will be helpful!

HI Takayuki,
Do you perhaps have a copy of the relevant Table from the 5th edition of the manual?

I could not access table 11.6 on that link. How can I access it?

The July 25, 2019, addenda updated the LEED v4.1 guidelines by replacing references to the Transportation Planning Handbook, 4th Edition with the Parking Generation Manual, 5th Edition in specific sections, notably the Further Explanation, Bullet 1, and Referenced Standards. This change suggests that for pursuing Option 2 under the Reduced Parking Footprint credit, the Parking Generation Manual, 5th Edition should be consulted instead of the previous handbook. The addenda did not extend this replacement to the Requirements and Step-by-Step Guidance sections, possibly because these sections provide overarching directives that are not dependent on specific reference materials. For precise guidance, it's advisable to consult the latest LEED documentation or reach out to a professional book cover design agency for assistance.