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Global Street Design Guide Intersections Intersection Redesign
Global Street Design Guide Index

Global Street Design Guide

Intersection Redesign

Intersection Redesign

Based on the intersection analysis, this intersection is redesigned to provide a legible, safe, and comfortable space for all users.

Design Compact Intersections

  • Break complex intersections into multiple, compact ones.
  • Minimize intersection size through the addition of curb extensions, plazas, and medians. Minimize vehicle turning speeds using medians, realignment, and small corner radii.

Simplify Geometry

  • Bend streets so that they meet at as close to a 90-degree angle as possible.
  • Maintain view corridors and sight lines for legibility and wayfinding.
  • Align crossings with pedestrian desire lines and key destinations.

Analyze Networks

  • Where traffic volume data reveals excess vehicle capacity, reduce the number of lanes along a corridor, consolidate excess turn lanes, and eliminate slip lanes.
  • Reallocate space to medians, cycle infrastructure, or sidewalks.
  • Integrate intersection design elements with the surrounding buildings and plazas.


Existing


Redesign

Integrate Time and Space

  • Restricting vehicle turns at acute-angled intersections with very low volumes saves signal time and improves safety. Provide curb extensions and medians.
  • Align stop lines at all legs of the intersection to be perpendicular to the travel lanes, enhancing overall clarity and visibility for both vehicles and pedestrians.

Increase Pedestrian Space

  • Reallocate space for pedestrians and cyclists. Widen narrow sidewalks and add cycle facilities.
  • Assess and design the entire public realm in a holistic way to create one seamless pedestrian realm.
  • Introduce transit stops and other facilities at appropriate locations.

Start with Vulnerable Users

  • Realign pedestrian crossings to meet the pedestrian desire lines.
  • Add pedestrian ramps and refuge areas at crossings.
  • Reduce vehicle speeds through tighter turning radii and narrower travel lanes.
  • Provide dedicated space for cyclists.

Adapted by Global Street Design Guide published by Island Press.