855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 067

Extracted Content

(𝑅 𝑅 𝑅 𝑅𝑅 𝑝 𝑝 𝑝 𝑝𝑝 𝑜 𝑜 𝑜 𝑜 𝑜𝑜 𝑡𝑡ℎ𝑎 𝑑 𝑑 𝑑 × 𝑛 𝑛 𝑛 𝑜 𝑑 𝑑 𝑤 𝑤𝑤ℎ𝑖 𝑎𝑎 𝑦 𝑦 𝑎 𝑎 𝑎𝑎 𝑝 𝑝 𝑝 𝑝𝑝 𝑜 𝑜 𝑜 𝑜 𝑜 ×

𝐷 𝐷 𝐷𝐷 𝑟 𝑟 𝑟𝑟 𝑡 𝑡 𝑉 𝑉𝑉) 𝑥𝑥 𝐸 𝐸 𝑠𝑠𝑖 𝑖𝑖 𝑓 𝑓 𝑓 Estimate the total reduction of carbon emissions Project teams are required to calculate the difference in emissions to get the total estimated reduction of carbon emissions between the annual baseline and proposed case.

Option 1. Parking

TDM strategies, like reducing parking spaces and implementing parking fees, tackle broader land use and cost challenges tied to parking. By decreasing the need for large parking facilities, TDM conserves valuable land and reduces infrastructure and maintenance expenses, promoting more sustainable transportation options that align with project efficiency and environmental goals.

Limiting parking availability also helps curb induced demand, as fewer parking spaces discourage single-occupancy vehicle (SOV) trips and encourage alternative transportation modes. Another effective approach is unbundling parking, which separates the cost of parking from building rentals or leases. For instance, a mixed-use office building leases commercial spaces to businesses. Instead of including parking spaces as part of the standard lease package, the building owner offers parking spaces as a separate, optional service.

PATH 1. REDUCE PARKING

Limiting parking availability also helps curb induced demand, as fewer parking spaces discourage SOV trips and encourage alternative transportation modes. This path uses a parking baseline against which reductions in parking supply can be compared.

First, identify the total baseline capacity of parking. Teams should determine the total baseline parking capacity using the base ratios from The Institute of Transportation Engineers’ Parking Generation Manual [19] or supplementary LEED guidance published by USGBC. If the project type does not fit any base ratio category or if the tenant is not yet known, select the best approximation (i.e., the most applicable land use type for the anticipated tenant) and provide a narrative justifying this selection. For projects with multiple space types, calculate and separately track the base ratio for each use and compute the total project baseline capacity.

Next, teams must identify the total provided capacity they will supply based on their needs assessment. Count both new and existing spaces.

19 “Parking Generation Manual”, The Institute for Transportation Engineers, accessed March 31, 2025, https://www.ite.org/technicalresources/topics/trip-and-parking-generation/.

U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 56