User's Guide to Identifying Effective Measures to Restrict Vehicle Turning Movements.

摘要

This document guides the analyst responsible for selecting alternative turning treatment configurations for access point locations (driveways and public intersections, as appropriate). The selection of effective turning movement strategies is dependent upon many factors including the traffic volume, roadway cross section (particularly the number of lanes), context of the access point (i.e. land use), acceptable level of non-compliance, access density, and expected corridor speed reductions. In extreme cases the number of observed crashes at a location, in combination with the corridor traffic volume, will require the use of restrictive treatments including longitudinal medians; however, this document identifies alternatives, where practical, to the restrictive median treatment.