Contents ----------------- Preface ----------------- Introduction 1.1 Background 1.2 The Development of “Universal Accessibility” 1.3 Objectives 1.4 Study Methods and Framework ----------------- Universal Accessibility in the Built Environment 2.1 The Challenge in Hong Kong 2.2 Aging Population 2.3 Universal Accessibility in External Areas, Open Spaces and Green Spaces 2.4 Major Issues 2.5 The Way Forward ----------------- Best Practices and Guidelines 3.1 Access Route 3.2 Connectivity and Interfacing Elements 3.3 Landscaped Spaces 3.4 Furniture, Equipment and Fittings 3.5 Way Finding, Orientation and Signage 3.6 Detectable Surfaces 3.7 Colour and Luminous Contrast 3.8 Lighting 3.9 Safety 3.10 Management and Maintenance ----------------- Photo Gallery 4.1 Access Route 4.2 Connectivity and Interfacing Elements 4.3 Landscaped Spaces 4.4 Furniture, Equipment and Fittings 4.5 Way Finding, Orientation and Signage 4.6 Detectable Surfaces 4.7 Colour and Luminous Contrast 4.8 Lighting ----------------- Appendices A1 Case Study 1 - Rehabilitation Complex in Wong Chuk Hang A2 Case Study 2 - An External Public Space in Ma On Shan ----------------- Acknowledgements ----------------- References ----------------- View or Download PDF

3. Best Practices and Guidelines     3.1 Access Route 3.2 Connectivity and Interfacing Elements 3.3 Landscaped Spaces 3.4 Furniture, Equipment and Fittings 3.5 Way Finding, Orientation and Signage     3.6 Detectable Surfaces 3.6.1 Introduction 3.6.2 Tactile Guide Path — Design Considerations   3.6.2.1 Dimension   3.6.2.2 Location   3.6.2.3 Application   3.6.2.4 Material     3.6.3 Other Detectable Elements / Cues 3.6.4 Detectable Information -Tactile Map and Sign, Tactile Model, Braille 3.7 Colour and Luminous Contrast 3.8 Lighting 3.9 Safety 3.10 Management and Maintenance 3.6 Detectable Surfaces   3.6.1 Introduction     Detectable surfaces serve the purpose of way finding and hazard warning. Such provision is essential in allowing people with visual impairment to move-about a space safely and independently. In large external areas and connecting spaces where access for the visually impaired can be rather challenging, tactile guide paths and detectable cues are particularly useful to facilitate orientation and way finding. 3.6.2 Tactile Guide Path — Design Considerations     3.6.2.1 Dimension     The Design Manual for Barrier Free Access published by the Buildings Department in 1997 stipulates some requirements on the provision of tactile warning strips and tactile guide path.   In general, the requirements on tactile warning strips and tactile guide path are as follows: (a) Directional tile (3.6.2.1a):     34mm wide parallel raised bars each module 300mm x 300mm, with 4 bars per tile laid along the direction of travel path (b) Hazard warning tile (3.6.2.1b):     35mm diameter raised dots arranged in square grid parallel to the sides of the tile each module 300mm x 300mm nominal width of 600mm (300mm wide at staircase landings) laid perpendicular to direction of travel (c) Positional tile (3.6.2.1c):     23mm diameter raised dots arranged in staggered position each module 300mm x 300mm overall 600mm x 600mm laid at change in travel direction (d) Height of the raised bars and dots     5mm         3.6.2.1a  Directional tile with parallel raised bars laid along the travel direction   3.6.2.1b  Hazard warning tile with raised dots arranged in square grid parallel to the sides of the tile, laid perpendicular to travel direction   3.6.2.1c  Positional tile with staggered dots positioned at junction of tactile guide path to indicate change in travel direction