Urban Street Design Guide Welcome to NYC.gov（欢迎来到NYC.gov城市街道设计指南）.pdf

Urban Street Design Guide OVERVIEW OCTOBER 2012 New Orleans, LA National Association of City Transportation Officials 55 Water St., Floor 9 New York, NY 10041 nacto@ 212.839.6421 Contents 4 Foreword 5 Urban Street Design Guide Outline 6 Five Principles of Urban Street Design 8 Streets and Intersections 10 Very Large Streets 12 Transit Streets 14 Medium Streets 16 Act Now! 18 Very Small Streets 20 Alleys Passageways 22 Critical Issues 24 Speed and Safety 26 Design vs. Target Speed 28 Treatments Elements 30 Moving the Curb 32 Low-Impact Design 34 Parklets, Pop-ups and Street Seats 35 Acknowledgments NACTO Urban Street Design Guide Overview 3 Foreword Designing Streets as Public Spaces New York, NY The NACTO Urban Street Design Guide charts the design principles and strategies that cities are adopting to confront 21st Century demands on their streets. It is based on the fundamental idea that streets are spaces for people as well as arteries for traffic. The guide is rooted in on-the-ground, built projects and great streets, and reflects international best practices and research in urban design, planning and engineering. Many large cities across the United S