摘要: |
A sketch planning methodology is used to determine the optimal spacing of through streets as a function of residential density. Unlike earlier efforts to relate street spacing to residential density, this methodology accounts for changes in mode share, trip length, time of travel, and intersection capacity as residential density increases. The methodology is transferable to other areas by modifying assumptions relating to travel demand and street network characteristics. Planners can derive their own spacing requirements for purposes of community master planning, site-plan review and approval, access management, or zoning and subdivision regulation. |